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DIY Guru
96 Ranger-stock
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637 Posts
Discussion Starter #1
Broken exhaust stud repair.



I had a cylinder head come to the shop, it had a bad drilled exhaust stud.
Whoever tried to remove the broken stud before, did not do the best of jobs.
Part of the old stud was still in the hole. Along with part of an EZ out.




I took a die grinder with a carbide burr and ground out the stud and EZ out.
I was left with this for a hole., I knew a simple Heli-coil would not fix it.


So I made a bushing to repair it.

The head casting was dilled and tapped for a ½ x 13.

Sensitive content, not recommended for those under 18 Show Content





Next I installed a set screw. You could also use the threaded part of a bolt.



Use “Green locktite”



 

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DIY Guru
96 Ranger-stock
Joined
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637 Posts
Discussion Starter #2
After about an hour, the locktite is set up. Drill the set screw .2660, then tap for 8mm x 1.25


Next fit the stud.



The customer should not have any exhaust alignment issues of the exhaust manifold now.
 

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DIY Guru
96 Ranger-stock
Joined
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637 Posts
Discussion Starter #11
What is different about the green loctite?
Green lock tight is a penetrating, sleeve retaining grade.

When you absolutely positively do not want it to come out.
 

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2,638 Posts
Ok Trans.... what am I supposed to see? the peened in bearing?
Yup. That particular bearing likes to walk out, when it does it causes problems. Known solution is to stake the shit back in so it won't walk out again.
 

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DIY Guru
96 Ranger-stock
Joined
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637 Posts
Discussion Starter #15
Ok gotcha.....

Knurl the od of the bearing?

But if that is the fix rock on .... just not pretty.
 
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