70hp overheated

[Dan]

I'm looking at buying a '87 70hp that has been run hot. The water pump has been since replaced. Now it has a slight knocking noise coming from it. I haven't heard it run but, I trust the man I'm buying it from. Worse case scenerio, were would the knock be coming from? Thanx

[Ken]

Dan,
The knocking you hear could be piston slap or connecting rods - I would do a compression test on the motor.
Good luck,
Ken K

[Dan]

Thats what I'm hoping for. Whats the chance the crank could be bad?

[Ken]

Dan,
I am not real familiar with the damage that can be caused by overheating a 2-stroke outboard,
but I would think that the crank would be about the last thing that would get hurt. I would expect that a piston would seize up before the crank got damaged.
You really need a trusted marine mechanic to check out the outboard and give you an evaluation.
Just try to give him a complete history, as much as you can, about what the outboard has been thru.
That's what I would do if I had any questions about the extent of any possible damage from overheating.
Good luck,
Ken K

[Dan]

Thanxs Ken, $400 for everything w/ss prop. I can't go wrong with that.

[Ken]

Dan,
Your right - heck, for that amount you could turn around and sell it on e-bay for more than that just for parts.
Good luck,
Ken K

[Dan]

Just in case Ken, I grew up an hour from you. If I do have to part it, pass the word.

[miss kate]

I need the Power tilt and trim unit if it is working and not all corroded up. $150+shipping or your price for unknown operation to 11937.
Jason

[Dan]

I'll let you know, I'm picking it up this weekend.