favorite this post OMC 65 hp Evinrude 1972 engine part-out, 3-cylinder, long shaft - $1 (Holland, MI) hide this posting unhide

make / manufacturer: Evinrude
model name / number: 652739

Parting out a 1972 OMC 65 hp Evinrude outboard boat motor. It is long shaft (for a 20" tall transom), 3 cylinder, electric start. Engine tag on the transom clamp shows: Model # 652739 and Serial # J_01_7569. I need to clean it up before I take pictures, it was also handled a bit roughly on it's way to me and that's how a few wires on the harness go cut, the lower cowl bowl got damaged, and some scratches happened (prop is a bit bent too). This is a manual trim & tilt unit, no power trim was installed.

My assessment of what I have. This was a relatively new, low hours motor when it was pulled from service and put into storage. Freshwater only, trailered (not left docked in the water), and has something wrong with the #3 cylinder, I suspect the connecting rod bearing at the crank is loose.

My diagnostic procedure and observations, feel free to draw your own conclusions:
1. Pulled the spark plugs and sprayed fogging oil into each cylinder (engine has sat for an unknown amount of time).
2. Cycled the crank and observed engine rotates freely and smoothly.
3. Using a set of jumper cables to the starter connection, I cranked over the engine and used a Lisle compression tester on each cylinder, throttle control is propped open so the butterfly valves in the carbs don't choke the engine and an accurate compression test can be done.
4. Cylinder #1 tested at 140 psi, #2 tested at 155 psi, and #3 at 90 psi.
5. Everything sounded smooth and perfect until I installed the compression tester in the #3 cylinder. As the cylinder cycled under load, there was an audible clack sound. I also observed casting damage to the windeage tray on the opposite side of the engine, leading me to believe that the connecting rod bearing is either loose or partially separated from the crankshaft. I have not split the case open yet to confirm this, but that's my suspicion. If time allows as I dismantle the motor, I will open it and confirm or update this listing. There is already one interested party in the engine block / head, but he isn't committed to it yet. This engine has never been apart and the perfect paint on the bolt heads reflect that.

Parts available:
- The entire lower unit, looks intact except for a chip out of the skeg, and drivetrain turns great when I compression tested the cylinder head. This should fit on any Johnson / Evinrude that takes the electric shift system for this class / size of engine. I think it fits the V-4 motors but I need to confirm first.
- Mid-section. Has damage to the bottom of the cowl (aluminum bowl at the top of the mid that mates to the cowl) but otherwise the midsection is complete.
- Fuel pump. The round fuel filter cover has a broken nipple but that's easy enough to get.
- Starter. Cranks really well, gear teeth look almost brand new.
- Ignition coils (all 3x of them).
- Ignition CDI block.
- Stator / charging system for the battery.
- Low mileage spark plugs.
- Wiring harness, has a couple repairable cuts but otherwise looks almost new.
- Flywheel (might be spoken for, have an out of state offer trying to arrange transportation).
- Handles for cowl.
- Complete engine block / cylinders / head / crank / etc. See notes above.
- Carburetors, throttle connections, and intake housing air box that mounts in front of the carbs to suppress the reversion pulse noise.

What's gone or not available:
- Cowl.
- Boat side wiring harness.
- Controls.

Thanks for looking, please feel free to make offers. God bless and have a great day.

P.S. If you are asking about the Mercury 50 hp in the background, it's a short shaft that belongs to a friend of mine, he may be willing to sell for the right price. All cylinders test between 145 to 155 and it's complete with some cosmetic damage but has no controls or boat side wiring harness.
  • do NOT contact me with unsolicited services or offers

post id: 6885719531



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