Cylinder Head Bolts stuck.

[Todd Dykman]

I'm in a jam. no pun intended.
got my block and head back from machine shop all pretty. I was putting the head bolts in and I have 2 that won't go all the way in. I can't get them back out either. I jammed two nuts together and used that to get all the others in, but I have two that just won't go, and now they are stuck!
Can't get them in, or out.
HELP!
I put some penetrating oil on it to hope fully break them loose, and tried lightly heating the area on the block to try and free them.
Any suggestions?

 

[ET]

You can usually get ahold of those studs with a small pipe wrench. Try running a thread chaser in the block and a power wire brush on the threads on the stud.

 

[glennster]

stud removal/installation tool, napa, sears, or any tool truck,

<a href="http://photobucket.com/" target="_blank">

</a>

 

[Mike Aylward]

It's a good idea to chase the threads in the block once you get the stud out. However, DO NOT chase the square end of the stud. The threads on this end are purposely not quite as deep so as to provide an "interference fit" so the stud stays put. Square end in, round end out. Mike

 

[Todd Young]

Hi,

I chased the threads and wire wheeled the studs. Also used
two nuts jammed together. I put the studs in and then
installed the head. Put thread sealer on studs in water jacket.
I am guessing the studs that go into the water jacket are
giving you a problem. Gently use an impact to get the studs
out.

 

[Todd Dykman]

Got them out. combo of stud extractor and pipe wrench.

So here are my next questions.
for a 1935 model D


Where do I find new studs? (1254R)
3/4 x 7 7/16

new nuts?
I have the lead washers already.

RTV on the threads so it seals it from the water jacket?
or just some locktite?

 

[Lauren in IOWA]

Todd, you can use grade 8 threaded rod and can cut to length. It can be bought from Fastenall or some place like that.

 

[Mike Aylward]

I had new head studs made for my pulling 70. We made them out of grade 8 bolts and cut the block threads. While threaded rod might work I would be somewhat concerned about the effective smaller diameter and the reduction in strength. Also, the stud should have an interference fit on the end going into the block. Threaded rod would not have this. Mike

 

[Mike M]

Locktite makes a product just for stud and bearing mounting

 

[tim s]

To add to all this, Be careful forcing the studs in, it is possible to crack or split the block from the "wedge" effect that to tight bolt is creating,, and I would never us all-thread or threaded rod for a head bolt, I made my new bolts from solid rod and threaded them, and like Mike stated one end should be a bit shallow on the thread to make it want to stay in place,, I loc-tited mine, and made them just a bit longer than the originals. When ever a bolt is going "in" or "Out" too hard care should be taken to ovoid damages..