i had a bad head gasket so i put a new one in it (stock for now) didn't do the valves just left them where they was set at. it seemed to run fine till i shut it off and it wouldn't start no matter what i did. reset all the valves and it started and ran better than ever. put a clutch in today everything was going great so it seemed took it for a short drive, ran great, went to take a little longer drive and as luck has it something else goes wrong. i dunno what it is, i got ideas but i'm not for sure. i was doing approx. 50 mph started to ease into it to pass a car, got out beside the car and it just started popping out the exhaust kinda like i had a jake brake on it or something, i hit the clutch and it died and will not start now. it just cranks and smokes white real bad. Any clues? First thing that came to mind is timing but i don't know.

 

did you set the valves with the engine warm? let her set over night and check them again...

(learned that the hard way ^ )

 

no it had been sitting for 3 days when i set them. i was wondering about them also, i'll check them in the morn and see what i find. would the valve make it pop like that? as it was being chained home i said what the heck and threw it in gear to see if it would run and it did it just popped like crazy

 

Well i checked all the valves and they seem to be set right. Intake 10 and exhaust 20. Also pulled the front cover checked the timing there and at the pump pin it all looks good. thinks its possible it just blew that new gasket right back out? im clueless at this point.

 

Retorque the HG yet?

 

No not yet thought retorque was at like 500 miles or so.... i've only had it running for prolly an hour total since gasket change.

 

Guess the head is comin off again.... checked the vales, timing and head torque. All seems well so i guess it just leaves the gasket... only thing i can think off any other ideas?

 

If you think the heads not the problem, disconnect the pre-heaters and try an alternative fuel source. You could have a fuel issue, either supply to or from the pump. Crank sensor is a possibility too.

 

Crank sensor? Where's that located?

 

It's above the harmonic balancer pulley at 12:00. It will have 2 wires running to it and is about the diameter of a nickel.

 

On your's, I don't know for sure. Should be either right on the front, next to the harmonic balancer or on the rear. Check any wiring that you had to remove to get the head off. It might be something as simple as a bad connection. Run down all the simple stuff before you start pulling parts.

 

Could it be the fuel shutoff switch?

 

would a compression test show the head gasket is blowen or not befor pulling head agin ?

fuel delivery problem maby ?

 

i was thinkin head but i don't think it could be that since the last time and all the other trucks i have heard of...the truck still ran with a blown gasket. someone else suggested fuel also so i checked that today found a small leak that i fixed and what looked to be a clogged fuel filter so i changed that also. i now have a solid stream coming out the pump side of the fuel filter and i cracked #1 injector line while cranking and it shot to up to the hood so i assume that it should have plenty of fuel. also checked all the valves again still look good. i'm really stumped with this thing she trys to start but just wont i don't understand

 

Well we thought it might have been gas or water or something in the fuel. So i did the line in a can thing and it seems to try to start better than before. It's blowin a gray'ish (sometimes almost black) smoke now but still no start.... Could i have bent some valves due to being so tight after the hg change? I gutted the AFC after the hg change also, could that have hurt the pump? I've tryed to pop start it ad all it does is bellow like blueish, white, gray smoke. Someone got an idea?