Air filter diagram
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Air filter diagram
Can someone please draw diagram or picture of the hoses that hook up to the air filter assembly my father replaced the stock with an aftermarkt edlebrock so it dosent let the hot air in on cold mornings just all cold air
MSEE
Joined: Apr 2004
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From: Austin, TX
On the stock air cleaner housing, is a bimetallic temperature switch, with two ports. One of those ports (either one) will go to manifold vacuum. Anywhere you can find it on the intake manifold. The other port of that temperature switch goes to a little round thing on the snorkel of the air cleaner, called a "vacuum motor."
That will get you the warm-air setup back. You may also have a PCV hose going to a breather element in the air cleaner, down to the valve cover.
That will get you the warm-air setup back. You may also have a PCV hose going to a breather element in the air cleaner, down to the valve cover.
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Originally Posted by fmc400
On the stock air cleaner housing, is a bimetallic temperature switch, with two ports. One of those ports (either one) will go to manifold vacuum. Anywhere you can find it on the intake manifold. The other port of that temperature switch goes to a little round thing on the snorkel of the air cleaner, called a "vacuum motor."
That will get you the warm-air setup back. You may also have a PCV hose going to a breather element in the air cleaner, down to the valve cover.
That will get you the warm-air setup back. You may also have a PCV hose going to a breather element in the air cleaner, down to the valve cover.
Thanks alot so does the bimetallic tempture go bad?
What is the little green and white round thing between bimetal temp and the vacume motor called
and were does the choke pulloff hook seems like it might have been teed off to the bi temp switch.
Last edited by antunez13; Jan 30, 2008 at 07:13 PM.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Originally Posted by antunez13
Thanks alot so does the bimetallic tempture go bad?
and were does the choke pulloff hook seems like it might have been teed off to the bi temp switch.
and were does the choke pulloff hook seems like it might have been teed off to the bi temp switch.
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Originally Posted by antunez13
Thanks alot so does the bimetallic tempture go bad?
What is the little green and white round thing between bimetal temp and the vacume motor called
and were does the choke pulloff hook seems like it might have been teed off to the bi temp switch.
What is the little green and white round thing between bimetal temp and the vacume motor called
and were does the choke pulloff hook seems like it might have been teed off to the bi temp switch.
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MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
Sorry, I must have missed that. That's called a check valve. It lets vacuum go one way but not the other. The reason this is there is because as you accelerate, your manifold vacuum goes down. If there was no check valve in the path, the vacuum motor would lose the vacuum signal and would let the door in the air cleaner snorkel open back up at cold under-hood temperatures. The check valve keeps the vacuum that is holding the vacuum motor open from propogating back to the intake manifold. That way, once the door is shut it stays shut until the temperature rises, regardless of throttle position.
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Originally Posted by fmc400
Sorry, I must have missed that. That's called a check valve. It lets vacuum go one way but not the other. The reason this is there is because as you accelerate, your manifold vacuum goes down. If there was no check valve in the path, the vacuum motor would lose the vacuum signal and would let the door in the air cleaner snorkel open back up at cold under-hood temperatures. The check valve keeps the vacuum that is holding the vacuum motor open from propogating back to the intake manifold. That way, once the door is shut it stays shut until the temperature rises, regardless of throttle position.
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