Manifold gaskets

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Model T Ford Forum: Forum 2016: Manifold gaskets
Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Bourgeois on Thursday, October 13, 2016 - 10:21 pm:

I have the following gaskets and sleeves.
Do I run just the gasket or do I use the metal sleeves on the left or just the sleeves with the wrap on the right?
What combination should I use to get the best seal?


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dallas landers on Thursday, October 13, 2016 - 10:25 pm:

The copper ones on right lower portion of pic
Having good luck with them


Top of pagePrevious messageNext messageBottom of page Link to this message  By Steve Jelf, Parkerfield KS on Thursday, October 13, 2016 - 10:45 pm:

Throw that three-holed thing as far as you can, or use it for a wall decoration. Use these: https://www.modeltford.com/item/3063-64.aspx. There are some that have the steel and copper rings combined, but they cost twice as much, so I don't see the point. If there are any rust pits or other surface irregularities, add high-temp RTV to help the copper rings seal.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Dan Treace, North FL on Friday, October 14, 2016 - 09:24 am:

You can use the three hole gasket, but always use the steel glands with it.

Needed for leak free fit is a straight manifold, meaning all 4 ports line up in a straight line, check with a straight edge.

Then good clean ports in the block.

Fit each steel gland ring into the block ports and the manifold ports to check fit, snug and even with edges. Twist, trim, and shape each as needed. The repro parts are 'close', but need manipulation first.


Ports a bit off!

The separate steel gland and copper/asbestos-like rings are the Ford method, and these work good when fitted.



...but the three hole copper long gasket works as long as you fit the steel glands into the holes too.



That long three hole needs some work, as the slots might not clear the studs, so trim the narrow slot wider, and check against the block if the cylinder head is in place, as the top edge of the long three hole gasket can be pushed away and won't lay flush. Trim the top edge as needed.


Fitted with 3 hole long copper gasket, but with each port having a fitted steel gland ring. The steel ring holds the iron manifold up and in alignment with the block ports and assists in preventing manifold 'sag' or warping.


My experience with the one-piece copper gland and crush isn't good. These are on the lower part of the photo, as the copper is hardened from forming, and didn't crush, stood the manifold off the block, and I experienced leaks, others like 'em.



But the all time best is the stock Ford steel gland and copper sandwich crush ring, properly fitted.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Larry Smith, Lomita, California on Friday, October 14, 2016 - 10:38 am:

The three in one gaskets are most likely the reason the manifolds warped in the first place!


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