Distributor Hight
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 992
Likes: 56
From: Baldwinsville, NY
Distributor Hight
Had trouble with distributor timing after Vortec Head change.
Installed new MSD Street Fire and like the old GM one it dose not go all the way down on the intake manifold. With two gaskets it is about 1/16" high.
Shoud I shim it and is there standard shims for that?
Installed new MSD Street Fire and like the old GM one it dose not go all the way down on the intake manifold. With two gaskets it is about 1/16" high.
Shoud I shim it and is there standard shims for that?
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 992
Likes: 56
From: Baldwinsville, NY
Distributor Hight
Bob, I found that if you do not engage the pump shaft the distr. gear will not connect and the distributor will be about 1" too high.
I ran the engine for about 60 miles with good oil pressure and checked the distributor and it was about 1/16" too high.
Thanks for the reply.
I ran the engine for about 60 miles with good oil pressure and checked the distributor and it was about 1/16" too high.
Thanks for the reply.
Instructor
Joined: Jul 2008
Posts: 100
Likes: 0
From: Long Jetty NSW
Hi Mike, you're right, the dizzy will sit up a lot more than 1/16" if it's not engaged properly. Just thought that was a starting point. Are you saying the old dizzy was the same, it too sat up 1/16"?
Thread Starter
Burning Brakes
Joined: Dec 2005
Posts: 992
Likes: 56
From: Baldwinsville, NY
Yes both the new dizzy and old dizzy did not sit on the intake manifold.
I did not think that new heads and intake would do that. I have some sims coming.
http://www.mr-gasket.com/ProductDeta...minselection=3
I did not think that new heads and intake would do that. I have some sims coming.
http://www.mr-gasket.com/ProductDeta...minselection=3
Burning Brakes
Joined: Dec 2007
Posts: 952
Likes: 0
Add gaskets untill the dizzy does not bottom out. If you clamp it down with a gap, your going to screw up the dizzy, shaft, and oil pump.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
I suspect there's an issue with the "vortec" intake manifold's height at distributor boss.
Would you please state brand & part number of "vortec" intake manifold?
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Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
Mike:
Maybe ... maybe ... intake gasket.
vortec intake gaskets widely available either 1/16" or 1/8" thick ... OE GM is a rather thick 1/8". If ... If you used the thinner ones ... seems the intake might sit low ... maybe ... & I dunno what you used. Maybe ... again ... it's manifold itself ... maybe ... dunno?
Maybe ... maybe ... intake gasket.
vortec intake gaskets widely available either 1/16" or 1/8" thick ... OE GM is a rather thick 1/8". If ... If you used the thinner ones ... seems the intake might sit low ... maybe ... & I dunno what you used. Maybe ... again ... it's manifold itself ... maybe ... dunno?
