Posted by chriscase on Sunday, September 04, 2005 at 5:24PM :
In Reply to: Re: PCV port is below carb, pass side. posted by Robert N. on Sunday, September 04, 2005 at 2:47PM :
The crankcase exhaust pipe is also known as a road draft tube, about 1 1/4" dia?
The smaller tube was originally to vent the crankcase into the manifold when fording. Later it became a pollution control device called a PCV. It contains a valve, the pcv valve, that can go bad and cause a vaccuum leak.
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