Re: [MBZ] OM603 introduction - observations
Thanks for your advice. Got the car and have these observations 1. Engine grumbles/protests below 1600 rpm ( under load greater than approx 30% ) 2. Steering does not centre correctly especially when cold. It tries to centre but does not g o all the way - could this be a steering box overhaul?? Peter -Original Message- From: Kaleb C. Striplin [mailto:[EMAIL PROTECTED] Sent: 03 September 2007 16:30 To: Mercedes Discussion List Subject: Re: [MBZ] OM603 introduction I dont really know much about the non-turbo 603 since we do not get them in the US. I do know on the turbo 603 the only real problem area to watch out for is cracking heads. Not sure if the non-turbo has that problem or not. Peter Merle wrote: I have just purchased a W124 non turbo 300D ( OM603 ) and am keenly awaiting deliverly later today. Having grown up with OM617's ( and OM621 ) this is a major cultural adjustment for me . What are the important issues with these engines eg vacuunm pumps , timing chains , injector nozzles - ie how long do thaey last /when should they be changed. Is there a way of measuring chain stretch as in in Om617? Are there any online resources for the maintaince of these cars? 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 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 ___ 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] OM603 introduction - observations
2. Steering does not centre correctly especially when cold. It tries to centre but does not go all the way - could this be a steering box overhaul?? Could be somebody over-tightened the steering box. Might not hurt to loosen it a bit and see what happens. -- Jim ___ 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] OM603 introduction - observations
Which direction do you loosen it , anticlockwise ? I know some boxes work in the opposite sense to what one would expect. Peter -Original Message- From: Jim Cathey [mailto:[EMAIL PROTECTED] Sent: 04 September 2007 15:00 To: Mercedes Discussion List Subject: Re: [MBZ] OM603 introduction - observations 2. Steering does not centre correctly especially when cold. It tries to centre but does not go all the way - could this be a steering box overhaul?? Could be somebody over-tightened the steering box. Might not hurt to loosen it a bit and see what happens. -- Jim ___ 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] OM603 introduction - observations
Which direction do you loosen it , anticlockwise ? I know some boxes work in the opposite sense to what one would expect. Clockwise loosens it. -- Jim ___ 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] OM603 introduction - observations
Peter Merle wrote: Thanks for your advice. Got the car and have these observations 1. Engine grumbles/protests below 1600 rpm ( under load greater than approx 30% ) 2. Steering does not centre correctly especially when cold. It tries to centre but does not g o all the way - could this be a steering box overhaul?? Subject: Re: [MBZ] OM603 introduction I dont really know much about the non-turbo 603 since we do not get them in the US. I do know on the turbo 603 the only real problem area to watch out for is cracking heads. Not sure if the non-turbo has that problem or not. Peter Merle wrote: I have just purchased a W124 non turbo 300D ( OM603 ) and am keenly awaiting deliverly later today. Having grown up with OM617's ( and OM621 ) this is a major cultural adjustment for me . What are the important issues with these engines eg vacuunm pumps , timing chains , injector nozzles - ie how long do thaey last /when should they be changed. Is there a way of measuring chain stretch as in in Om617? Are there any online resources for the maintaince of these cars? Chain stretch is measured exactly the same as it is measure in OM61x engines. Chains in OM60x engines wear more slowly - maybe 1 deg every 100kmi using conventional oil changed at recommended intervals (Mobil 1 halves chain wear). Max allowable stretch is 4 deg. Head in the non-turbo 603s are NOT subject to,the same head cracking issues that the turbos experience. The head gasket MAY leak up front above the chain tensioner (5 of the seven 60x engines I've owned leaked here - some a little - some a lot - only cure is a new head gasket) or blow out between the #1 cylinder and the chain vault (makes MUCH smoke and drinks oil when this happens), but this only happens to a few percent of engines. The engine itself is VERY durable and long lived if properly maintained. The lifters will clatter starting at about 100kmi unless you use a synthetic oil. Changing to a synthetic will usually quiet clatter but it may take 10-20kmi. Changing lifters will usually NOT keep the lifters quiet if you continue to use conventional oil! I've seen them get noisy within a few weeks! Injectors and glow plugs last about as long as they did in OM61x engines (150-250kmi). 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
