1979 Chevy Truck hot exhaust

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RJLANEY
  • MEMBER
  • 2 POSTS
Engine Mechanical problem
1979 Chevy Truck V8 Four Wheel Drive Automatic

truck had a new crate moter when i got it but had burnt valves in #2 cylinder had valves replaced and heads resurfaced, now exhaust is very hot, also replaced cat converter and exhaust system. new cat smells like sulfer bad, truck not getting hot but exhaust is. is it timing? or carboration? what else can cause the high temp? i think this it what caused the valve problem in the first place. thank you.
Jan 21, 2009 at 1:50 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

The first thing i would be looking at is getting an exhaust gas test and checking that its not running very lean, as this will cause overheating.

mark (mhpautos)
Jan 21, 2009 at 9:58 PM
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