exhaust flapper

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exhaust flapper

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Blazer >> Modifications >> Performance & Brainstorming >> Headers, Intake, & Exhaust >> exhaust flapper

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exhaust flapper - 7/7/2008 10:46:46 PM

curse

Posts: 171
Joined: 3/27/2008
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So I''ve seen a few post on moisture getting in the muffler when left over night. So My question is would the moisture problems be solved if a flapper be installed at the end of the tailpipe as the big rigs do. then again this wont work unless the pipe is facing strait or up.

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RE: exhaust flapper - 7/8/2008 4:51:35 AM

swartlkk

Posts: 14299
Joined: 5/1/2005
From: Waterloo, NY
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No. Moisture gets pulled into the exhaust in the form of water vapor that is in the air (humidity dependent). As the air cools over night, the moisture condenses into water.

The only reason to have a rain cap is if your exhaust points straight up.

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Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to curse)

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RE: exhaust flapper - 7/8/2008 5:35:31 AM

pbishop

Posts: 40
Joined: 5/26/2008
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And even then.... I think the last time a rig left the dealer with a rain cap was in the 80''s.

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RE: exhaust flapper - 7/8/2008 5:41:12 AM

swartlkk

Posts: 14299
Joined: 5/1/2005
From: Waterloo, NY
Status: offline

Exactly. Now everything is stainless so who cares about condensation in the pipes! LOL None of the tractors come with rain caps either anymore.

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Kyle-

2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to pbishop)

Post #: 4

RE: exhaust flapper - 7/8/2008 2:26:38 PM

curse

Posts: 171
Joined: 3/27/2008
Status: offline

alright thank you for the reply.

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Post #: 5