Thread sealant for bolts that protrude into water passages

[Justin V]

What do you guys like to use?

It looks like wifey's new jeep engine has one head stud the goes through to a water jacket in the block, and it is bubbling slightly when the temp gets up to normal.

I've used Right Stuff, the white PTFE stuff that you brush on, but what do y'all like?

 

[skunked]

permatex

 

[mrk5]

I use Loctite thread sealer in the lipstick tube.

 

[Justin V]

Think 16 oz will be enough?

 

[Justin V]

The only good thing about this is that I have to drain the water anyway, and the head stud is accessible without removing anything else....

 

[skunked]

Think 16 oz will be enough?

no, you need at least a quart for a 4.0L heep

 

[TreeFarm]

permatex

View attachment 274548

Same

 

[Bent77]

permatex

View attachment 274548

Same

Or Rock Block

 

[chulisohombre]

Blue permatex.

 

[diesel4me]

If you plan on never taking the bolts out again,use Permatex Indian Head Gasket Shellac on the bolt threads..

That stuff dries to a semi solid paste that will stop any liquid--getting the bolts out later may be an issue though,heat will help soften it and make it come loose easier.

 

[Truckman4life]

I like this stuff. A tube lasts a long time and easier to use than the brush in my opinion.