Retorque head bolts - two questions

DrCharles · Jul 19, 2018

Tighten it 'til it strips, then back off 1/4 turn?

I suspect you are right about the cause since you carefully cleaned out the holes. If your studs have hex broaches, an Allen wrench will keep them from accidentally rotating. If not, maybe install them with Loctite after backing off from hand-tight as you describe...

Garbage_Mechan · Jul 20, 2018

Actually for me the head gaskets seeping coolant at the rear on a 7.3 is not a big deal.
I recall back when these trucks were new I had a big fight with Ford over how much coolant a head gasket can leak to the outside before it is warranty.

Garbage_Mechan · Jul 20, 2018

I thought the answer was zero but Ford didn’t LOL

The_Josh_Bear · Jul 20, 2018

Wow geez that's pretty lame. How long did it leak until you got it fixed?

Tristan · Jul 20, 2018

Thewespaul said:
If there’s contamination in the bottom of the hole, which there always is, you run a good chance of breaking the block there.

@IDIoit had this happen to with his stud girdle where is it basically exploded the block around the main cap bosses because there was some amount of contamination still in the hole, even after he cleaned and prepped he threads thoroughly. It’s not impossible to do it one bolt at a time, but the only time I’ve seen people do it successfully was on a newer Cummins engine with an mls gasket.

Wes, didn't you do the one at a time head stud replacement? Thought I remembered that... maybe it was someone else. Used a bottoming tap on an extension to clean the holes?

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Thewespaul · Jul 20, 2018

Tristan said:
Wes, didn't you do the one at a time head stud replacement? Thought I remembered that... maybe it was someone else. Used a bottoming tap on an extension to clean the holes?

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Wasn’t me

Retorque head bolts - two questions

DrCharles

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Garbage_Mechan

Garbage Mechanic

Garbage_Mechan

Garbage Mechanic

The_Josh_Bear

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Tristan

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Thewespaul

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