Re: [MBZ] compression testing
Anyone have good advice on testing an old 300D 115 normally aspirated engine? Can look at how I did the Albatross: http://userweb.windwireless.net/~jimc/mb240d.html#6May2006 Am I correct that one must remove the injectors and use those holes for the tester? Glow plug holes are easier. What happens with the diesel fuel that should then be shooting out all over at high pressure when one is testing? How does one stop that? Knob-start or key-start? Either way lash the IP's shutoff lever into the off position. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
I just remember how I do 61x engines thru the glow plug hole. I remove the entire injector line assembly and keep the ports on the ip covered with a rag to keep fuel from shooting way up while cranking. On 3/4/2011 3:31 PM, Rolf wrote: You need a 27mm deepsocket and it has to be really deep, the ones at autozoo will not do the trick. Kobalt from lowes did. I evenetually bought the hazet proper tool for the job. You ream anytime you take the gp out. I like using the injector holes as it requires less work IMO. The heat shields can be problematic to get out if they are stuck but usually turning over the engine will pop them out, watch it as sometimes they have quite the velocity. Engine should be warm and you should give it a full 8 cycles. I disagree with the statement about the quantity of fuel that comes out. It is certainly enough to spray high. Whatever happens make sure you dont get subcutaneous injection of diesel or you will have to have said appendage removed! -Rolf On 03/04/2011 04:01 PM, R A Bennell wrote: Thanks guys. Good to know. Anything else you can think of that I need to know? I think I bought the spacers, shields, whatever they are called that one puts in behind the injectors so would replace them too I guess. Any likelyhood that I will have trouble getting the injectors out? I seem to recall people talking about carbon etc. Or am I confusing that with the glowplugs? When does one use the reamer doodad? Does my engine have the removable pre-combustion chambers or whatevers behind the injectors (sorry but I am not sure that is what they are called). Do I recall someone talking about slidehammers to remove? Why would one remove them?? Lots of questions and very little knowledge except for what I hear on here as this is my one and only diesel and I do not have any local friends who have done this sort of thing. Randy On 04/03/2011 12:11 PM, Mitch Haley wrote: Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3481 - Release Date: 03/04/11 -- Kaleb C. Striplin/Claremore, OK 99 E430, 99 E320, 95 E300, 94 S500, 92 500SEL, 92 300SD, 92 300E 4Matic, 91 350SDL, 91 300D, 89 560SEL, 87 300SDL x2, 85 190D, 84 190D, 84 300D euro manny, 76 240D, 76 300D, http://www.okiebenz.com - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3483 - Release Date: 03/05/11 ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
It depends on the tester and the adapter you are using. They have adapters for either the glow plug or injector holes. You dont want the engine to start so you have to have the fuel shut off by holding down the stop leaver while cranking. You usually use a remote start switch for this or have someone crank from inside car while you are holding the leaver and checking the readings on the guage. On 3/4/2011 12:00 PM, R A Bennell wrote: The thread on the tick suggested compression testing and that got me to wondering about doing one. Anyone have good advice on testing an old 300D 115 normally aspirated engine? Am I correct that one must remove the injectors and use those holes for the tester? What happens with the diesel fuel that should then be shooting out all over at high pressure when one is testing? How does one stop that? I bought a compression tester a couple of years back but it is sitting in the tool box and has yet to be used. Randy ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3481 - Release Date: 03/04/11 -- Kaleb C. Striplin/Claremore, OK 99 E430, 99 E320, 95 E300, 94 S500, 92 500SEL, 92 300SD, 92 300E 4Matic, 91 350SDL, 91 300D, 89 560SEL, 87 300SDL x2, 85 190D, 84 190D, 84 300D euro manny, 76 240D, 76 300D, http://www.okiebenz.com - No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1204 / Virus Database: 1435/3483 - Release Date: 03/05/11 ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
On Fri, 04 Mar 2011 15:01:41 -0600 R A Bennell wrote: > I think I bought the spacers, shields, whatever they are called that > one puts in behind the injectors so would replace them too I guess. It's a good idea. > Any likelyhood that I will have trouble getting the injectors out? Usually they are no problem. > I seem to recall people talking about carbon etc. Or am I confusing that > with the glowplugs? When does one use the reamer doodad? You're confusing that with the glowplugs, which is when the reamer doodad (or a glow plug with its end mashed flat) is used. > Does my engine have the removable pre-combustion chambers or whatevers > behind the injectors (sorry but I am not sure that is what they are > called). Yes, it does have prechambers; it's an indirect-injection engine. > Do I recall someone talking about slidehammers to remove? Yes, the prechambers are what is difficult to get out. > Why would one remove them?? If they have been damaged in some way, typically cracking from using ether to start the car, or a damaged ball on the ball pin. I replaced all of the ones on our car on general principles (and the fact that whoever had the injectors out earlier did not put any injector heat shields in when he put things back together). > Lots of questions and very little knowledge except for what I hear on > here as this is my one and only diesel and I do not have any local > friends who have done this sort of thing. That makes it harder, but we are here to help. > > And if you put a mityvac on the shutoff solenoid or hold down the > > stop lever, there should be no fuel dripping. Good idea! Something you need to do if you are testing compression. Craig ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
Oh an you will need new injector return lines. A word of advice, but them about 1" longer than you need them to be. Then when it fails on you in the middle of nowhere with 200miles to the next diesel station you can simply cut the end off and put the hose back on... -Rolf On 03/04/2011 04:01 PM, R A Bennell wrote: Thanks guys. Good to know. Anything else you can think of that I need to know? I think I bought the spacers, shields, whatever they are called that one puts in behind the injectors so would replace them too I guess. Any likelyhood that I will have trouble getting the injectors out? I seem to recall people talking about carbon etc. Or am I confusing that with the glowplugs? When does one use the reamer doodad? Does my engine have the removable pre-combustion chambers or whatevers behind the injectors (sorry but I am not sure that is what they are called). Do I recall someone talking about slidehammers to remove? Why would one remove them?? Lots of questions and very little knowledge except for what I hear on here as this is my one and only diesel and I do not have any local friends who have done this sort of thing. Randy On 04/03/2011 12:11 PM, Mitch Haley wrote: Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
You need a 27mm deepsocket and it has to be really deep, the ones at autozoo will not do the trick. Kobalt from lowes did. I evenetually bought the hazet proper tool for the job. You ream anytime you take the gp out. I like using the injector holes as it requires less work IMO. The heat shields can be problematic to get out if they are stuck but usually turning over the engine will pop them out, watch it as sometimes they have quite the velocity. Engine should be warm and you should give it a full 8 cycles. I disagree with the statement about the quantity of fuel that comes out. It is certainly enough to spray high. Whatever happens make sure you dont get subcutaneous injection of diesel or you will have to have said appendage removed! -Rolf On 03/04/2011 04:01 PM, R A Bennell wrote: Thanks guys. Good to know. Anything else you can think of that I need to know? I think I bought the spacers, shields, whatever they are called that one puts in behind the injectors so would replace them too I guess. Any likelyhood that I will have trouble getting the injectors out? I seem to recall people talking about carbon etc. Or am I confusing that with the glowplugs? When does one use the reamer doodad? Does my engine have the removable pre-combustion chambers or whatevers behind the injectors (sorry but I am not sure that is what they are called). Do I recall someone talking about slidehammers to remove? Why would one remove them?? Lots of questions and very little knowledge except for what I hear on here as this is my one and only diesel and I do not have any local friends who have done this sort of thing. Randy On 04/03/2011 12:11 PM, Mitch Haley wrote: Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
My tester, and the snap-on tester I used go into the GP holes. In some cases, it is hard to test compression on #3 if the IP is set close to the head. There is not enough room to get the adapter in the hole and a hose on the adapter. This is the same on OM engines from 1959 up to the OM603 at least. I believe it is the same on the 606, but I am not sure about that. Thanks guys. Good to know. Anything else you can think of that I need to know? I think I bought the spacers, shields, whatever they are called that one puts in behind the injectors so would replace them too I guess. Any likelyhood that I will have trouble getting the injectors out? I seem to recall people talking about carbon etc. Or am I confusing that with the glowplugs? When does one use the reamer doodad? Does my engine have the removable pre-combustion chambers or whatevers behind the injectors (sorry but I am not sure that is what they are called). Do I recall someone talking about slidehammers to remove? Why would one remove them?? Lots of questions and very little knowledge except for what I hear on here as this is my one and only diesel and I do not have any local friends who have done this sort of thing. Randy On 04/03/2011 12:11 PM, Mitch Haley wrote: Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
Thanks guys. Good to know. Anything else you can think of that I need to know? I think I bought the spacers, shields, whatever they are called that one puts in behind the injectors so would replace them too I guess. Any likelyhood that I will have trouble getting the injectors out? I seem to recall people talking about carbon etc. Or am I confusing that with the glowplugs? When does one use the reamer doodad? Does my engine have the removable pre-combustion chambers or whatevers behind the injectors (sorry but I am not sure that is what they are called). Do I recall someone talking about slidehammers to remove? Why would one remove them?? Lots of questions and very little knowledge except for what I hear on here as this is my one and only diesel and I do not have any local friends who have done this sort of thing. Randy On 04/03/2011 12:11 PM, Mitch Haley wrote: Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
Max Dillon wrote: Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. And if you put a mityvac on the shutoff solenoid or hold down the stop lever, there should be no fuel dripping. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] compression testing
Randy, Very little diesel fuel will dribble out of the injector lines when cranking the engine with the fuel rack at the idle position. The injector is required at the end of that fuel line to build the pressure up for a quick high pressure spray. -Max From: R A Bennell To: Mercedes Discussion List Sent: Fri, March 4, 2011 1:00:44 PM Subject: [MBZ] compression testing The thread on the tick suggested compression testing and that got me to wondering about doing one. Anyone have good advice on testing an old 300D 115 normally aspirated engine? Am I correct that one must remove the injectors and use those holes for the tester? What happens with the diesel fuel that should then be shooting out all over at high pressure when one is testing? How does one stop that? I bought a compression tester a couple of years back but it is sitting in the tool box and has yet to be used. Randy ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] compression testing
The thread on the tick suggested compression testing and that got me to wondering about doing one. Anyone have good advice on testing an old 300D 115 normally aspirated engine? Am I correct that one must remove the injectors and use those holes for the tester? What happens with the diesel fuel that should then be shooting out all over at high pressure when one is testing? How does one stop that? I bought a compression tester a couple of years back but it is sitting in the tool box and has yet to be used. Randy ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
