Let's play name that part...
Thread Starter
Racer
Joined: Jan 2002
Posts: 488
Likes: 0
From: Woodstock GA
Let's play name that part...
It's mounted to the passenger side exhaust manifold, and has a line to thermostat housing. Also appears to have a rod that connects to something lower on the exhaust manifold that pulls up and down a piece of metal.
A big smiley face to whoever can tell me what this thing is, and why it sounds like a tinkering hammer when my car is cold. Can I remove it? Can I fix it? I dunno, but someone please tell me what it is!
Thanks!
A big smiley face to whoever can tell me what this thing is, and why it sounds like a tinkering hammer when my car is cold. Can I remove it? Can I fix it? I dunno, but someone please tell me what it is!
Thanks!
Melting Slicks
Joined: Dec 2000
Posts: 2,635
Likes: 0
From: Union Ontario
Re: Let's play name that part... (Captain_Kaboom)
When your engine is cold it blocks the exhaust coming out of that sides cylinders and forces it through the exhaust crossover in the intake manifold and out the other bank of cylinders exhaust manifold. The result is faster warm up times.
Racer
Joined: Jul 2002
Posts: 254
Likes: 0
From: Crofton MD
Re: Let's play name that part... (Captain_Kaboom)
I disconnected mine when I went to duals. Haven't missed it at all and haven't noticed any significantly long warm up problems, but I don't drive much in the winter.
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Race Director
Joined: Aug 1999
Posts: 11,123
Likes: 673
From: SE Pennsylvania
St. Jude Donor '03 thru '26
Oldtimer
Re: Let's play name that part... (Captain_Kaboom)
Keep in mind it's part of the emissions system. Getting rid of it might be against the law where you live. It's also a federal law I believe and has a penalty? :cuss
Thread Starter
Racer
Joined: Jan 2002
Posts: 488
Likes: 0
From: Woodstock GA
Re: Let's play name that part... (killain)
I just bought a replacement on ebay for $22 bucks, so I think I may just replace it. If I disconnect it- it just stays in the open position? I didn't want to pull it and have it close off half my exhaust.
How does this effect a true dual setup?
How does this effect a true dual setup?
Team Owner
Joined: Aug 1999
Posts: 30,995
Likes: 99
From: Ontario
Re: Let's play name that part... (Captain_Kaboom)
Yes, default (no vacuum) position is open. On true dual exhaust systems the passenger side provides the warm-up on its own. In pre-cat con days that side was actually called the cold side because the exhaust exiting the muffler was "cold" until the heat riser opened. Over time the relative lack of heat for those short periods led to a less efficient vaporization of acidic liquids in the muffler. And typically the passenger side muffler would fail before the driver's side. Trivia of the day ;) .