I just did a dry/wet compression test on the car and don't really know what to make of the results. The car is a 1964 1/2 Mustang with a 260 V8 and about 98K Miles. It hasn't been driven much at all since 1985, but I believe the previous owner had a mechanic that would start the car occasionally and do routine maintenance. I don't know if it has had any work done to the engine like a valve job or anything within the block.

Cylinder Wet Dry
1 127 120
2 130 130
3 125 125
4 125 120
5 135 132
6 145 125
7 125 120
8 130 125

All seemed to be within 10 PSI of one another except Cylinder 6 on the wet test. I may have added a little more oil in that one so maybe that was the reason for the higher reading.

Do these seem to be within spec for a car that is 55 years old with almost 100,000 miles? Is there anything here that might lead you to believe something is wrong?

Thanks in advance.

 

No this looks good to me. With compression values of that number and std deviation I would expect no trouble from this engine cylinder or piston wise.

 

Thanks for the reply on both of my posts. I appreciate the information. 👍🏻