Double wammy!

[DUNK51]

I was running on the lake and the engine stoped running suddenley I tried to start it back and it would not spin over So I dropped my trolling motor and fished for a couple hours and tried to start it again and it cranked but no power. Broke the engine down and found one badley burned piston and one gaulded piston on the same side. Also decided to check out a soft spot in the floor and did not turn out good, rotten to the stringers.:grumpy:To try to shorten this up. The boat is a 1977 TERRY AFB 15 and I like it so the boat will be restored. I am a mechanic that has very little knowledge on outboard engines. What concerns me is if i rebuild the engine what made it burn the pistons on the same side? reeds look good and carbs are good.

 

[alldodge]

Re: Double wammy!

What size/make/year engine is the outboard?
My first thought of what happened is no oil was making it to the cylinders. Does it inject or mix the oil?

 

[DUNK51]

Re: Double wammy!

oops! 1977 evinrude 85 hp.

 

[Chinewalker]

Re: Double wammy!

Could have been a cooling issue. Blockage on that side? Thermostat?

Not an oiling issue- no oil injection on that motor.

 

[alldodge]

Re: Double wammy!

Agree not oil injected, probably cooling as Chinewalker stated and could be aggravated if the timing is off.

 

[boobie]

Re: Double wammy!

Maybe lean carbs or water deflectors on that side.

 

[DUNK51]

Re: Double wammy!

thermostat is new. water deflector? rubber things between the cylinders and block?

 

[boobie]

Re: Double wammy!

Yes.......They direct water flow to the proper place in the block for proper cooling. If they are swelled up, they should be replaced.

 

[DUNK51]

Re: Double wammy!

I looked at them they look old and hard but intact. I am woundering about the ware on the engine it ran good and started good but it was tired 85lbs compression on all cylinders. do you think this could have caused it?

 

[pn]

Re: Double wammy!

off the topic but wouldn't it be much easier to buy an new old boat (dry) with a good motor and start from there instead of killing yourself with all the trouble...

 

[DUNK51]

Re: Double wammy!

what would be the fun in that? besides I need something to keep from doing the laundry:joyous:

 

[boobie]

Re: Double wammy!

Buy an OMC Factory Service Manual and keep on working on it. And you'll find out it's fun and you'll learn something. You can always get back on here for any questions you have.

 

[DUNK51]

Re: Double wammy!

I have a manual and will be rebuilding it. Working on stringers on good days and engine on bad days. Thanks.

 

[DUNK51]

Re: Double wammy!

Went fishing today! cold and rainey, I lucked up on a 12' jon boat $100 bucks put a trolling motor on it to use while I repair my bass boat.:joyous: The day started out good it worked well and i caught 1 fish came back in after a while. while unloading the boat must have been thinking of my bass boat stepped on the side and went swimming:grumpy: got to get the boat repaired soon!!!!!!!!