things to check on ob motors

[millerpdt]

hello-if looking for used boats-what would you check on the ob motor for any warning signs-should the prop spin freely??? looking at a motor but prop is very hard to turn by hand-normal?? thanks

 

[JB]

Re: things to check on ob motors

Howdy, Miller.<br /><br />Your best bet is an on-the-water demo.<br /><br />Engine starts easily, cold or hot. Does not hesitate when placed in gear, idles smoothly in or out of gear.<br /><br />Engine reaches and maintains operating range rpm (5500-6000rpm) under load without overheating.<br /><br />Demos "on the muffs" are of limited usefulness. Bad engines can start and sound fine without a load on them.<br /><br />Good luck.

 

[kenthrussell]

Re: things to check on ob motors

Well what I would do is overall visual inspection, pull the plugs and have a look at them , pull the bottom plug for the gear lube and check for any metal filings, compression test will tell you a lot, ..and of course make and year, and last but not least price! and of course the old water test as JB said ..