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Old 04-18-2019, 11:24 AM   #1
Gary WA
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Default Intake Manifold to carb ears

Two in a row! All years of working on A's never happened! Why? I was using a copper gasket guess ill go back to paper!
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Old 04-18-2019, 11:28 AM   #2
Brentwood Bob
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Default Re: Intake Manifold to carb ears

The dark area on the ear looks like a crack.
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Old 04-18-2019, 11:35 AM   #3
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Default Re: Intake Manifold to carb ears

I found only the higher priced "show car" two piece copper manifold gaskets fit well. All the others didn't seem to have the holes lined up properly.
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Old 04-18-2019, 12:23 PM   #4
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Default Re: Intake Manifold to carb ears

I’ve done the same thing. On our 1929, we have been running it that way for 40 years. No issues. Runs great.
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Old 04-18-2019, 01:41 PM   #5
FRANK PKNY
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Default Re: Intake Manifold to carb ears

You first need to know if the manifold is flat, is the block flat, are the groves on the block free of carbon build up. If all the surfaces are true and the gaskets fit properly. Install the manifold and tighten lightly just enough to get a reasonable seal. You can always go back and re-tighten after a few starts and cool downs. I'll bet you just over tightened them to much. cast iron is brittle. I've seen this happen on the water pump goose neck lots of times. Your to rough on the old girl! LOL
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Old 04-18-2019, 01:46 PM   #6
Bob C
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Default Re: Intake Manifold to carb ears

Guys he said Carb to intake manifold.
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Old 04-18-2019, 03:48 PM   #7
Gary WA
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Default Re: Intake Manifold to carb ears

I know about manifold gaskets never broke one I'm talking about carburetor to intake. As Bob c says.
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Old 04-18-2019, 03:54 PM   #8
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Default Re: Intake Manifold to carb ears

Make sure the mating surfaces are flat. Clean up both with a file. The carb flange moves around a lot and the manifold flange can drift away from flat also. Nothing wrong with paper gaskets.
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Old 04-18-2019, 03:56 PM   #9
J Franklin
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Default Re: Intake Manifold to carb ears

Maybe run a file across both the manifold and carb flanges. Paper gaskets work well also.
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Old 04-18-2019, 04:12 PM   #10
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Default Re: Intake Manifold to carb ears

On these old cars you never know how heavy handed some previous mechanic was way back when. Iron casting technology is better now than it ever has been but back then, they still had a lot to learn. It's a wonder some of those items have survived so long. I use paper gaskets and even fuel resistant sealant if I have to on the stubborn leakers.
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Old 04-19-2019, 08:40 AM   #11
FRANK PKNY
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Default Re: Intake Manifold to carb ears

OK Bob, so sorry I missed that, however the same advise still applies.
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Old 04-19-2019, 01:41 PM   #12
Brentwood Bob
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Default Re: Intake Manifold to carb ears

Brittle, uneven, mismatched, dropped at some point, over torqued, etc.
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