The Ford Barn

Cape Codder · 09-03-2018, 08:22 AM

I'm changing the Exhaust Manifold/Intake Manifold Gasket but can't remember which way the smooth part of gasket goes? Does the smooth part go toward the block or toward the Exhaust/Intake Manifold?

Thanks for your time.

katy · 09-03-2018, 09:09 AM

I don't think it matters, both the block and manifolds are cast iron.
I like to put a thin coating of graphite grease on both sides of the gasket.

jw hash · 09-03-2018, 09:10 AM

the smooth side goes out towards the manifold

johnbuckley · 09-03-2018, 01:16 PM

Quote:

Originally Posted by jw hash

the smooth side goes out towards the manifold

Why? Curious as I am a bit surprised as I would have thought it didn't matter other than if the crimp makes an indentation when its easier to flat the manifold rather than the block - same as the cylinder head/block gasket scenario.

John Stone · 09-03-2018, 04:05 PM

Quote:

Originally Posted by johnbuckley

Why? Curious as I am a bit surprised as I would have thought it didn't matter other than if the crimp makes an indentation when its easier to flat the manifold rather than the block - same as the cylinder head/block gasket scenario.

This is what I always thought.

Cape Codder · 09-03-2018, 09:25 AM

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Thanks to jw hash & katy for your response and info!

Jacksonlll · 09-04-2018, 12:01 PM

The heat barrier goes toward the hot manifold to reflect the heat away from the engine.

1931 flamingo · 09-04-2018, 02:36 PM

Depends on which gasket he was using.
Paul in CT

I like the late 31 copper that drops into place. Much easier to change if you have to.

James Rogers · 09-04-2018, 05:32 PM

Johnbuckley and John Stone are both correct.

Kurt in NJ · 09-04-2018, 06:03 PM

The A&L gasket has the crimped over part on both sides

Cape Codder · 09-04-2018, 09:46 PM

Well I thought I should get back to the board.
I changed the Exhaust Manifold Gasket after finding it had a couple area's of leakage and also the Carb. gasket. I installed it with the SMOOTH side toward the manifold's taking the advice of jw hash because I DIDIN'T know which way. The car does run really nice now. And no I am not going to turn it around. Just hope it stays that way as I will be on my way to the New England Meet in two weeks from tomorrow, Wednesday!

Thanks to ALL for your input and suggestions.

CWPASADENA · 09-04-2018, 10:24 PM

Just a suggestion.

I use the original type copper gaskets, as stated above, the late 31's work very well.

I put the smooth side toward the manifold. I use a thin coat of high temperature RTV (silicone) I use the gland rings if at all possible.

Retighten the nuts after a few heat cycles and again after a hundred miles or so. I have had VERY good life from the gaskets doing it this way.

Again, this is just my opinion.

Chris W.

Hoogah · 09-05-2018, 01:20 AM

The gasket that I installed over the weekend came with instructions that indicated that the copper side faces the manifold, so that's the view of the manufacturer too!

Bob-A · 09-05-2018, 07:25 AM

I use the tin clad full length replacement manifold gasket. I spray both sides with Copper-Coat and let it air dry for a couple of minutes until tacky.

Bob-A

09-03-2018, 08:22 AM	#1
Cape Codder Senior Member Join Date: May 2010 Posts: 1,337	Exhaust Manifold Gasket I'm changing the Exhaust Manifold/Intake Manifold Gasket but can't remember which way the smooth part of gasket goes? Does the smooth part go toward the block or toward the Exhaust/Intake Manifold? Thanks for your time.

09-03-2018, 09:09 AM	#2
katy Senior Member Join Date: Jun 2015 Location: Red Deer, Alberta Posts: 5,716	Re: Exhaust Manifold Gasket I don't think it matters, both the block and manifolds are cast iron. I like to put a thin coating of graphite grease on both sides of the gasket. __________________ If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn!

09-03-2018, 09:10 AM	#3
jw hash Senior Member Join Date: May 2010 Location: Auburn Washington Posts: 2,662	Re: Exhaust Manifold Gasket the smooth side goes out towards the manifold

09-03-2018, 09:25 AM	#6
Cape Codder Senior Member Join Date: May 2010 Posts: 1,337	Re: Exhaust Manifold Gasket Sponsored Links (Register now to hide all advertisements) Thanks to jw hash & katy for your response and info!

09-04-2018, 12:01 PM	#7
Jacksonlll Senior Member Join Date: Jul 2012 Location: Michigan-- Member of Oakleaf of MARC Posts: 1,686	Re: Exhaust Manifold Gasket The heat barrier goes toward the hot manifold to reflect the heat away from the engine.

09-04-2018, 02:36 PM	#8
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,428	Re: Exhaust Manifold Gasket Depends on which gasket he was using. Paul in CT I like the late 31 copper that drops into place. Much easier to change if you have to.

09-04-2018, 05:32 PM	#9
James Rogers Senior Member Join Date: May 2010 Location: Asheville,NC Posts: 3,104	Re: Exhaust Manifold Gasket Johnbuckley and John Stone are both correct. __________________ http://www.model-a-ford-4bangers.com/

09-04-2018, 06:03 PM	#10
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,556	Re: Exhaust Manifold Gasket The A&L gasket has the crimped over part on both sides

09-04-2018, 09:46 PM	#11
Cape Codder Senior Member Join Date: May 2010 Posts: 1,337	Re: Exhaust Manifold Gasket Well I thought I should get back to the board. I changed the Exhaust Manifold Gasket after finding it had a couple area's of leakage and also the Carb. gasket. I installed it with the SMOOTH side toward the manifold's taking the advice of jw hash because I DIDIN'T know which way. The car does run really nice now. And no I am not going to turn it around. Just hope it stays that way as I will be on my way to the New England Meet in two weeks from tomorrow, Wednesday! Thanks to ALL for your input and suggestions.

09-04-2018, 10:24 PM	#12
CWPASADENA Senior Member Join Date: May 2010 Location: PASADENA, CA Posts: 1,931	Re: Exhaust Manifold Gasket Just a suggestion. I use the original type copper gaskets, as stated above, the late 31's work very well. I put the smooth side toward the manifold. I use a thin coat of high temperature RTV (silicone) I use the gland rings if at all possible. Retighten the nuts after a few heat cycles and again after a hundred miles or so. I have had VERY good life from the gaskets doing it this way. Again, this is just my opinion. Chris W.

09-05-2018, 01:20 AM	#13
Hoogah Senior Member Join Date: Feb 2014 Location: Warrnambool, Victoria, Australia Posts: 800	Re: Exhaust Manifold Gasket The gasket that I installed over the weekend came with instructions that indicated that the copper side faces the manifold, so that's the view of the manufacturer too!

09-05-2018, 07:25 AM	#14
Bob-A Senior Member Join Date: May 2010 Location: Central FL, USA Posts: 1,182	Re: Exhaust Manifold Gasket I use the tin clad full length replacement manifold gasket. I spray both sides with Copper-Coat and let it air dry for a couple of minutes until tacky. Bob-A