On Mon, Oct 19, 2009 at 9:11 PM, Peter Frederick <psf...@earthlink.net>wrote:
> White is unburned fuel, so it's not igniting for some reason. > > Just because an injector is new doesn't mean it's working right -- I've had > to take one apart to get the crud out that was making it leak, for instance, > and it's always possible something got in the pipes. > True - however it ran the same with the original injectors as it does with the new ones - seems unlikely that the new set had the same issue that the old one did, though stranger things has happened. > > If it knocks at low rpm without smoke, and runs fine above about 1500, it's > likely a leaking seal ring on the pressure valve holder. They don't always > seal properly even when installed right, it seems. > Where is this pressure valve holder? I'm guessing that it's not the same as the delivery valve, whose seals we replace? > > The other possibility is a dead tappet so a valve isn't opening properly. > Makes the engine run funny. > Now, that could be - perhaps it has enough pressure to keep it from rattling, but not enough to properly open the valve? > > Peter > > -- > OK Don > CONSERVATIVE, n. A statesman who is enamored of existing evils, as > distinguished from the Liberal, who wishes to replace them with > others. > The Devil's Dictionary > Ambrose Bierce > > _______________________________________ 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