Posted by Doc Larry on September 04, 2007 at 05:33:53 from (216.146.101.227):
In Reply to: MD injector pump posted by Doug N on September 03, 2007 at 11:29:50:
Doug,
The transfer or lift pump supplies fuel at low presssure to a master plunger that delivers fuel at much higher pressure to the injectors. What you're describing sounds much more like a problem on the high pressure side, or possibly a timing issue as you mentioned. You definitely should get some smoke under load. I think the timing procedure is given in the owner's manual if you have one. If not, a fairly detailed explanation is on either this site or the Red Power site if you do a search of the archives. Sorry I can't remember which.
Assuming you've done all the filters and checked out the scavenging valve, you may end up having to get the pump checked out. I got lucky and found a good used one, cheap, after buying two that were worn out.
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