HI, I want to thank all of you who responded to this dilemma.. I want to address some of the issues that were brought up.
1. Fred Moir <fred.s...@verizon.net> wrote: "When installing a pump the arm must be tilted up whilst being inserted before being bolted down. I suppose that the chain sprocket could have come loose from the camshaft, thus letting the fuel pump operating disc flop loose." Fred , I have sent you and Peter four pictures of the fuel pump so you can see what it looks like. In order to operate the pump, the lever must move downward. If the lever is tilted up, wouldn't this put the lever on top of the cam disc? The flat part of the lever is the top side, the underside has two narrow flanges. Before installing the pumps, I placed some grease on the top, flat side of the lever. When I took them out, the grease pattern showed that something had flattened the grease on the top, showing that it was in contact with something. It doesn't tell me if there was movement, however. I am suspicious that the disc is not turning, as that would explain a few observations. If the chain sprocket came loose, or if the disc is loose, would starting the engine in that condition cause problems? Much as I want to now start the engine (with an electric fuel pump), I fear I may do damage. 2. Peter Frederick <psf...@earthlink.net> wrote: "- - -but it's easy to install them so that the cam doesn't move the pump lever, forgetting that it is pushed upward from below rather than down from above. On that engine, the lever sits on TOP of the cam, not underneath, and it's possible to get the lever on the side of the cam when installing it." "It is also possible that the cam is loose on the camshaft drive gear, also a known problem from ages past. The chain is the crankshaft to camshaft silent roller chain. They are never really tight, but loose and sloppy can cause it to jump a tooth, not a good thing." Peter, although I keep wondering if I have incorrectly installed the pumps both times, I don't see how the lever can sit on top of the cam. Am I seeing this correctly? Another question - Do you see a problem starting the engine if something is amiss inside? Jerry 240D 72 Ford F250 __________ Information from ESET Smart Security, version of virus signature database 7054 (20120414) __________ The message was checked by ESET Smart Security. http://www.eset.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
