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NG900 & OG9-3 Workshop NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible Technical Forum

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  #1  
Old 28th September 2007
gthomp0805 gthomp0805 is offline
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Default intake manifold gasket

I recently tuned up my 1994 900 se and had to remove the intake manifold to get to the back 3 plugs. I noticed there was no gasket for the intake manifold and just put it back together without one. Now that I am thinking about it, shouldn't there be one to cut down on the amount of air sucked in between the two metal surfaces? Wouldn't this effect the idle if there is too much air being sucked into the block because there is no gasket? If there should be a gasket, would you use a permatex gasket adhesive to keep it in place?
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  #2  
Old 28th September 2007
Tweek's Turbos Tweek's Turbos is offline
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I was going to say you should have installed the N.A. manifold, then I realized you have an SE V6.
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  #3  
Old 29th September 2007
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I think a manifold paper gasket is used; if not, just use RTV silicone "liquid gasket" and make your own .
http://www.saabcentral.com/forums/sh...anifold+gasket

An O ring is used ! The search worked again, but some digging was necessary.

Hold on and see what Ragtop has to say..
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Last edited by earthworm; 29th September 2007 at 08:01 PM.
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  #4  
Old 30th September 2007
Pete67 Pete67 is offline
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There should be a gasket in there, its part no. 45 03 512, its the green paper type, and doesn't need any adhesive just bolting down the manifold will hold it in place
Saab do say you should replace it every time you lift the intake manifold but you can get away with it if your careful.
They cost £4.39 over here in the U.K.
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  #5  
Old 1st October 2007
gthomp0805 gthomp0805 is offline
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OK, so I saw the green gasket there but did not realize it was a gasket. I wiped it down and put the manifold back in place. I will replace it. Where does the intake manifold "O" ring go? Is there more than one?
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  #6  
Old 3rd October 2007
Pete67 Pete67 is offline
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How big is this o ring for the intake manifold?
I can't place the part on my car or the parts catalogue.
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  #7  
Old 3rd October 2007
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Per Saabsite, the upper, middle and lower intake gaskets are as follows:

900 94-97 V6 Intake Gasket Upper OEM - 90412126 -$8.25

900 94-97 V6 Intake Gasket Middle AFT - 90412127 - $9.00

900 94-97 V6 Intake Gasket Lower 2 needed - 4504973 - $7.00


Per Eeuroparts:

Part Code: 4503512
Part Name: Intake Manifold Gasket (upper)
Part Brand: Elring
Part Cost: $4.99
Part Description:
Upper intake manifold gasket for any 94-97 900 V6, and 99-02 9-5 V6. Fits between top section of intake manifold and mid section. Saab original Elring





Part Code: 4504965
Part Name: Intake Manifold Gasket (lower mid section)
Part Brand: Elring
Part Cost: $7.08
Part Description:
Intake manifold gasket for the lower part of the midsection of the intake manifold for any 94-97 900 V6.

Part Code: 4504973
Part Name: Intake Manifold Gasket(lower intake to head)
Part Brand: Aftermarket
Part Cost: $7.90
Part Description:
Lower intake manifold gasket to cylinder head for any 94-97 900 V6. 2 per car.


















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  #8  
Old 3rd October 2007
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Originally, Dtsirlis mentioned an O ring, maybe this is used with the thermostat.... Easy to find its groove and place..

Good pics as usual from Saabohme...
Thanks
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