Re: [MBZ] Noisy 300D engine
Peter Merle wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? PEter Injector spray pattern, injection pressure and low compression out of specification ALL will result in louder to much louder compression noise. Worn/damaged valve train parts can make a lot of noise too. Marshall -- Marshall Booth Ph.D. Ass't Prof. (ret.) Univ of Pittsburgh School of Medicine [EMAIL PROTECTED]
Re: [MBZ] Noisy 300D engine
Injectors are new so its not that - sound is even so its not one single injector . Could it be burnt through prechambers?? - if the nozzles are too large I guess it would more closely approximate a Direct injection configuration. Timing tensionaer is also new so it should not be th echain flapping about. PEter -Original Message- From: Kaleb C. Striplin [mailto:[EMAIL PROTECTED] Sent: 20 November 2006 03:58 PM To: Mercedes Discussion List Subject: Re: [MBZ] Noisy 300D engine Injectors are probably dirty, engine carboned up etc. May need new injectors. Peter Merle wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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 -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net ___ 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] Noisy 300D engine
Peter, I would think that the engine may be carboned up and need a good run. However, new injectors WILL be noisier than older ones. Although you may prefer the smoother sound of older injectors, they are not doing them any favours. If you're hearing a nice sharp clack clack clack, then it is your new injectors doing what they need to do. Jeff Zedic Toronto/London
Re: [MBZ] Noisy 300D engine
Peter Merle wrote: Sound a bit like a direct injection truck engine of the 80's . Any thoughts? High injector opening pressures will make it noisier, and new injectors will be a lot louder than 20 year old worn injectors. Advanced timing will make it louder. I'm not sure as to the exact cause of injector nailing, which would likely be in one or two cylinders, not all five evenly, but it sounds like there's a little guy in the engine with a hammer. Nailing can usually be cured, at least temporarily, by running an injector cleaner like diesel purge through it. Mitch.
Re: [MBZ] Noisy 300D engine
Injectors are probably dirty, engine carboned up etc. May need new injectors. Peter Merle wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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 -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] Noisy 300D engine
My S350 was nailing horribly when I first got it. The injector springs were worn causing them to fire too soon. A set of rebuilt injectors quieted things down nicely. -Dave Walton 87SDL, 94S350, 99E300 On 11/20/06, Peter Merle [EMAIL PROTECTED] wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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] Noisy 300D engine
Mine does the nailing at idol when cold (well, cold for the desert...when I first start it in the morning when it gets down to 50 degrees) and then it will do the random one when driving at low speeds (in the neighborhood). Haven't ran purge through it in a year or soor is it something more you reckon? Bob Rentfro - Original Message - From: dave walton [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 9:51 AM Subject: Re: [MBZ] Noisy 300D engine My S350 was nailing horribly when I first got it. The injector springs were worn causing them to fire too soon. A set of rebuilt injectors quieted things down nicely. -Dave Walton 87SDL, 94S350, 99E300 On 11/20/06, Peter Merle [EMAIL PROTECTED] wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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 ___ 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] Noisy 300D engine
What does Injector Nailing Sound Like? Jim - Original Message - From: dave walton [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 11:51 AM Subject: Re: [MBZ] Noisy 300D engine My S350 was nailing horribly when I first got it. The injector springs were worn causing them to fire too soon. A set of rebuilt injectors quieted things down nicely. -Dave Walton 87SDL, 94S350, 99E300 On 11/20/06, Peter Merle [EMAIL PROTECTED] wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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 ___ 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] Noisy 300D engine
James Zavesky wrote: What does Injector Nailing Sound Like? It's a heavy knocking sound, once every time the cylinder fires (so once for every two crank revolutions.) It sounds a lot like pounding a nail into something solid with a hammer, hence the name. It also sounds remarkably like rod knock -- I've heard a couple of stories of people taking VW diesels apart, looking for a bad rod bearing, when the problem was actually a bad injector.
Re: [MBZ] Noisy 300D engine
great V12 - 12 injectors @ $147.50 equals a lot of money but still less than buying the car new jim - Original Message - From: David Brodbeck [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 2:31 PM Subject: Re: [MBZ] Noisy 300D engine James Zavesky wrote: What does Injector Nailing Sound Like? It's a heavy knocking sound, once every time the cylinder fires (so once for every two crank revolutions.) It sounds a lot like pounding a nail into something solid with a hammer, hence the name. It also sounds remarkably like rod knock -- I've heard a couple of stories of people taking VW diesels apart, looking for a bad rod bearing, when the problem was actually a bad injector. ___ 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] Noisy 300D engine
So, I've supsected my 300d has this problem and it's the next repair I do (my car sounds like a panzer tank sometimes, compaired to some of the other 300d I've compaired it to.. I have not started the research on this procedure. but, is it as simple as taking out the old injectors and putting in new ones? That almost seems TOO easy... (unlike the timmeing chain that was 11 degrees off, yet when replaced, didn't seem to make the car run any better, but was a great learning expereince!) Anyway, just curious. proabaly won't do this till a few months into the spring time... --- James Zavesky [EMAIL PROTECTED] wrote: great V12 - 12 injectors @ $147.50 equals a lot of money but still less than buying the car new jim - Original Message - From: David Brodbeck [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 2:31 PM Subject: Re: [MBZ] Noisy 300D engine James Zavesky wrote: What does Injector Nailing Sound Like? It's a heavy knocking sound, once every time the cylinder fires (so once for every two crank revolutions.) It sounds a lot like pounding a nail into something solid with a hammer, hence the name. It also sounds remarkably like rod knock -- I've heard a couple of stories of people taking VW diesels apart, looking for a bad rod bearing, when the problem was actually a bad injector. ___ 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 Sponsored Link $420k for $1,399/mo. Think You Pay Too Much For Your Mortgage? Find Out! www.LowerMyBills.com/lre
Re: [MBZ] Noisy 300D engine
The best way to check the problem is to grab your 17 mm open end wrench and crack #1 injector line, if the sound goes away-that's your problem. If not, tighten the injector line and wait for the engine idle to smooth out, then repeat on #2, #3, etc. until you find the source. If none of them quiet the sound, the problem is deep in the engine. -- Luther KB5QHUAlma, Ark '87 300SDL (270,491 mi) head case? '83 300SD (241 kmi) '82 300CD (162 kmi) '82 300D (74 kmi) needs MAJOR engine work '85 300D (280,176) parts car Quoting James Zavesky [EMAIL PROTECTED]: What does Injector Nailing Sound Like? Jim - Original Message - From: dave walton [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 11:51 AM Subject: Re: [MBZ] Noisy 300D engine My S350 was nailing horribly when I first got it. The injector springs were worn causing them to fire too soon. A set of rebuilt injectors quieted things down nicely. -Dave Walton 87SDL, 94S350, 99E300 On 11/20/06, Peter Merle [EMAIL PROTECTED] wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? PEter
Re: [MBZ] Noisy 300D engine
that seems really straight forward. i might give that a try over the upcomming weekend. Now I'm starting to worry that I have bad rods! zoiks! ;-) --- Luther [EMAIL PROTECTED] wrote: The best way to check the problem is to grab your 17 mm open end wrench and crack #1 injector line, if the sound goes away-that's your problem. If not, tighten the injector line and wait for the engine idle to smooth out, then repeat on #2, #3, etc. until you find the source. If none of them quiet the sound, the problem is deep in the engine. -- Luther KB5QHUAlma, Ark '87 300SDL (270,491 mi) head case? '83 300SD (241 kmi) '82 300CD (162 kmi) '82 300D (74 kmi) needs MAJOR engine work '85 300D (280,176) parts car Quoting James Zavesky [EMAIL PROTECTED]: What does Injector Nailing Sound Like? Jim - Original Message - From: dave walton [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 11:51 AM Subject: Re: [MBZ] Noisy 300D engine My S350 was nailing horribly when I first got it. The injector springs were worn causing them to fire too soon. A set of rebuilt injectors quieted things down nicely. -Dave Walton 87SDL, 94S350, 99E300 On 11/20/06, Peter Merle [EMAIL PROTECTED] wrote: My one 300D engine ( In Gwagen ) is a lot noisier than the other I have in a W123 and this really came to a light when I came agross another 300GD over the weekend and its engine was probably a good 10db quiter than mine at idle. My tappets have been checked as has been th einjection timing. All is well with the engine as far as I know. It sounds healthy - just noisier that I guess it should be. Sould a bit like a direct injection truck engine of the 80's . Any thoughts? 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 http://perceptionfest.com Online Streaming Film festival Sponsored Link Mortgage rates near 39yr lows. $310k for $999/mo. Calculate new payment! www.LowerMyBills.com/lre
Re: [MBZ] Noisy 300D engine
yep we use Shell or Sunoco Premium in it RUns too strong, just has some valve train/injector noise May try a couple cans of Delco X66? injector cleaner, the aerosol can cleaned the MAS units perfectly. jim - Original Message - From: Mitch Haley [EMAIL PROTECTED] To: Mercedes Discussion List mercedes@okiebenz.com Sent: Monday, November 20, 2006 3:19 PM Subject: Re: [MBZ] Noisy 300D engine James Zavesky wrote: great V12 - 12 injectors @ $147.50 equals a lot of money but still less than buying the car new Injector nailing sounds like that in a diesel because it screws up the timing. If your V12 is a gasser with electric injectors, rod knock sounds just might be rod knock sounds. In which case, $1800 worth of injectors would be preferable. You are using premium petrol, right? ___ 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] Noisy 300D engine
snip If none of them quiet the sound, the problem is deep in the engine. Or all five injectors Rick Knoble '85 300 CD '87 190 DT
