The Stovebolt Site Forums The Shop Area Engine Shop re-posting pic of hole in 235 head and coolant leak

should have put it in the original thread .... maybe that's why it doesn't work, just leads to yahoo sign in

Bill

You now have 3 threads for one problem.

I have no idea why my picture isn't showing up correctly, I do apologize for the multiple postings I should have just got it correct the first time.

pic's

This link and first link show an intake manifold. Is the problem with the head or the manifold?

None of the links work... 2nd link is file not found.

I am sorry the pic links are not working correctly, it is frustrating me. When I click on the link in the last post, it goes to 2 pictures showing the head with the holes and one showing the intake. However, to answer your question better, it is in the head-there are 3 holes, 1/8" in diameter, non-threaded and just below each of the intake ports. The intake gasket covers the holes when mounted. It is the center hole that the coolant comes out of. I have emailed Tom at Langdons and he just responded back. Tom has indicated that they are not factory drilled holes and he has no idea why they are there. Tom suggest tapping the holes 1/4-20, installing a set screw with Loctite on them.

I have not been able to see any pic of the head only the manifold.
I can tell you there are no holes in the head from the factory. I would plug the holes with JB weld or your preferred method.

Jeffs last link goes to: "It looks like you're trying to see something in deepbluephoto5821's photostream"
which leads to this picture, as Dave says, the manifold

Bill

AGGGH! Lol, it is so frustrating to get this link working. I have followed the instructions but I must be doing something wrong. Please bear with me as I try to get it correct. All of your input is greatly appreciated, believe me.

Pic's I believe

still goes to the same single pic of some fitting below the carb

Bill

My problem seems to be the setting of my pictures as private, I am so sorry folks. Hopefully it will work now.
Last Attempt Pictures

works now

I have that same head and do not have those holes.
Maybe someone else will have an idea

It looks like an old body-man trick for aligning doors.

Drill an 1/8" hole through your hinge and into the pillar, that way you can line it back up when it goes back together.

I wonder if someone did that with your head. Maybe they had an aftermarket intake and didn't have the alignment collars.

No telling what went on in a 60 year old engine.

Interesting idea, Whitedog, however there has never been any coolant leaking out of here before. I have had the truck since 2002, had a rebuild in 2006 and just had a valve job done as I dropped a valve seat. It has had a Clifford manifold on it since I have had it. Possible it had a plug that came out during the revalve but I don't think so. No leaks out of the other two holes under the other intake ports, either. It has been suggested to put a 1/4-20 thread in it and use a set screw with Loctite to seal the hole. Just not sure about the coolant issue, though. I have no idea about the cooling jacket, etc.

Just guessing here but I think that when the head was reworked for the replacement seats it got hot tanked and there was no metal left in the bottom of that hole. I would just tap it and put a set screw in there with a sealer and make it flush or just a bit below and forget it. There are water cavities in there for cooling. So just close it up and you should be just fine. You won'y hurt any thing by closing it off. As for why there is a hole? Whitedog has as good a guess as I could think of. Might have used a pin to keep it all aligned. There would have been a corresponding hole in the manifold but who knows when or what manifold was on there. Like I said there would be no harm in closing that hole up. Cost? about $1 and your time. Gotta buy the set screw.:)

That one works correctly.I can say I've never a head with holes like that.

I like the idea of a line-up pin somewhere along the way and the one hole got drilled to deep?? The answer may never be found unless you could back track the owners which, I suspect, is doubtful. I agree with the others. Plug it and go.

Well I tend to agree with the idea of tapping the hole and putting in a set screw just below the surface. I will probably use some Permatex Ultra Copper sealer to finish the hole off flush. I appreciate all of the input, there really is a wealth of information on this forum!