headgasket failure

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Apr 15, 2009 | 11:24 AM

#11

94cummins12v

Thread Starter

Diesel Bomber

Joined: Jan 2008

Posts: 4,525

Likes: 103

From: Havre mt

there shouldnt be anything wrong with the head i spent alot of money on it to make it worth putting on

Apr 15, 2009 | 02:22 PM

#12

12valvetater

Diesel Bomber

Joined: Oct 2008

Posts: 1,474

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From: Pennsylvania

over size gaskets arent as strong as stock thickness maybe that has something to do with it?

Apr 15, 2009 | 04:35 PM

#13

392hemix

Diesel Wrench

Joined: Feb 2009

Posts: 528

Likes: 10

From: New Hampshire

Not to be a jerk but just because you spent alot of money on machine work doenst always mean it was done right. someone could have had an off day, and messed something up, did you check it b4you put it on....maybe the guy @ the machine shop has bad eyes...or the gasket could just be defected....I dunno, i have only built one engine and i have never really had that issue. the only time i had an issue with head gaskets is when i was younger i put a 04 hemi top end togeather and put the gaskets on the wrong bank.....got it all togeather filled it up and it leaked...not fun I hope you get it back togeather..

Apr 15, 2009 | 06:07 PM

#14

Beets

Diesel Enthusiast

Joined: Jan 2009

Posts: 194

Likes: 7

From: New Albany Indiana

Quote:

Originally Posted by BAD *** 1997 RAM 2500

i'm not going to say that there's nothing to that theory,but when metal heats up it expands,wich means the head would actually be tighter when hot.when it cools off it will shrink,but not smaller than orig.there might be a little to it,but i've rebuilt a few,and after i tourqed them they were there,i tried to re-tourqe them and they wouldn't,still doesn't hurt,i'm just saying,he may want to look a little further than just slapping a new gasket and trying a different method of tightening.

yea metal does expand and contract, but different metals expand and contract different amounts and at different temps, it could have been the thicker gasket too i would slap a stock gasket on it torque the studs in sequence warm it up torque it again and for the next couple weeks double check the torque and do so untill the studs no longer change in torque could be 2 weeks or 2 months it took 6 times before my brothers 24v with and oringed head and studs to stop changing then we have checked it every oil change since then

also have the head checked for flatness again. normally everytime you pop a gasket it will need resurface

Apr 15, 2009 | 11:55 PM

#15

94cummins12v

Thread Starter

Diesel Bomber

Joined: Jan 2008

Posts: 4,525

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From: Havre mt

i checked it and it is flat, you have to use a thicker gasket when you machine a head so the valves dont come in contact with the piston, thats why they make oversized gaskets