HOLE IN BLOCK

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Model T Ford Forum: Forum 2013: HOLE IN BLOCK
Top of pagePrevious messageNext messageBottom of page Link to this message  By JOHN BEVARDOS on Tuesday, August 06, 2013 - 12:34 pm:

Gents, have a 26-27 long block and noticed that one on the head bolt holes has broken off on the waterjacket.Still has plenty of threads for bolt. Could it be sealed up to prevent leaks??


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick on Tuesday, August 06, 2013 - 12:46 pm:

If you are asking if you can seal up a bolt hole instead of removing the broken off bolt and installing a new head bolt, I would say no. I believe all of the bolts are necessary to ensure a uniform pressure on the head to prevent warpage or distortion from the heat. Jim Patrick


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Thode Chehalis Washington on Tuesday, August 06, 2013 - 12:51 pm:

John,
A photo of your problem would help.
Jim


Top of pagePrevious messageNext messageBottom of page Link to this message  By JOHN BEVARDOS on Tuesday, August 06, 2013 - 01:00 pm:

Hi Jim, I will try and snap off a few shots. Thank you both for the input.


Top of pagePrevious messageNext messageBottom of page Link to this message  By John F. Regan on Tuesday, August 06, 2013 - 02:12 pm:

I think what he is saying is that he can see down through a threaded head bolt hole and into the water jacket because the hole has no bottom.


Top of pagePrevious messageNext messageBottom of page Link to this message  By JOHN BEVARDOS on Tuesday, August 06, 2013 - 02:16 pm:

Thats correct John.You explaied better than me!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jim Patrick on Tuesday, August 06, 2013 - 02:31 pm:

If there are plenty of threads for the head bolt to grab, I would suggest coating the threads with locktite or some other waterproof, heatproof thread seal, to prevent the water from escaping from the water jacket, but I would not seal a bolt hole to prevent it from being used, as I think they are all necessary for a secure and uniform head seal against the block. Jim Patrick


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jack Putnam, Bluffton, Ohio on Tuesday, August 06, 2013 - 02:45 pm:

There are many chevy v-8 engines where the bolt holes go into the water jacket by design. Your is not the first. Use permatex form a gasket on the bolt and put some in the hole that the bolt will push down into the hole. Problem solved!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Hatch on Tuesday, August 06, 2013 - 03:54 pm:

Sounds like a job for MBT or a couple of buckets of good old muddy creek water. Both were used in the good old days. :-) Dan


Top of pagePrevious messageNext messageBottom of page Link to this message  By Leonard J Evansic on Tuesday, August 06, 2013 - 06:43 pm:

A permanent fix would be an allen head set screw. Drill through the hole and run a taper tap in but not all the way. When you feel the tap losing resistance, stop and do a dry run with the set screw. A 1/4" set screw should be long enough and if you cant find one cut and grind down a longer one. Coat it with Locktite , and reseat it. Be sure to check the depth of the hole and trim the headbolt so it does not bottom out without the gasket. Mark the head of the bolt and reference location of the hole in your manual. Try to determine how this happened. If some gorilla tried to put too long bolt in that hole, there might be a chunk of iron inside the water jacket. that should not hurt anything.


Top of pagePrevious messageNext messageBottom of page Link to this message  By A. J. "Art" Bell on Tuesday, August 06, 2013 - 08:18 pm:

Perhaps just get ready for winter - Remember these?


Top of pagePrevious messageNext messageBottom of page Link to this message  By kep on Tuesday, August 06, 2013 - 08:28 pm:

Most of my bolts go into the water jacket.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Kenny Edmondson, Indianapolis on Wednesday, August 07, 2013 - 06:15 am:

John, I had one like that I used ultra black sealer on the head bolt threads and never had any issues with leaks.


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