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time for a valve job ? 120-130 1967

posted by  riverbend on  Sat Oct 25 07:06 CST 2014
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last visit: Wed Oct 22 15:29 CST 2014
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Did a compression check on our '67 P220 last night. This car has unknown mileage, but could be north of 300,000 miles. Results were:

Cyl. Pressure
#1 175 psi
#2 170 psi
#3 175 psi
#4 190 psi

Added oil to each cylinder and the pressure came up between 0 and 5 psi.

I was a little surprised that the compression was so even until I got to #4. Then I was surprised that the compression was so even in the low cylinders. Valve adjustment was off a little on the exhaust valves, 0.001"-0.003" too tight. Three uniformly leaky valves ?

Time for a valve job or time to take the head off and see what's up with cylinder #4 ? Other ideas ?

Greg





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New time for a valve job ? [120-130][1967]
posted by  riverbend subscriber  on Sat Oct 25 07:06 CST 2014 >


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