Evinrude 235 Rebuilt

[mbeuro]

Wish I knew what year this engine is. A clue might be the stop screw that stops against the block at wot. And the ignition coils were factory hard wired into the harness. It is the 2.6 bore. I bored it .030 and used wiesco pistons , completely rewired it and brand new 1 3/8 Carbs all new crank bearings and seals and gaskets. Should drop it in by January fingers crossed for a good break in without any troubles. I’ll be running this 32 to 1 for a while

[mbeuro]

The model number on the unit comes out to an 87 175 but pretty sure the power head has been replaced.
By the way I have seen the inside of my block and the frost or freeze plug that has the numbers stamped in it does not go all the way through to the water jacket So it is just for ID It is not a real freeze plug

[z1rider]

What are the part numbers on the cylinder heads?

[BarryStrawn]

Paint color suggests 1983 or 1984.

[James45157]

i would run a few gals of 25 to 1 first wesico need more clearence

[FMP]

Disagree, finish to size on box, many heat cycles during first 10hrs break-in. Don't over oil the first hrs.
JMO

[James45157]

why do you say that they teach at the factory to run 25 to 1 for a few gals of gas ihave built a lot of omc with wiesco the factory says 25 to 1 first few gals of fuel

[James45157]

bin rebuilding motors for close to 30 years they dont teach that at the factory

[Forkin' Crazy]

The model number on the unit comes out to an 87 175 but pretty sure the power head has been replaced.
By the way I have seen the inside of my block and the frost or freeze plug that has the numbers stamped in it does not go all the way through to the water jacket So it is just for ID It is not a real freeze plug

What are the numbers on the plug?

[FMP]

bin rebuilding motors for close to 30 years they dont teach that at the factory

Yeah I've done 25:1 plenty the first couple gallons, no more than that, like 32:1 for the brake in , then 40:1. Lots of heat cycles. Not spraying them or mad rpm and huge race heat soaking but high psi and near lean with good running temp, didn't follow the old school of thought about needing extra clearance, never had issue, just good oil at 40:1 and no stupid abuse.

[mbeuro]

What are the numbers on the plug?

392863 : best I can tell I didn’t know that anybody could tell anything from the plug anymore

[mbeuro]

Paint color was a miss mixed quart they gave me at the paint store. Hey it worked fine for me

[mbeuro]

929 8 something can’t read it anymore after about 4 coats of paint

[perfmarine1]

No water cooled voltage reg means old electrics 78-79 how about a picture of ignition packs or pack.

[Forkin' Crazy]

I have an OMC model number reference. That sounds like a part number, so it may be a replacement block. It should start out with the horse power then letters.

So are the intake ports plunge milled or CNC??

BTW my 80 235 doesn't have water cooled regulator either.