1973 65hp evinrude, info please

[chattyrona]

Can someone tell me if a 1973 65hp evinrude would be a good outboard to buy for $600 to $700 if it appears to start well in a persons yard in a barrel of water? Can't take it out on the water but the guy will start it in his yard before we buy it. He says it works and he replaced the water pump. Also he says it is standard shaft length, and I'm wondering how I would know if that length would work on the boat I want to put it on. Can someone give me some suggestions or info as I am thinkng of getting this one. Model#65ES-73R Serial#J3839021 Thank you.

 

[tashasdaddy]

Re: 1973 65hp evinrude, info please

well standard length is either short or long shaft they are standard lengths. 15 or 20 inchs from where it sits on the transom to the plate just above the propeller, you need to measure your boat transom in the center where the motor will sit. barrel running only proves it will start. there is no way to put a load on it. check compresson, on all cylinders, should be over 100 psi and with in 10% of each other. look for discolored or pealing paint, signs it has ran hot at one time. look for scarred bolts, as it has been taken apart, ask why?

 

[F_R]

Re: 1973 65hp evinrude, info please

Discolored paint. Very important!! If those motors get even a hint of overheated, it warps the baffle plate in the exhaust cover. Then it squirts water into the cylinders, resuluting in catastrophic failure. The guy says it has a new water pump. Is that because it didn't work, or just as maintenance?

 

[jay_merrill]

Re: 1973 65hp evinrude, info please

This motor was available with in a 15" length but I think standard length was considered to be 20". As was mentioned, measure from the height of the tabs on the transom bracket that would be touching the top of the transom, if mounted in the lowest position (this varies by which bolt holes are used). to the cavitation plate.

As mentioned, a 100 psi minimum, with no more than 10% differential between the cylinders is something to look for. That said, you might see numbers that are even higher. The OMC triples of that era were fairly high compression motors. For example, my 1972 65hp Johnson still shows values of very close to 138 psi on all three cylinders.