jackbombay
Top Post Dawg
Today I was running some Vag logs and at about 4300 RPM and WOT the car hiccuped as if the fuel filter was plugged, I pulled over and the fuel line had not a single bubble in it (I have a PD lift pump), proceeded to drive home and the hesitation got worse, EGTs went up a bunch, so I checked the timng as I had Vag-com running,
It was idling at 700*F on the EGT gauge and stumbling as well, I turned it off and back on, and the idle was at least smooth and the EGT gauge was falling, it bottomed out at 450, I let it go for a few minutes then shut it down and corrected the timing, the bolts on the sprocket were not loose in any way, the hub was torqued to spec by diesel fuel injection in Portland Oregon, so I doubt that moved.
any Ideas on what could have cause this? I originally torqued the IP sprocket bolts to 20 lb/ft, too little? Should the 11mm get a few more lb/ft? I did torque them to 25 this time, fwiw. I'm going to put a little nail polish on the hub bolt and the sprocket bolts so if it happens again I'll be able to tell what moved, if anything.
Thoughts, comments?
It was idling at 700*F on the EGT gauge and stumbling as well, I turned it off and back on, and the idle was at least smooth and the EGT gauge was falling, it bottomed out at 450, I let it go for a few minutes then shut it down and corrected the timing, the bolts on the sprocket were not loose in any way, the hub was torqued to spec by diesel fuel injection in Portland Oregon, so I doubt that moved.
any Ideas on what could have cause this? I originally torqued the IP sprocket bolts to 20 lb/ft, too little? Should the 11mm get a few more lb/ft? I did torque them to 25 this time, fwiw. I'm going to put a little nail polish on the hub bolt and the sprocket bolts so if it happens again I'll be able to tell what moved, if anything.
Thoughts, comments?