1990 60 h.p. evinrude over heated

dearl

Seaman
Joined
Jul 5, 2009
Messages
54
Hi all, I recently purchased a 60 evinrude knowing that the engine had been ran hot. The engine is not seized up, and looks to be in great condition. The guy just got the motor out of the shop in the spring, the carbs were rebuilt, and a new impellor was installed in the water pump. The guy thinks that the pump failed under way, and he and his father limped back to shore, shutting the motor off and on to get back to the beach. I inspected the motor to the best of my ability, and the rubber hose leading to the telltale was actually melted to the head. I did a compression test, and got 90 and less on all 3 cylinders. Knowing that the engine will at least be honed and reringed, depending on the cylinder measurements, what else do I need to be aware of with an engine that is known to be ran hot? I noticed on the pistons that he engine has .020 pistons in it, so Im sure that it has been into before, but The guy stated that the motor was running when he took it off the boat, but he repowered the boat instead of repairing it. I have repaired some outboads in the past and I'm pretty sure I can tackle this rebuild if need be, I just want to make sure I don't over look anything.
 

SparkieBoat

Captain
Joined
Aug 17, 2009
Messages
3,643
Re: 1990 60 h.p. evinrude over heated

I would have left that engine alone. Many parts may be harmed by over heating, bearings, crank shaft along with numerous other parts, probably needs total rebuild. I would hate to spend all the time and money on just the pistons only to have a rod break.
 

bktheking

Vice Admiral
Joined
Jul 29, 2008
Messages
5,057
Re: 1990 60 h.p. evinrude over heated

So pull it apart and check for evidence of overheating. It can't be that bad if you are getting 90 psi + or - 10% across the cylinders. Or put it on a boat and run it till it pops, what's your budget???? If it's already been bored once already you can't hope for much, chances are it's been around the block, pardon the pun.
 

Mas

Lieutenant Commander
Joined
Oct 3, 2006
Messages
1,656
Re: 1990 60 h.p. evinrude over heated

Do a spark gap check and ensure a hot blue spark.

Mas
 
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