Coolant leak

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Model T Ford Forum: Forum 2016: Coolant leak
Top of pagePrevious messageNext messageBottom of page Link to this message  By Arthur Dewey Asher Washington IL on Wednesday, April 27, 2016 - 07:05 pm:

Noticed some anti freeze on the block just below where the center main bearing bolt comes through the block. Thought it was the gasket on the water inlet connector but have resealed that and the leak persists. Appears to be a pinhole in the block. What experience have you had with commercial block sealers in the model T. Any thoughts or recommendations? Thanks for your help. Dewey


Top of pagePrevious messageNext messageBottom of page Link to this message  By David Mazza on Wednesday, April 27, 2016 - 07:26 pm:

Drain block and pull both inlet and outlet. Pipe vacuum pump into one of the block off plates you just made. Now use jb weld to fill the pin hole and leave the vacuum on to pull sealant into void.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Alan George Long on Thursday, April 28, 2016 - 07:25 am:

Arthur. I have had coolant leaking out of two of the four manifold studs in the side of the block which needed sealing
Alan in Western Australia


Top of pagePrevious messageNext messageBottom of page Link to this message  By John Zibell, Huntsville, AL on Thursday, April 28, 2016 - 08:24 am:

Take a look at Belzona priducts. They have a two part product specifically for cast iron repair. I've had good luck with them on block leaks. Also David's technique with any product would be good practice.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Jerry VanOoteghem - SE Michigan on Thursday, April 28, 2016 - 10:05 am:

Arthur,

A less common area where the water jacket can crack is the underside area between the water inlet hole on the left side of the block, to the freeze plug hole on the right side of the block.

It's probably best at this point not to worry about it too much. Just try some block sealer, JB Weld or Alumiseal and hope it stops it.


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