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05-13-2013, 03:39 PM
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#1 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 977
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10 exhaust question
Is a hairline crack in the exhaust manifold bad for the valves in the head? I ask because I’ve been driving the truck like this for years without any issues. As always thanks for the advice.
84 swb 305 v8 Not sure if it matters, but it is the passenger side that has a crack.
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Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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05-13-2013, 06:49 PM
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#2 |
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Registered User
Join Date: Jan 2013
Location: Jasper, IN
Posts: 948
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Re: 10 exhaust question
I don't think so but if i was you, this is a great reason for some full legnth headers...
Posted via Mobile Device
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When in doubt, throttle it out! 1974 Chevrolet Custom K20 2005 Ford Ranger Edge 1985 Chevrolet Custom Deluxe C10 |
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05-13-2013, 07:00 PM
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#3 |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: 10 exhaust question
I don't think the valves will care. Don't know about your ears though.
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05-15-2013, 01:05 PM
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#4 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 977
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Re: 10 exhaust question
Thanks a bunch guys. I wasd so worried about screwing up my valves...all the headers I've come across will need to adjust my exhaust system due to the dual straight pipes. Plus, headers are notorious for burning hot...
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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05-15-2013, 01:18 PM
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#5 |
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Registered User
Join Date: Apr 2013
Location: Knoxville TN
Posts: 1,170
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Re: 10 exhaust question
Valves like to burn if they don't seat properly; valve can't transfer much heat to seat if it doesn't touch.
Headers have more surface area than manifold so they radiate more heat. |
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05-16-2013, 03:00 AM
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#6 |
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Registered User
Join Date: Jan 2009
Location: Louisville,Ky
Posts: 5,811
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Re: 10 exhaust question
It will just make the exhaust louder is about it.
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05-16-2013, 10:36 AM
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#7 |
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Registered User
Join Date: Dec 2011
Location: Regina, SK, Canada
Posts: 622
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Re: 10 exhaust question
Hate to rain on this one, some times a manifold crack develops due to excessive heat from a cylinder. Could mean a larger issue. If the manifold is fairly consistent coloured, it shouldn't be an issue. But if the metal is much different from the rest of the manifold (a grey)it could indicate a problem with that cylinder.
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1979 Chevy Dually Crew 4X4 454, D60 Tru-trac, D70 Detroit Locker, 3.73, 4L80E/NP205 1971 GMC 3/4 Ton 4X4 |
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05-18-2013, 11:48 AM
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#8 |
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Registered User
Join Date: May 2011
Location: Texas
Posts: 977
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Re: 10 exhaust question
Is it ok to run with open exhaust with yard driving, meaning the manifold is not connected to the exhaust pipe on the passenger side as I'm looking for a cheap replacement...could that cause any issues?
__________________
Rest In Peace:Mikhail {Mickey Rooney} Alpha 2/5/13 Omega 7/22/14 10:28AM I love you tremendously and outragiously Superpuppi Thai Ridgeback...The most intelligent dog known to me. Don't mess with my truck, my momma or my money...not necessarily in that order. ©Stand for something or fall for anything. [LIST][*]'98 Bourbon St. Brawl ©2010
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