Is this right??? BB Manifold Question--
Thread Starter
Melting Slicks
Joined: Oct 2000
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From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Is this right??? BB Manifold Question--
Getting ready to put the manifold back on (ain't it pretty?), and I noticed that the upper oil passage in the middle of the picture below is only covered by gasket material, not by the manifold. Can that be right? What the heck keeps it from leaking? I realize I'm probably demonstrating massive ignorance here, but that just don't seem right to me.
JB
JB
Burning Brakes
Joined: Feb 2002
Posts: 752
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From: Melbourne Australia
Re: Is this right??? BB Manifold Question-- (JB)
I've had my manifold on and off a few times, the manifold looks like yours......my heads don't have that oil port, it sure doesn't look like that.....when the manifold bolts up.
Joe
69 427L36 M21 3.08 White Coupe
Joe
69 427L36 M21 3.08 White Coupe
Thread Starter
Melting Slicks
Joined: Oct 2000
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From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Re: Is this right??? BB Manifold Question-- (jyounane)
Oh, crap. That's right where the damned thing was leaking, too. Has this thing got the wrong heads on it? Here's a pic without the manifold. Anybody?
JB
[Modified by JB, 9:21 PM 6/5/2002]
JB
[Modified by JB, 9:21 PM 6/5/2002]
Burning Brakes
Joined: Feb 2002
Posts: 752
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From: Melbourne Australia
Re: Is this right??? BB Manifold Question-- (JB)
I can show you a picture of my manifold / heads. Do you have an email address I can use, I don't know how to post pictures here yet.
Joe
Joe
Team Owner
Joined: Jul 1999
Posts: 26,545
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From: Huntersville NC
Re: Is this right??? BB Manifold Question-- (JB)
the upper oil passage in the middle of the picture below is only covered by gasket material
ohhhh... that hole above (in the pic) the intake manifold......hmmmmm.
[Modified by MNJack, 10:58 PM 6/5/2002]
Melting Slicks
Joined: Jun 2001
Posts: 2,340
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From: Moro IL
Re: Is this right??? BB Manifold Question-- (JB)
What you should be looking at is your heat crossover passage, no oil circulates through the intake. Are your head casting numbers correct? My heat crossover looked nothing like that and was only the size of the heat crossover port on the intake manifold (I'm running a 68 L-36 intake).
:cheers:
Pat Kunz
:cheers:
Pat Kunz
Team Owner
Joined: Jul 1999
Posts: 26,545
Likes: 46
From: Huntersville NC
Re: Is this right??? BB Manifold Question-- (73 LS-4)
Pat, I think he is talking about that gaping hole between the intake manifold and the valve cover in the top pic (dont look at the intake manifold itself)
JB, While we are checking, what is the # on the intake? MJ
JB, While we are checking, what is the # on the intake? MJ
Drifting
Joined: Jan 2002
Posts: 1,645
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From: Schaumburg IL
Re: Is this right??? BB Manifold Question-- (JB)
JB,
No that does not look right. But, maybe someone that has set and intake on BB heads without the gasket can tell. The heads appear to be standard BB large oval port heads. Post the head numbers (under the valve cover) and the manifold number (stamped on top 6 digits) and we can tell. Is this the origional intake?
No that does not look right. But, maybe someone that has set and intake on BB heads without the gasket can tell. The heads appear to be standard BB large oval port heads. Post the head numbers (under the valve cover) and the manifold number (stamped on top 6 digits) and we can tell. Is this the origional intake?
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Burning Brakes
Joined: Feb 2002
Posts: 752
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From: Melbourne Australia
Re: Is this right??? BB Manifold Question-- (JB)
Incidentally, your photo of the heads looks familiar. I think mine could actually be the same. That top port reduces heat from coupling from the exhaust crossover to the head. It is probably simply covered by the gasket. I think the top port above the round exhaust crossover port is not connected into the oil space anywhere and probably should not leak.
Perhaps you could have a closer look.
I don't think the heads or the manifold are wrong.
I have emailed a photo of mine.
Joe
69 427L36 M21 3.08 White Coupe
Perhaps you could have a closer look.
I don't think the heads or the manifold are wrong.
I have emailed a photo of mine.
Joe
69 427L36 M21 3.08 White Coupe
Instructor
Joined: Aug 2001
Posts: 215
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From: Concord Cal
Re: Is this right??? BB Manifold Question-- (jyounane)
The top cavity does nothing. It is covered by the gasket and is a good place for liquids to find there way into. That is why you thought it was an oil passage.
Thread Starter
Melting Slicks
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From: TEXASTEXASTEXASTEXAS TEXASTEXASTEXASTEXAS
St. Jude Contributor
Re: Is this right??? BB Manifold Question-- (oger)
The top cavity does nothing. It is covered by the gasket and is a good place for liquids to find there way into. That is why you thought it was an oil passage.
The number on the intake, BTW, is 8947801 (hmmm, that's seven #s, not 6?). I'd pull the valve covers and get the head #s, but I'm just too darned tired. Tomorrow.
I gotta chill out. I'm taking this stuff way too seriously! I never got panicky about my '78 like this. I wonder why that is? :D
JB
[Modified by JB, 11:03 PM 6/5/2002]
[Modified by JB, 11:11 PM 6/5/2002]
Burning Brakes
Joined: Aug 2001
Posts: 1,124
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Re: Is this right??? BB Manifold Question-- (JB)
Learn something new about the 'Vette every day. Just looking at a picture of my L36 and you can see the extra gasket material in that same area.
Hope it helps you chill some! :D
:cheers:
Tom
Hope it helps you chill some! :D
:cheers:
Tom
Drifting
Joined: Jan 2002
Posts: 1,645
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From: Schaumburg IL
Re: Is this right??? BB Manifold Question-- (427_Roadster)
Learn something new about the 'Vette every day. Just looking at a picture of my L36 and you can see the extra gasket material in that same area.
Hope it helps you chill some! :D
:cheers:
Tom
Hope it helps you chill some! :D
:cheers:
Tom