Weeping around head bolt
 

Replaced the head gasket, (copper type) on a Model A
I used a different head than what was on the block to begin with.
The block wasn't decked or the head resurfaced.
Getting weeping (wet around some of the head bolts.)
Only water has been put in, not anti-freeze yet.
Should I have used copper gold spray on the gasket before installing it?

Re: Weeping around head bolt
 

You should have used something on the gasket. I usually use Copper-coat. A little Permatex #2 on the head bolts helps also.

Re: Weeping around head bolt
 

Since "The block wasn't decked or the head resurfaced" even something like copper coat may not have worked. Did you also re-torque the head nut several times?

Re: Weeping around head bolt
 

https://www.fordbarn.com/forum/showth...t=dental+floss

This search shows dental floss having been used in similar situations. See item #12

Re: Weeping around head bolt
 

I doubt that the gasket is the problem. I use anti seize compound on the coarse threads of the studs where they enter the block and nothing on the fine thread end where the head nuts install. In worse cases where the bottom of the threaded holes in the block have been broken from over tightening the studs, I use silicone RTV sealer on the coarse threads of the studs. As mentioned above, the head nuts will need to be retorqued several times in the correct sequence, untill they will hold 55 ft. lbs. torque.

Re: Weeping around head bolt
 

Head gaskets seeping on Model A's must be the nature of the beast because just about every one I look at seems to have seepage!

A local antique car 'restorer 'used to solve the problem with a crescent wrench and a good tug. He went out of business years ago from other 'fixes' he had devised!

Re: Weeping around head bolt
 

Re: Weeping around head bolt
 

I had one leaking and read the same post Ed is referring to above. About 8 wraps of dental floss did the trick. No more leak!

Re: Weeping around head bolt
 

Sooner or later rust on the stud will stop the leak.

Re: Weeping around head bolt
 

Re: Weeping around head bolt
 

basicly if the water leak is not on the outside of the head its not a head gasket, the best way to stop head stud leaks is to prevent them in the first place, seal all the studs before installing the head, when ever the head is removed check to see if its warped, and when removing a head remove the head bolts in the opposit direction as when it was torqued, that will eliminate a lot of head warpage, and the subsequent water leaks

Re: Weeping around head bolt
 

Thank you for all the replies to the weeping around the head bolts. We ran the engine the next day and the head bolts didn't have any seepage.
Go figure!