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Author Topic: Need Ideas For Home Made Pressure Tester,  (Read 6874 times)

Offline MotorGeek - Jerry Hall

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Re: Need Ideas For Home Made Pressure Tester,
« Reply #25 on: July 05, 2013, 08:42:40 am »
JH, what Do you use to prevent the exhaust valve from leaking? Recommendations on how long a motor should hold air pressure?

You can get a rubber bladder at a plumbing supply store that can be inserted into the exhaust port between the piston and power valve hole in the bottom of the port.  The carbon will have to be removed from the port or the bladder may not seal when inflated.

Zero leakage is ideal but a few psi per minute will not usually cause enough of an air leak to cause the engine to run lean.  Do not put over 10 psi into the crank case.

 

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