Coolant leak

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Model T Ford Forum: Forum 2013: Coolant leak
Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman Miller on Monday, May 27, 2013 - 05:36 pm:

Just rebuilt the engine and after the first start I noticed a little coolant leaking out of all 4 manifold studs. when the motor was out I did install 3/8" helicoils in all 4. I used permatex copper spray on the new copper head gasket. Is there a special sealant for this problem?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Wayne Sheldon, Grass Valley, CA on Monday, May 27, 2013 - 06:23 pm:

I use Permatex number 2 non-hardening for bolts/studs that may leak (just a dab on the threads, sometimes inside the block also. I use a toothpick). It seals well without hardening or gluing the bolt in. It also doesn't encourage the bolt to work loose. I have taken things apart after twenty years and it is still doing what it should.
Drive carefully, and enjoy, W2


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman Miller on Tuesday, May 28, 2013 - 12:50 pm:

Just read the label on the "RIGHT STUFF" from permatex and its good for 450 degrees but seems to be rubber based. Anybody use this stuff on leaky head bolts or leaky manifold studs?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Bohlen, Severn MD on Tuesday, May 28, 2013 - 02:16 pm:

Norman,

Are you sure it's not the freeze plugs???


Top of pagePrevious messageNext messageBottom of page Link to this message  By Royce in Dallas TX on Wednesday, May 29, 2013 - 10:00 am:

Any sealant will fix the problem. The Right Stuff will do it.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Ted Dumas on Thursday, May 30, 2013 - 11:46 pm:

Norman,

Larry is likely correct>


Top of pagePrevious messageNext messageBottom of page Link to this message  By Norman Miller on Saturday, June 01, 2013 - 09:38 am:

I removed the 4 head bolts that are near the 4 manifold studs and could blow air through the head bolt holes out through the manifold stud holes. Freeze out plugs not leaking. I used sealer on both the head bolts and manifold studs. I run engine for about 10 minutes yesterday. No ;leaks YET. Today I'm going to retorque head.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Bohlen, Severn MD on Saturday, June 01, 2013 - 10:52 am:

Norman,

Glad you found it.
Wow somebody went deep with the drill & tap machine that day at the factory.


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