NEED ADVICE: 1983 Evinrude 9.9

[racerone]

They are 1/4-20 from the factory.

 

[CaptainOfTheMinnow]

They are 1/4-20 from the factory.

:rockon:

 

[CaptainOfTheMinnow]

Trouble getting flywheel off. Harmonic balancer removal tool is a little wide and fearful of damaging threads if I crank it down.

called around town to see if any outboard mechanics had a OMC removal tool and would let me pay them $10-20 to pop off flywheel if I brought it to them. No intentions of leaving powerhead with anyone. The flywheel nut is off just need to pull flywheel.

If that doesn’t work will have to buy the OMC tool and strap wrench.

 

[CaptainOfTheMinnow]

Ordered tool from Crowley Marine. Also realized you don’t need a strap wrench with OMC removal tool.

 

[CaptainOfTheMinnow]

Powerhead is totally disassembled. Rings all bad, Singular groove in both cylinder walls, kind of more like a flat spot than a groove. One piston has similar groove/flat spot. Crank looks good. Pictures won’t show much as it’s hard to show cylinder walls, but will try to post later.

That said, worth fixing or not? Not sure if a hone would take out flat spot in cylinder walls. Any ideas or thoughts?

 

[raczekp1]

serch ebay for oversize piston, size +20. i bought them for 45$ for 1 piston kit.
Get 2 piston kits and do a rebore job

 

[CaptainOfTheMinnow]

Friends, What year range of powerheads are bolt on to this 1983 Evinrude E10RCTR?

 

[racerone]

1980 to 1992 models.

 

[CaptainOfTheMinnow]

Thanks. Upon further review the pistons and cylinder walls are badly scored. I think it might make more sense to find a good powerhead vs cost to machine the existing powerhead for a rebore plus parts. Thoughts?

 

[racerone]

It depends on your location.----Lots of good powerheads in my area.---Your location ?---See post #4

 

[oldboat1]

If you can find one '89 and newer, the t.stat will be located at the top of the head -- far more convenient location.

 

[CaptainOfTheMinnow]

It depends on your location.----Lots of good powerheads in my area.---Your location ?---See post #4

I am in North Texas 1 hr south of Fort Worth. At first glance didn’t see much online. I wasn’t sure what you meant about post #4. Appreciate all your comments sir!

 

[CaptainOfTheMinnow]

If you can find one '89 and newer, the t.stat will be located at the top of the head -- far more convenient location.

Thanks..any idea if exhaust tube and everything else bolts right up? I will keep that in mind!

 

[oldboat1]

Likely, but can't say for sure.

 

[racerone]

What does post #48 say ???

 

[CaptainOfTheMinnow]

What does post #48 say ???

What do you think about something like this?

https://www.ebay.com/itm/Powerhead-...783479?hash=item1a7a867b77:g:pboAAOSwbF1aD6-5

 

[racerone]

It appears one party thought it was a good deal.

 

[oldboat1]

Laings is a good source here in New York. Call them if interested in that or similar powerheads at that price. There may be other options available.

 

[CaptainOfTheMinnow]

It appears one party thought it was a good deal.

That was me...I bought it! Now the real question is do I re ring this new to me powerhead or just lap the head to resurface And replace Thermostat and exposed gaskets in the process of slapping it back together? seller claimed 90 psi on both cylinders. What is max compression on these..110?

I am going to also replace water pump assy and lower unit oil.

Thanks to all for the inputs I really appreciate the advice.

 

[CaptainOfTheMinnow]

Laings is a good source here in New York. Call them if interested in that or similar powerheads at that price. There may be other options available.

Thank you sir. Just bought the one in link above! Now question is do I re ring or just lap the head and replace t stat, and reassemble.thoughts?

Replacing water pump assy and lower unit oil as well.