[MBZ] 603 ALDA tweaking and fuel economy
Gentlemen, Just refilled the tank on the '87 300D for the first time since adjusting the ALDA. I was disappointed to observe a MAJOR decline in fuel economy---from about 25 mpg to about 19 (50-50 mix of city and highway driving on both tanks). If anything I've been seeing less visible exhaust smoke since tweaking the ALDA, so I'd be really surprised if I was losing unburned fuel that way. What happened? Did I maybe knock a fuel line loose while manhandling the ALDA in and out under the manifold? Did I break it? I only turned the screw on top one full turn counterclockwise, and I know it wasn't adjusted before since the safety cap was still on. One good thing is that I've figured out that, once the cap is off, the adjusting screw and locknut are just barely accessible without taking the ALDA out (or the intake manifold off). Between the #3 and #4 intake runners you can just barely wiggle in a 10mm GearWrench from one side and an improvised low-clearance screwdriver (i.e. nail file or butter knife) from the other. So repeated adjustments to find the right setting shouldn't be too hard, if it sounds like I just overdid it. Anybody have any thoughts? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Alex Chamberlain wrote: Gentlemen, Just refilled the tank on the '87 300D for the first time since adjusting the ALDA. I was disappointed to observe a MAJOR decline in fuel economy---from about 25 mpg to about 19 (50-50 mix of city and highway driving on both tanks). If anything I've been seeing less visible exhaust smoke since tweaking the ALDA, so I'd be really surprised if I was losing unburned fuel that way. What happened? Did I maybe knock a fuel line loose while manhandling the ALDA in and out under the manifold? Did I break it? I only turned the screw on top one full turn counterclockwise, and I know it wasn't adjusted before since the safety cap was still on. One good thing is that I've figured out that, once the cap is off, the adjusting screw and locknut are just barely accessible without taking the ALDA out (or the intake manifold off). Between the #3 and #4 intake runners you can just barely wiggle in a 10mm GearWrench from one side and an improvised low-clearance screwdriver (i.e. nail file or butter knife) from the other. So repeated adjustments to find the right setting shouldn't be too hard, if it sounds like I just overdid it. Anybody have any thoughts? If you're putting more fuel into the engine and not getting more power out then there WILL be smoke. If no smoke then the fuel is going somewhere other than the engine (or you are doing a lot more work - like if the tire pressure are 10 lb low or brakes are dragging). The ALDA didn't do it. All it does is raise fuel as boost increases. No boost, no ALDA action. If there's too much fuel, then there will be smoke! Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On 8/23/07, Marshall Booth [EMAIL PROTECTED] wrote: If you're putting more fuel into the engine and not getting more power out then there WILL be smoke. If no smoke then the fuel is going somewhere other than the engine (or you are doing a lot more work - like if the tire pressure are 10 lb low or brakes are dragging). The ALDA didn't do it. All it does is raise fuel as boost increases. No boost, no ALDA action. If there's too much fuel, then there will be smoke! Thanks Marshall. There is definitely more power since adjusting the ALDA. The car used to be dog-slow off the line, and now responds to the accelerator much more like a gas car. However, interestingly, I can still feel it when the turbo spools up---I thought with the ALDA adjusted properly, there was supposed to be no more turbo lag? So what else might cause a sudden decrease in fuel economy with no corresponding loss of power? Sounds like a fuel leak is about the only possibility, since a blockage (e.g. fuel filter) would cause loss of power, and an overrich condition would cause more smoke. Right? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Alex Chamberlain wrote: Thanks Marshall. There is definitely more power since adjusting the ALDA. The car used to be dog-slow off the line, and now responds to the accelerator much more like a gas car. Now that the car has more power have you been using it? Making more power consumes more fuel... However, interestingly, I can still feel it when the turbo spools up---I thought with the ALDA adjusted properly, there was supposed to be no more turbo lag? Then you might have more room to go on your adjustment. If you've maxed out the adjustment screw you can always shim the ALDA and then re-adjust. HTH John ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Alex Chamberlain wrote: On 8/23/07, Marshall Booth [EMAIL PROTECTED] wrote: If you're putting more fuel into the engine and not getting more power out then there WILL be smoke. If no smoke then the fuel is going somewhere other than the engine (or you are doing a lot more work - like if the tire pressure are 10 lb low or brakes are dragging). The ALDA didn't do it. All it does is raise fuel as boost increases. No boost, no ALDA action. If there's too much fuel, then there will be smoke! Thanks Marshall. There is definitely more power since adjusting the ALDA. The car used to be dog-slow off the line, and now responds to the accelerator much more like a gas car. However, interestingly, I can still feel it when the turbo spools up---I thought with the ALDA adjusted properly, there was supposed to be no more turbo lag? So what else might cause a sudden decrease in fuel economy with no corresponding loss of power? Sounds like a fuel leak is about the only possibility, since a blockage (e.g. fuel filter) would cause loss of power, and an overrich condition would cause more smoke. Right? Over rich ALDA causes smoke. There is NO such thing as turbo lag in a Mercedes diesel. The turbo provides some boost much above idle. What most people refer to as turbo lag is the improper adjustment of the ALDA that provides insufficient fuel until the engine reaches 2200-2500 rpm. The way to optimize the ALDA for power is to increase until there is more than a tad of smoke at full load with the engine running at 4000+ rpm (like pedal to the floor in drive when you have hit about 65-70+ mph) and the turn the ALDA back until only slight wisps of smoke are barely visible in the rear view mirror (under the same conditions) on a bright sunny day. What happens at night in trailing headlights measures NOTHING so don't worry about that! Most serious (more than 3-4 mpg) increases in fuel use results from leaks! Could be any of the soft fuel lines or the return lines that connect the injectors. A fuel filter that is clogged will (paradoxically) result in increased fuel consumption as well. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On 8/23/07, Marshall Booth [EMAIL PROTECTED] wrote: Over rich ALDA causes smoke. There is NO such thing as turbo lag in a Mercedes diesel. The turbo provides some boost much above idle. What most people refer to as turbo lag is the improper adjustment of the ALDA that provides insufficient fuel until the engine reaches 2200-2500 rpm. The way to optimize the ALDA for power is to increase until there is more than a tad of smoke at full load with the engine running at 4000+ rpm (like pedal to the floor in drive when you have hit about 65-70+ mph) and the turn the ALDA back until only slight wisps of smoke are barely visible in the rear view mirror (under the same conditions) on a bright sunny day. What happens at night in trailing headlights measures NOTHING so don't worry about that! Most serious (more than 3-4 mpg) increases in fuel use results from leaks! Could be any of the soft fuel lines or the return lines that connect the injectors. A fuel filter that is clogged will (paradoxically) result in increased fuel consumption as well. Hmm... If anything my ALDA is still under-adjusted then, since if anything I'm seeing less smoke in the daytime. Instead, I will check for leaks and change the fuel filters---it's been a while on those. Thanks! Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Alex Chamberlain [EMAIL PROTECTED] To: Mercedes Discussion List Mercedes@okiebenz.com Sent: Thursday, August 23, 2007 10:59 AM Subject: [MBZ] 603 ALDA tweaking and fuel economy Gentlemen, Just refilled the tank on the '87 300D for the first time since adjusting the ALDA. I was disappointed to observe a MAJOR decline in fuel economy---from about 25 mpg to about 19 (50-50 mix of city and highway driving on both tanks). If anything I've been seeing less visible exhaust smoke since tweaking the ALDA, so I'd be really surprised if I was losing unburned fuel that way. What happened? Did I maybe knock a fuel line loose while manhandling the ALDA in and out under the manifold? Did I break it? I only turned the screw on top one full turn counterclockwise, and I know it wasn't adjusted before since the safety cap was still on. One good thing is that I've figured out that, once the cap is off, the adjusting screw and locknut are just barely accessible without taking the ALDA out (or the intake manifold off). Between the #3 and #4 intake runners you can just barely wiggle in a 10mm GearWrench from one side and an improvised low-clearance screwdriver (i.e. nail file or butter knife) from the other. So repeated adjustments to find the right setting shouldn't be too hard, if it sounds like I just overdid it. Anybody have any thoughts? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Bought them from Rusty, whatever he sells. --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Alex Chamberlain [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, August 23, 2007 1:39 PM Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
rebuilt by Bosch, I was told. Luther On Thu, 23 Aug 2007 14:12:07 -0500, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: Bought them from Rusty, whatever he sells. --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Alex Chamberlain [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, August 23, 2007 1:39 PM Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? Alex Chamberlain '87 300D Turbo et al. -- Luther KB5QHUAlma, Ark '87 300SDL (272,xxx mi) head case '85 Ford F250 6.9 diesel (x58,xxx mi) '82 300CD (166 kmi) '82 300D (74 kmi) getting donor engine-sold '85 300D (280,176) parts car sans engine ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Alex Chamberlain wrote: On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? New and used rebuilt injectors use the same NEW nozzles. The nozzles are made where ever Bosch chooses. I have had NO trouble with rebuilt injectors (I've NEVER bought a new one in 40+ years) providing you use a certified rebuilder. It ain't rocket science! Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
I was under he impression new ones were not matched by default... Could mismatched injectors lead to lowered economy or would better matched injectors give better economy? -Curt Date: Thu, 23 Aug 2007 14:12:07 -0500 From: Kaleb C. Striplin, work [EMAIL PROTECTED] Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Bought them from Rusty, whatever he sells. --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Alex Chamberlain [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, August 23, 2007 1:39 PM Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com - Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos more. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Correct, new ones are not matched and the spec allows for some error, but if you want the thing to run extra smooth at idle, you can take them in and have them matched ( some call it balanced, same thing ) to a much closer figure. Robert Curt Raymond wrote: I was under he impression new ones were not matched by default... Could mismatched injectors lead to lowered economy or would better matched injectors give better economy? -Curt Date: Thu, 23 Aug 2007 14:12:07 -0500 From: Kaleb C. Striplin, work [EMAIL PROTECTED] Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy To: Mercedes Discussion List mercedes@okiebenz.com Message-ID: [EMAIL PROTECTED] Content-Type: text/plain; format=flowed; charset=iso-8859-1; reply-type=original Bought them from Rusty, whatever he sells. --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Alex Chamberlain [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, August 23, 2007 1:39 PM Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy On 8/23/07, Kaleb C. Striplin, work [EMAIL PROTECTED] wrote: On my SDL I seem to be getting about 22 or so, I would think i should get more than that. I have what I think is too much black smoke and that is after new injectors. I dont think the alda has ever been adjusted on mine. NEW new injectors or rebuilt oldies? Don't the new ones have a bad rep (no longer made in Germany)? Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com - Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos more. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Curt Raymond wrote: I was under he impression new ones were not matched by default... Could mismatched injectors lead to lowered economy or would better matched injectors give better economy? Bosch rebuilds and new injectors are matched to within 10 bar. To match them closer requires that YOU or your shop test them! All of the injectors in an engine should be matched within 5 bar (if matched within 2-3 bar engine idle will be smoother - if the rest of the engine is in good shape). A 10 bar range will not have much effect on fuel economy, but the engine idle will be rough. If the injectors dribble or the spray pattern is well out of specifications economy will drop. An injector in a well maintained engine should last 150-250kmi! If the injection timing is more than a few degrees out of spec, economy and power will start to diminish. If the timer mechanism is damaged, economy drops. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor - Original Message - From: Marshall Booth [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Thursday, August 23, 2007 4:17 PM Subject: Re: [MBZ] 603 ALDA tweaking and fuel economy Curt Raymond wrote: I was under he impression new ones were not matched by default... Could mismatched injectors lead to lowered economy or would better matched injectors give better economy? Bosch rebuilds and new injectors are matched to within 10 bar. To match them closer requires that YOU or your shop test them! All of the injectors in an engine should be matched within 5 bar (if matched within 2-3 bar engine idle will be smoother - if the rest of the engine is in good shape). A 10 bar range will not have much effect on fuel economy, but the engine idle will be rough. If the injectors dribble or the spray pattern is well out of specifications economy will drop. An injector in a well maintained engine should last 150-250kmi! If the injection timing is more than a few degrees out of spec, economy and power will start to diminish. If the timer mechanism is damaged, economy drops. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Clogged air filter? On Thu, Aug 23, 2007 at 04:24:14PM -0500, Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same Isn't it possible for the valve to get stuck open? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On 8/23/07, John Robbins [EMAIL PROTECTED] wrote: Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same Isn't it possible for the valve to get stuck open? Mine did once. The only permanent cure is to remove the stupid thing entirely or (for the stealth look) block it off on both sides. Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
its brand new Kevin wrote: Clogged air filter? On Thu, Aug 23, 2007 at 04:24:14PM -0500, Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 94 E420, 92 300D, 92 250D Turbo, 92 300E 4Matic, 91 300D, 90 420SEL, 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro, 81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
I dont know, I guess. Will that cause black smoke? What kind of smoke does a stuck egr cause? Guess I need to pull it and block it off. John Robbins wrote: Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same Isn't it possible for the valve to get stuck open? ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 94 E420, 92 300D, 92 250D Turbo, 92 300E 4Matic, 91 300D, 90 420SEL, 89 560SEL, 89 260E, 87 300SDL, 87 300TD, 85 380SE 5.0 Euro, 81 240D, 81 380SLC, 80 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
You are way low on milage -- I get 30 in mixed driving with the AC attempting to cool the car in 100 degree heat! Check injection timing, dragging brakes (especially rear) and tranny slip. Peter ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
On 8/23/07, Peter Frederick [EMAIL PROTECTED] wrote: You are way low on milage -- I get 30 in mixed driving with the AC attempting to cool the car in 100 degree heat! Check injection timing, dragging brakes (especially rear) and tranny slip. Peter, are you talking to me or to Kaleb? (124 vs 126) I have NEVER seen 30 mpg in either this car or the previous '87 300D I owned, except on one tank that was 100% highway driving, on the flat, at a virtually constant 75 mph. Alex Chamberlain '87 300D Turbo et al. ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
To you, Alex! I routinely get 31-32 with low AC use since I replaced the head gasket (need to get the new head installed once I get the AC going on my Mom's TE). Highway similar unless I go over 70, when it drops to around 29. I'm usually a fairly gentle driver, but have a couple spots where I make some smoke. Pull your rear brake pads and check the calipers -- I'm betting they are stuck (I've had to free mine up a couple times, and will be rebuilding the calipers next time I do work back there. My brother's SDL runs 26-28 on the highway. Peter ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
John Robbins wrote: Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same Isn't it possible for the valve to get stuck open? If a valve sticks open the piston hits it and often breaks the cam shaft. That can ruin your day. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same To assure it's NOT the EGR you must block it off with a plate. What you are doing does NOTHING if the EGR is broken and hanging open. Small changes in timing (several degrees) don't seriously increase smoke but if the chain has stretched more than 4 degrees smoke can result and power will be down (but measuring chain stretch is a breeze). If the ALDA has broken, you will have excessive smoke (and you can't adjust it). You will have smoke if injector(s) dribble, have rotten spray pattern or are way out of the proper pop pressures. A cracked head or head gasket CAN do it too. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Speaking of new vs. rebuilt, Rusty is selling NEW Chinese importa W123 rear axles for $150 and rebuilt for $199 + core charge. Tom says the new ones haven't had any problems. Both have the same warranty. Anybody tried one of these new axles from the mainland? 1983 300D, torn CV boot. On 8/23/07, Marshall Booth [EMAIL PROTECTED] wrote: John Robbins wrote: Kaleb C. Striplin, work wrote: OK, so why do I have too much black smoke? Is my timing off? Is my EGR messed up? I unhooked the EGR and plugged the vac line but still the same Isn't it possible for the valve to get stuck open? If a valve sticks open the piston hits it and often breaks the cam shaft. That can ruin your day. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED] ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 603 ALDA tweaking and fuel economy
Peter Frederick wrote: I'm usually a fairly gentle driver, but have a couple spots where I make some smoke. I think that has quite a bit to do with it! My mileage on my SD ranged from 19-28 depending on how I drove. I have a bunch of receipts I need to calculate the mileage on, but I was getting 29MPG in my 300D 2.5T with leaky fuel return lines. :) John ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
