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I was helping my buddy solve a problem with his 302 which is running very rough. I took the breather off and covered the carb and it didn't affect the running of the car at all. It didn't want to stall or even idle differently. Would this indicate a bad carb to intake gasket? Should that be the first thing to should change before a carb rebuild?
thanks for any help in advance.


Keep those Ponies rolling.. don't crush them!!!
 
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If you just put some cloth over the intake I can understand why it didn't stall. If you covered the intake air-tight, then the engine should have stalled almost immediately.

But if the gasket is bad, then you'd have a vacuum leak. A vacuum leak upsets the fuel-air mix resulting is bad running/surging idle. You can try and replace the gasket between carb and intake manifold first but there are also gaskets on the carb that can cause a vacuum leak if they're bad.

If you are going to rebuild the carb it means taking if off the engine and taking it apart. That automatically means replacing every gasket since they can only be compressed once.
 
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