I have both the haynes and chilton 82 - 92 Repair manuals ,
I just did the heads on my car and have a problem with fuel dumping into the crank case , the chilton book reads 40 ft lbs +90 turn and the Haynes states 70 ft lbs , This is an 89 2.8 MPFI . Could someone who has done this before please tell me which is right .
Also since the car has not been run more than just a few minutes and nothing has been taken apart , if the 70ft lbs is the correct one could they just be torqued futher or would it be better to just replace the head gaskets

 

41 ft lbs + 90*, I think, is the same as 70 ft lbs or close to it. one way to check, torque to 41 ft lbs, the reset the wrench for 70 ft lbs and see if it reaches 70 by the time you turn the bolt 90*, i had this dilema, are you using new bolts? and did you put some type of sealer on the threads? And if fuel is getting into the crank case....A. your piston rings are gone. B. you are running very rich or C. your pcv valve is gone Did this happen after you did the heads? Wrong torqeing of the head bolts wouldnt cause fuel to get into your oil

 

Used the original bolts , was told they would be ok
did use sealer on them
did'nt have the problem with the fuel in the crack case before the work was done , thats why I think it's a gasket problem

 

what did you torque to?

 

40ft lbs + 90 turn

 

can you contact me on aol instant messenger?, talking this was is a pita

 

sorry don't have aol instant messenger

 

how do you know youre getting fuel in your crank case?

 

Checked the oil and it smelled like gas , and was really thin like water , I drained the oil pan and there was twice as much as what was put in , I know water would make the oil creamy and milky brown , This was Black
I know head gaskets keep the water out of the cylinders , and keep the exhaust from escaping into the motor but if they were not torqued right could it push fuel from the cylinder into the block

 

just out of curiosity, what "sealer" did you use on the headbolts? i have never heard of using that on any head bolts when ive done headgaskets before.

 

ARP thread sealer

 

hmmmm. never heard of using thread sealer on head bolts. those may be fun getting back out later on. did someone recommend using this on headbolts to you? just curious since ive never heard of it.

 

for the 2.8 it calls for using the sealer , when the engine is assembled at the factory they use sealer , not all engines call for it but I know the 2.8 does

Haynes 82-92 camaro Pg 2B-8
Chiltons 82-92 camaro Pg 3-23

 

the only way i could see u getting that much fuel in the oil,is if u have a injector that is stuck wide open

 

He's using a thread sealer, NOT a thread locker (like Permatex Red or Blue). This has Teflon, to stop the water from coming up. The head bolts go into the water jackets. Plus this has been beatin' down before but here goes... 60* motors use torque-to-yield bolts (stretch bolts). That is why you go 90* more, that stretches the bolt. They should be replaced, of course you can re-use them, but the torque value can NOT be the same...

 

Exactly true. Tightening the head bolts will not keep you from getting fuel into the crankcase...period. Have you been cranking it without it starting? That'll cause it too. Get yourself a pressure guage and check for a drop after the system has been primed.

 

My problem turned out to be a bad intake gasket , had a mechanic from where I work come by and look at it. He said with the amount of fuel getting into the crankcase it was'nt injectors .So tore it back down and sure enough was the gasket. Got it all back together now and runs better than it ever has .

 

Congrats