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distributor gasket leak

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Old Mar 30, 2009 | 09:51 PM
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Default distributor gasket leak

Got the original '71 distributor in a Performer rpm manifold. Some oil is seeping past the gasket. Any fixes? Should be tight enough- afraid of stripping out the hold down bolt to go much more. Would 2 gaskets be too thick and throw off the distributor gear on the cam? How about some gasket seal? Thanks.
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Old Mar 31, 2009 | 08:10 AM
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are you sure you didn't split the gasket while adjusting the timing? if you glue it down it mmight split. i always use felpro gasket there , there are some really cheap gaskets out there. what pump are you running , high volume or high pressure? i wouldn't run two gaskets could make the leak worse. tom
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Old Mar 31, 2009 | 08:24 AM
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Originally Posted by kunkle
Got the original '71 distributor in a Performer rpm manifold. Some oil is seeping past the gasket. Any fixes? Should be tight enough- afraid of stripping out the hold down bolt to go much more. Would 2 gaskets be too thick and throw off the distributor gear on the cam? How about some gasket seal? Thanks.
be sure that the dizzy is not bottoming out on the drive gear...first pull the dizzy and re install with NO gasket......be sure the dizzy bottoms out against the manifold.....if there is a gap then you need to shim the dizzy with a nylon spacer between the dizzy and the gasket....spacers are available as a kit with varying thicknesses....you can use several if need be.......
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Old Mar 31, 2009 | 08:36 AM
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Originally Posted by midyearvette
be sure that the dizzy is not bottoming out on the drive gear...first pull the dizzy and re install with NO gasket......be sure the dizzy bottoms out against the manifold.....if there is a gap then you need to shim the dizzy with a nylon spacer between the dizzy and the gasket....spacers are available as a kit with varying thicknesses....you can use several if need be.......
Correct answer. However, multiple gaskets can be used. Their function is to keep dirt/water out, not oil in. There is no oil pressure there, unless you have excessive crankcase pressure.
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Old Mar 31, 2009 | 08:42 AM
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Originally Posted by FB007
Correct answer. However, multiple gaskets can be used. Their function is to keep dirt/water out, not oil in. There is no oil pressure there, unless you have excessive crankcase pressure.
correct...but if you go through a lot of timing adjustments, then the two or more gaskets rubbing together while turning the dizzy will tear one of them......the nylon spacers work well here and they wont "shred" the gaskets.......jmho...
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Old Mar 31, 2009 | 10:03 AM
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Two gaskets and the dist. mounted with the clamp and proper bolt torque should work just fine.
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Old Mar 31, 2009 | 10:20 AM
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When I installed an eddy manifold I found that the pad on the manifold that the clamp rests on is somewhat lower (in relationship to the dizzy) than on the original manifold. This caused the clamp to only contact the dizzy at its edge so the clamp pressure is no longer straight down. I had to weld a 1/4" thick tab to the small end of the clamp to get the geometry correct.

Hope this clear enough....

Daffy2
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Old Mar 31, 2009 | 10:28 AM
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after you do the
checks as discribed, check and see if the oil pressure fitting/line into the manifold for a leak.
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Old Mar 31, 2009 | 02:21 PM
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Are you sure the leak is comming from the distrubuter? My 65 442 with Perf manifold leaked at the rear. At 1st I thought it was the distributer. The manifold and engine were not a perfect fit...
Hey - This was on my Oldsey. I mixed this up with my Vette...

Last edited by Jeff_Keryk; Mar 31, 2009 at 02:24 PM.
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Old Mar 31, 2009 | 03:40 PM
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A thin layer of grease on both sides of the gasket will help seal and prevent damage when turning to time.

Last edited by 63mako; Mar 31, 2009 at 05:49 PM.
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Old Mar 31, 2009 | 04:54 PM
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Originally Posted by surfertom
are you sure you didn't split the gasket while adjusting the timing? if you glue it down it mmight split. i always use felpro gasket there , there are some really cheap gaskets out there. what pump are you running , high volume or high pressure? i wouldn't run two gaskets could make the leak worse. tom
It's a high volume pump.
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Old Mar 31, 2009 | 04:56 PM
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Originally Posted by midyearvette
be sure that the dizzy is not bottoming out on the drive gear...first pull the dizzy and re install with NO gasket......be sure the dizzy bottoms out against the manifold.....if there is a gap then you need to shim the dizzy with a nylon spacer between the dizzy and the gasket....spacers are available as a kit with varying thicknesses....you can use several if need be.......
Sounds good- will check it and see. Thanks.
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Old Mar 31, 2009 | 04:58 PM
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Originally Posted by FB007
Correct answer. However, multiple gaskets can be used. Their function is to keep dirt/water out, not oil in. There is no oil pressure there, unless you have excessive crankcase pressure.
Had the same problem with the old 350. Had same distrbutor and manifold on that. Replaced the PCV valve on the old and again while building this one.
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