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Old 07-13-2017, 10:01 AM   #26
marc hildebrant
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Join Date: May 2010
Location: Cape Cod
Posts: 1,128
Default Re: Stuck\Broken Valves ?

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100IH

Performed the hissing test. I could hear a distinct hiss from number 4 with number 3 sparkplug installed, while I cranked the motor.

Also, I had noticed some bubbles in the water in the past.

Maybe its time to install a higher compression head...

Marc
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