Harry, Rough idle can be caused by internal leak at copper washer OR by worn elements inside the delivery valve. I suspect that you really have to know what you are looking for to identify worn elements inside the DV; new DV are pricey, but for the novice a strategy may be to purchase one and use it for comparison purposes? Obviously there are other causes for rough idle that also need to be investigated (fuel filters, air leaks, bad injectors, carbon in pre-chambers, valve adjustment on older engines, EDS problems on newer engines, compression, etc.)
Max -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of harry watkins Sent: Wednesday, October 14, 2009 1:29 AM To: Mercedes Discussion List Subject: Re: [MBZ] W124 Motor Mounts & Related Problems Larry wrote: > Additionally, they tell me the Injector Seals are leaking - not > internal seals but the O-Ring and copper washer that fits inside the > line where it exits the IP - so the IP doesn't need to be replaced - > only the metal injector lines need to come off and a fitting inside > the IP removed from each injector exit port. I plan to do it myself > and from what little I've seen it doesn't look too bad. Don't know > how I would have found these seals were bad! > > They tell me the seals leak internally & cause the problem I > described - rough idle at idle after fully warmed up. Boy, this messes with my mind. How can one determine that a delivery valve has an internal leak? I could understand if they had looked at the parts and found some wear but that would have required a tear down. IMHO, if you go in there for any reason, you should replace the o-rings, seals and springs, perform the three step torque procedure and hope for the best. Anyone know how they do that? Thanks Harry _______________________________________ 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://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://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
