Exhaust valve p.side
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Member
Joined: Aug 2004
Posts: 439
Likes: 84
From: Northern Arkansas
Car: 1982 MSE, 1988 S10 Blazer
Engine: 305 in both!
Transmission: 200c / Th700r4
Axle/Gears: 3:73 / 3.42
Exhaust valve p.side
What does this vacuum operated exhaust valve do? Can I unhook it? It's makeing a rattling noise.
Supreme Member
Joined: Jan 2004
Posts: 2,322
Likes: 100
From: So. Ohio
Car: 88 Camaro
Engine: L98 350
Transmission: 700r4
Think this is a heat riser for cold weather operation. I'd guess the vacuum closes it and it would fail to the open position so if it quiets it down with the vacuum unhooked, do it.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
It blocks the passenger side manifold so that the exhaust has to go through the crossover under the manifold to warm it up.
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