1stGen.org

by **pulltilbroke** » Wed Apr 02, 2008 9:19 pm

today I noticed the hg was leaking down the side of the block checked to see if their was water in oil and vice versa looked good
Just wondering if I retorque head to 125 and turn the pump down a bit if it will be ok til I get a gasket

Drove it 20 miles home after i noticed it, topped off the rad, and kept boost under 10 and it didnt leak all the way home

BTW truck runs fine no unusaual smoke and the gasket is only 1 year old

by **dpuckett** » Thu Apr 03, 2008 10:39 am

Were the head and block perfectly flat?
What did you originally torque the bolts to when installed?
Have you done any retorques?

Daniel

by **pulltilbroke** » Thu Apr 03, 2008 4:34 pm

The head was flat, I torqued it to 95 and have never retorqued it

The bolts also passed the ring test and were in spec on the stretch gage

by **dpuckett** » Thu Apr 03, 2008 4:42 pm

The book calls for 93ft-lbs (or thereabouts), then another 90deg. Or, you can go to 125ft-lbs on all of them as a final step. That way, you KNOW they are all evenly torqued. Joe Donnelley has noticed that the torque + angle method isnt always consistent in end torque on the bolts.

I'd bet that is part of your problem.

DP

by **PToombs** » Thu Apr 03, 2008 4:48 pm

Don't do torque turn on the early trucks. The early FSM says to torque only. We did torque turn on Greg's truck, and I think that helped stretch his bolts. The later bolts are beefier.
I would do a retorque and try it. Nothing to lose! ;-)

by **pulltilbroke** » Thu Apr 03, 2008 4:54 pm

So will the early bolts take 125 pounds

by **cummins king** » Thu Apr 03, 2008 8:16 pm

yes, and you probaly could go to 135 and be fine

by **pulltilbroke** » Thu Apr 03, 2008 8:48 pm

Thanks for the help
One more thing retorque hot or cold?

by **dpuckett** » Sat Apr 05, 2008 4:28 pm

PToombs wrote:....The early FSM says to torque only....

I'll have to double check, but I think my 90 FSM/ diesel supplement says torque plus angle. I think that is how I did my 91.

DP

by **pulltilbroke** » Sun Apr 06, 2008 1:56 am

Problem solved with a new .020 overthick gasket and some new bolts torqued to 130

by **MunK** » Wed Apr 09, 2008 6:19 am

pulltilbroke wrote:Problem solved with a new .020 overthick gasket and some new bolts torqued to 130

Ya ready to do one of mine now? I think I have a leaker as well.

NoRM
who might get a running crew cab on the road some day

by **pulltilbroke** » Thu Apr 10, 2008 12:20 am

MunK wrote:
pulltilbroke wrote:Problem solved with a new .020 overthick gasket and some new bolts torqued to 130

Ya ready to do one of mine now? I think I have a leaker as well.

NoRM
who might get a running crew cab on the road some day

Sure with some help it would probly only take about 4-5 hours

1stGen.org

Headgasket trouble

Headgasket trouble

Who is online