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#1
10-02-2019, 02:10 AM
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Water pump to manifold rubber washer
It's time to bolt the intake on our 455. The black rubber washers that comes with felpro and mr gaskets intake manifold gaskets are exactly the same. I'm concerned with the pocket for the rubber washer in the front of the intake, there will not be enough rubber washer sticking out to seal against the timing cover housing. It takes very little effort to compress the two togeather to where they are metal to metal. It looks like with 15lbs of hot water it would leak! Is this a problem, what is the best solution? Glue two washers togeather?
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#2
10-02-2019, 02:20 AM
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I had issues with mine leaking after swapping intakes. My gasket set came with a thin, cheesy foam piece that compressed too easily and leaked. The old one I took off (and threw out!) was twice as thick and actually felt like rubber.
I would up at the hardware store and found a thick, hot water rated washer that I put in and the weeping stopped.
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Triple Black 1971 GTO |
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#3
10-02-2019, 09:00 AM
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I add the "right stuff by permatex " to both sides, never leaks
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#4
10-02-2019, 12:42 PM
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Quote:
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#5
10-02-2019, 07:50 PM
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Quote:
I always use a lot of RTV in that area. Just make sure it doesnt get into the water passage. Without RTV, it will leak. |
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#6
10-02-2019, 07:59 PM
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I have cut my own out of silicone sheet which is also a little thicker and a little stiffer
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A man who falls for everything stands for nothing. |
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#7
10-02-2019, 08:01 PM
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Quote:
He's your answer by JSPONT. Just don't go crazy.. Make sure you don't over do it and plug up the bypass. |
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#8
10-02-2019, 08:14 PM
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Your rubber washer looks okay.
Follow these guys advice on the sealant, and use the proper technique on tightening the bolts. Leave the intake-to-head bolts snug'ish - then snug and step tighten the front facing bolt from intake-to-timing cover. It pulls the intake to the timing cover. Then torque the intake bolts. |
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#9
10-02-2019, 08:16 PM
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Quote:
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#10
10-02-2019, 08:59 PM
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I have my water crossover cut off which helps a bunch. Plus pulling the intake and swapping them is easy with no water/ antifreeze mess.
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#11
10-03-2019, 07:56 AM
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If you knock down the lip on the intake around the rubber washer with a file it will slide forward more and apply more psi to the gasket. But you have to make sure you don't go too much or it may make the ports not match up well. But a 1/16-1/8 shouldn't cause a problem.
Using this method, I only use RTV to 'stick' the rubber washer to the intake, and make R&R a breeze. .
__________________
. 1970 GTO Judge Tribute Pro-Tour Project 535 IA2 http://forums.maxperformanceinc.com/...d.php?t=760624 1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car https://forums.maxperformanceinc.com...ght=procharger Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be |
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#12
10-03-2019, 01:20 PM
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RTV here also. Finger tight on the intake bolts before tightening the draw bolt.
__________________
Triple Black 1971 GTO |
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