Stop wasting time!

My latest purchase proved to be an interesting one, but might have been a financial disaster. This 1997 Galaxy 17 foot i/o with a volvo penta 1991 straight 4 Cylinder OH looked good, but when testing it i found zero compression. First thing i did was open up the cam cover and measure the clearance between the tapetts and the nodes on the camshaft though there was excess clearance i will have to check the timing belt before i fraw any conclusions. When i baught the boat, the seller informed me that he had not been able to get the timing right.