Whats up with this?
Feb 26, 2023 | 02:20 PM
Thread Starter
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Whats up with this?
My 73 is blowing out watery soot on the left side exhaust, for a minute on start up any ideas on cause?
Feb 26, 2023 | 03:32 PM
Le Mans Master
Joined: May 2002
Posts: 5,086
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From: Lebanon Township New Jersey
Here is a guess. Water is from condensation on the cold exhaust pipes. Soot is from normal deposits in the pipe. Left side only is due to exhaust heat riser during warm up.
Feb 26, 2023 | 03:39 PM
Just another Corvette guy
Joined: Feb 1999
Posts: 8,518
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From: Palm Springs, CA.
Time to take it out for a good carbon run.
Feb 26, 2023 | 03:44 PM
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Joined: Aug 2018
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Has headers on it. Remember my old man saying time to take the
1972 Olds
and "blow the carbon out."
Feb 26, 2023 | 04:22 PM
Melting Slicks
Joined: Apr 2019
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From: Clark, NJ
Italian tune-up time.
Feb 26, 2023 | 04:26 PM
Joined: Aug 1999
Posts: 14,380
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From: At my Bar drinking and wrenching in Lafayette Colorado
Quote:
Originally Posted by
twa1457
My 73 is blowing out watery soot on the left side exhaust, for a minute on start up any ideas on cause?
Completely normal.
Feb 26, 2023 | 09:19 PM
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From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
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Cruise-In VIII Veteran
Feb 27, 2023 | 06:46 AM
Racer
Joined: Sep 2021
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From: Upstate South Carolina
I thought the saying was to "blow the carbs out"
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Feb 27, 2023 | 11:15 AM
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