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318/340 Intake Manifold Install... #678025
04/23/10 09:51 AM
04/23/10 09:51 AM
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Waynesboro, PA
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cuda_tim Offline OP
mopar
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Waynesboro, PA
Ok, I've always wanted to ask this question, but I've never had the time.

So here goes...

When installing the front and rear intake gaskets on a SB Chrysler (especially when you just installed new Head gaskets), I've always wondered what to do about the head gasket tabs that interfere with the placement of the intake gaskets.

1) Do you cut them off?
2) Or, do you bend them down and then install the front and rear intake gaskets?
3) Or, do you install the front and rear intake gaskets, then bend the tabs down to help hold the ends of the intake gaskets down?

Anybody?

Thanks!

Tim...


"Robots building robots.... now that's just stupid!" - Will Smith in the movie "I, Robot".

'71 Demon (340/727)/'69 Charger (383/727)/'65 Barracuda (273-2V/904)/'66 Coronet (340/727)/'86 Dodge Aries (2.5L)/'78 Dodge Aspen (318-2V/904)
Re: 318/340 Intake Manifold Install... [Re: cuda_tim] #678026
04/23/10 10:02 AM
04/23/10 10:02 AM
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Posts: 25,200
Upper Midwest
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MoparforLife Offline
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If you use the intake gasket with the end pieces the tabs go through the little holes in the end pieces to hold in place. If you use silicone you can clip them off or leave them the intake should seal either way..

Re: 318/340 Intake Manifold Install... [Re: MoparforLife] #678027
04/23/10 10:09 AM
04/23/10 10:09 AM
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Posts: 589
Waynesboro, PA
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cuda_tim Offline OP
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Quote:

If you use the intake gasket with the end pieces the tabs go through he little holes in the end pieces to hold in place.

If you use silicone you can clip them off or leave them the intake should seal either way..




Good answer...

I've never had any trouble with leaks, but I always find myself wondering "how did I install these the last time????"

I always like to glue the pieces down (with silicone) and let it sit overnight anyhow.

I'm going to make it a point to just "cut them off".

Thanks!


"Robots building robots.... now that's just stupid!" - Will Smith in the movie "I, Robot".

'71 Demon (340/727)/'69 Charger (383/727)/'65 Barracuda (273-2V/904)/'66 Coronet (340/727)/'86 Dodge Aries (2.5L)/'78 Dodge Aspen (318-2V/904)
Re: 318/340 Intake Manifold Install... [Re: cuda_tim] #678028
04/23/10 04:21 PM
04/23/10 04:21 PM
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Lincoln Nebraska
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RapidRobert Offline
Circle Track
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cut em off and use clear silicone instead of the supplied end rail gaskets which regularly are too thick and hold the intake up just a hair where down the line the front water ports will start to seep. A wide carefully placed swath of RTV works/looks perfect and clean the surfaces 1st w brake kleen


live every 24 hour block of time like it's your last day on earth
Re: 318/340 Intake Manifold Install... [Re: RapidRobert] #678029
04/23/10 04:47 PM
04/23/10 04:47 PM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
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Florida
let it cure over night also

Re: 318/340 Intake Manifold Install... [Re: scratchnfotraction] #678030
04/23/10 04:51 PM
04/23/10 04:51 PM
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Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
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Quote:

let it cure over night also


Yes


live every 24 hour block of time like it's your last day on earth
Re: 318/340 Intake Manifold Install... [Re: RapidRobert] #678031
04/25/10 08:10 PM
04/25/10 08:10 PM
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ILLINOIS
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volaredon Offline
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I have bnever had a problem using the supplied end seals and also have never had success using RTV alonbe in place of the supplied end seals. I use the ones that come with the gasket set and put RTV ONLY in the corners where the seperate gaskets come together.

Re: 318/340 Intake Manifold Install... [Re: volaredon] #678032
04/26/10 02:28 AM
04/26/10 02:28 AM
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Canada -- Posts: 4034 -Registe...
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5thAve Offline
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I always throw out the end seals and use silicone and never had a problem. I know someone who cuts the head gasket tab off when he does it. If it's flat I just leave it there.

Re: 318/340 Intake Manifold Install... [Re: 5thAve] #678033
04/26/10 08:22 AM
04/26/10 08:22 AM
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Posts: 15,487
Florida
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scratchnfotraction Offline
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Florida
comes down to workmanship IMO

i have used the cork end seals for yrs and never have a problem with just rtv in the corners

I have also used just rtv on the ends,but use it in a large calk tube and gun so I get a wider thicker bead the first lay down

to much and it can wind up all in the engine from sqeeze out,does not go thru the oil pump very well either

I feel by hand as the intake is torqued down slowly,keeping the ends gasket from sqeezing out and moveing and pushing against it when it wants to slide out..nice and straight let rtv in the corners cure over night

main thing is to plan the intake swap as a 24hr job for cure time


Re: 318/340 Intake Manifold Install... [Re: RapidRobert] #678034
04/26/10 11:39 AM
04/26/10 11:39 AM
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Posts: 6,840
The Swamp
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Sixpak Offline
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Quote:

cut em off and use clear silicone instead of the supplied end rail gaskets which regularly are too thick and hold the intake up just a hair where down the line the front water ports will start to seep. A wide carefully placed swath of RTV works/looks perfect and clean the surfaces 1st w brake kleen




Sooner or later cork or rubber will push or give out, regardless of whether you used the little dowel pins in the middle of the sealing area. Silicone and nothing else...







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