Low engine speed during high pressure test

[Rawze]

I have also seen in the past, some procedures on quickserv I think for determining fuel return leak rate coming from the fuel pump, head, and other components without having to take too many thing apart. Things like removing the fuel return line from the head and checking flow, etc.

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I have seen Mr. Hag use the one mentioned here a few times...
http://rawze.com/forums/showthread.php?t...56#pid2556

I think he just tests them one at a time with it using a fitting right to each injector. Maybe he can chime in, he tracks down internal fuel leaks quite a lot.

Just throwing some things I have seen out there that may be helpful.