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Intake gasket question

Old 04-15-2021, 10:15 AM
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Default Intake gasket question

Guys, I have a Merlin intake that ended up with some saltwater damage. I didn't know this until after I bought it. It looks like the intake gasket was just a little too big and didn't seal against the bronze water passages. I confirmed this while mocking up the intake on my AFR heads. The gasket that I was going to use, FelPro 1275, isn't going to work. The 1275's water port is really tall/deep and I can't see it working on any intake manifold with a bronze insert.

Mr. Gasket makes a blank gasket but I'd rather not have to cut out the entire thing. Any thoughts on a gasket set that will seal to the bronze passages while still fitting the AFR intake port?
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Old 04-15-2021, 11:51 AM
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mr. gasket 121 has a smaller water opening
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Old 04-15-2021, 12:33 PM
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If that 121 doesnít work. Ball peen hammer with that blank gasket ?

How us old guys make gaskets for old schit that gaskets arenít availsblr for. And some us do to line up intake ports with intakes and exhaust ports with manifolds/headers.

search gasket making on youtube. Youíll find some vids. Pretty easy to do.
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Old 04-15-2021, 01:02 PM
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Does it have to be a gasket? Could you just RTV it? Just askin!
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Old 04-15-2021, 01:04 PM
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Thanks guys. I'm going to try the 121 more out of convenience than anything.
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Old 04-15-2021, 01:33 PM
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Originally Posted by SabrToothSqrl View Post
Does it have to be a gasket? Could you just RTV it? Just askin!
It definitely needs a gasket. My intake suffered a failure because someone used the wrong gaskets with it. The aluminum was exposed to saltwater and ruined the bottom edge. Had the right gasket been used, the intake wouldn't have any issues. I'll get it right. Fortunately, the bronze is in great shape.

Doing some searches, I saw that Dean Gellner recommended sealing the gaskets at the water passages with 5200. A little extreme but no leaks!

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Old 04-15-2021, 01:52 PM
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Weld it up. Post a pic.
I used metal epoxy on one of my original dual plane intakes. The thermostat seat was gone. It has lasted 15yrs.
https://www.lowes.com/pd/J-B-WELD-St...-Fl-Oz/3389024
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Old 04-15-2021, 02:16 PM
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If I can clean it out well enough I might add some JB Weld to it.

Here are pics...




Bronze - 1, aluminum - 0



Thatís not going to work.
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Old 04-15-2021, 02:17 PM
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If I have some time, it's headed out to be sandblasted along with some other parts.
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Old 04-15-2021, 02:21 PM
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This one came out nice...



Once the other one comes back, Iím hoping to duplicate the effort. The intake in the pic does not have the bronze liner, but itíll be closed cooled so no concerns there.
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