This intake leak bad or "normal"?
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
This intake leak bad or "normal"?
I have two people tell me this looks normal and another it is not. The one guys says the intake is sitting too high and needs to be milled down to match the heads better.
What do you guys think?
[Modified by ericcer, 8:44 PM 4/15/2004]
What do you guys think?
[Modified by ericcer, 8:44 PM 4/15/2004]
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: This intake leak bad or "normal"? (dgoodhue)
Picture doesn't work.
The direct link to the picture is
http://web.tampabay.rr.com/eac/vette/images/leak.jpg
[Modified by ericcer, 6:45 PM 4/15/2004]
[Modified by ericcer, 8:35 PM 4/15/2004]
[Modified by ericcer, 8:38 PM 4/15/2004]
Racer
Joined: Mar 2002
Posts: 498
Likes: 21
From: Maine
Re: This intake leak bad or "normal"? (ericcer)
Have your heads been milled? If so, there is a formula you can use to get things lined up. According to the book How to Rebuild Small-Block Chevy LT1/LT4 engines, if you remove .020" or more from the combustion deck surface of the heads, corrective material removal from the intake port deck and intake-to-block rails will be necessary.
Combustion deck removal amount times 1.2 = material to remove from intake port side
Combustion deck removal amount times 1.7 = material to remove from intake manifold rails
Also, it looks from the picture you posted, that the intake gaskets were coated with high temp silicone. That could be your problem. Those gaskets should be put on dry. No silicone.
The only areas that silicone should be used is on the font and rear block surfaces.
[Modified by 93Blackrose, 8:19 PM 4/15/2004]
[Modified by 93Blackrose, 8:21 PM 4/15/2004]
Combustion deck removal amount times 1.2 = material to remove from intake port side
Combustion deck removal amount times 1.7 = material to remove from intake manifold rails
Also, it looks from the picture you posted, that the intake gaskets were coated with high temp silicone. That could be your problem. Those gaskets should be put on dry. No silicone.
The only areas that silicone should be used is on the font and rear block surfaces.
[Modified by 93Blackrose, 8:19 PM 4/15/2004]
[Modified by 93Blackrose, 8:21 PM 4/15/2004]
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Re: This intake leak bad or "normal"? (ericcer)
You are not authorized to view this page.
^^ that's why you can see it and we can't. :beatdeadhorse:
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Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: This intake leak bad or "normal"? (JAKE)
I renamed the JPG because it was not all lower case. I use IE for my web browser at work and at home and some web browsers can't deal with case. I am just guessing as to why some (all) cannot see the picture.
I could not upload it to my website here at CF which normally works.
I could not upload it to my website here at CF which normally works.
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: This intake leak bad or "normal"? (93Blackrose)
Have your heads been milled? If so, there is a formula you can use to get things lined up. According to the book How to Rebuild Small-Block Chevy LT1/LT4 engines, if you remove .020" or more from the combustion deck surface of the heads, corrective material removal from the intake port deck and intake-to-block rails will be necessary.
Combustion deck removal amount times 1.2 = material to remove from intake port side
Combustion deck removal amount times 1.7 = material to remove from intake manifold rails
Also, it looks from the picture you posted, that the intake gaskets were coated with high temp silicone. That could be your problem. Those gaskets should be put on dry. No silicone.
The only areas that silicone should be used is on the font and rear block surfaces.
Combustion deck removal amount times 1.2 = material to remove from intake port side
Combustion deck removal amount times 1.7 = material to remove from intake manifold rails
Also, it looks from the picture you posted, that the intake gaskets were coated with high temp silicone. That could be your problem. Those gaskets should be put on dry. No silicone.
The only areas that silicone should be used is on the font and rear block surfaces.
Racer
Joined: Mar 2002
Posts: 498
Likes: 21
From: Maine
Re: This intake leak bad or "normal"? (ericcer)
.The heads weren't supposed to be milled. Sounds like you are saying to it is not normal to have the gaskets looking wet.
Melting Slicks
Joined: Apr 2000
Posts: 3,198
Likes: 2
From: Northern CA
Re: This intake leak bad or "normal"? (93Blackrose)
Thread Starter
Drifting
Joined: Jul 2001
Posts: 1,296
Likes: 0
From: Largo Florida
Re: This intake leak bad or "normal"? (JasonL)
