wrong?
What does a cyclinder down pressure test mean?
This is a power unit being used to power a shingle machine. I pulled all plugs and did a compression test starting from front to back. All cylinders but #3 are between 150 and 160. #3 is 125. I put oil in that cylinder and it brought it up to 140. All plugs are burning good-light gray color. It is not burning or leaking oil and it is not leaking antifreeze. I did a valve clearance check and that is good.
What does a cyclinder down pressure test mean?
This is a power unit being used to power a shingle machine. I pulled all plugs and did a compression test starting from front to back. All cylinders but #3 are between 150 and 160. #3 is 125. I put oil in that cylinder and it brought it up to 140. All plugs are burning good-light gray color. It is not burning or leaking oil and it is not leaking antifreeze. I did a valve clearance check and that is good.