The fuel injection pump has been tested. It's working perfectly. Shit.
After discussions with Jim Fols, who has tested the pump, the working hypothesis is as follows:
1) James replaces fuel lines and one of them has an air leak in it.
2) James runs electric booster pump to decrease fuel supply line vacuum and stop air leak. This works.
3) BUT, the fuel injection pump is an earlier model which is designed to run under vacuum. On occasion (twice now...) sufficient positive pressure builds up to allow the drive shaft seal, which is designed to seal against a vacuum, to start spurting fuel, filling the sump.
So, plan is that I will collect the pump back off Jim when I'm passing through LA at the end of next month, hook everything back up, vacuum test the fuel lines to find the damn air leak and fix that, and then run this puppy hard without the booster pump and see if we have any more problems.
No comments:
Post a Comment