never buying another Johnson


Stupid motor only lasted 25 yrs. /sarc

Is piston supposed to look like this?

Appears to have eaten a ring. Inside of head looks like tip of piston.

Old girl ran like a top for a long time. Never failed to get me home. Not one time.

Guess it's time to start researching repower options.


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17' Henry O Hornet w/ Johnson 88 spl
26' Palmer Scott project hull
14' Bentz-Craft w/ Yamaha 25
Replies

thats the flaw in your argument...
max RPM is not constant.
if you had unlimited horsepower, max RPM would be limited only by the rev limiter.
You do not have unlimited horsepower.
changing the prop pitch changes the load on the engine.

think of it like riding a 10 speed bike up a slight hill
you are the engine.
you have a limited amount of power.
if you try to ride that bike in 10th gear, your RPMs are going to be much slower than if you change to 1st gear.
same engine, same bike, same hill, changing the gear( the prop pitch) will change the speed at which you can pedal (prop rpms)


www.teamcharlestonmarine.com
IF I RESPOND IN ALL CAPS, ITS NOT ON PURPOSE, AND I AM NOT YELLING
Well, I got the answer(s) I wanted. Was that old 2-smoker actually running on 3 1/2 cylinders for its entire life? Yes. It was.

And, would a healthy 90hp motor (or, at least, this 88spl with 4 decent pistons) push that hull significantly better than a crippled one? Yes. Top speed picked up from just under 30 mph to about 35. I now know that I really think that hull needs a 115. 90 is adequate. But, just adequate.

Checked compressions a few weeks back to see what the new rings were doing having had some time to get seated. Holes 2-4 were still hanging around the 105-110psi range. The new piston/rings/honed cylinder were at 138psi. When I saw that, I liked the quality of the repair on hole #1 and, at the same time, knew that she would not tolerate that kind of delta across the compression numbers. Weekend before last, took the grand kids for a ride and noticed a slight plinking noise and said to wife, "That's new". A few minutes later hole #2 gave up the ghost. Slow cruise through Wappoo Cut headed to the landing and heard it happen. Could literally hear parts rattling around in the cylinder as it munched them up and spit them out. Idle rpm dropped and but she kept running and maintained a 25 yrs record of making it on to the trailer every time.

So, we'll be restricted to the Bentz for a while. Will pull the motor off of the Henry O, clean her up good, do some cosmetic glass touch ups, and may disassemble and paint her. New power in the Winter/Spring time frame.




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17' Henry O Hornet w/ Johnson 88 spl
26' Palmer Scott project hull
14' Bentz-Craft w/ Yamaha 25
SORRY TO HEAR IT DIDNT STAY TOGETHER.
THATS A LOT OF WORK


www.teamcharlestonmarine.com
IF I RESPOND IN ALL CAPS, ITS NOT ON PURPOSE, AND I AM NOT YELLING
Sad news my man.

The new ones won't last as long as that one did. You'll need a computer to find the electrical parts that fail that keep the "new" motors running. It is nice to turn a bolt and they don't break though.

Best to you and thanks for sharing.


The ENTER-NET Fisherman
Can't leave on such a morbid note.....

This happened.



Over the Winter, put a new SeaCast transom in and hung a new Yammer Hammer 115. Have only tried to start her once when she was already running. The tell-tail peeing in the water is the loudest part (at idle.... she makes noise when hauling a55).

Anyone interested in a parts motor. 1995 Johnson 88spl (LOTS (nearly all) of identical parts the the 90hp). No VRO. J88TSLEOC


Stator, coils, plugs, rectifier/regulator all replaced and probably have something like 30 hours on them.

Trim tilt works - replaced seals and motor years ago.

Foot unit works. Annual oil changes show a little fur on the plug magnet and the oil does show some very slight water intrusion, but, leak is apparently very slow. For about 10 years, I've just changed the oil and run her.

No idea if the block is usable. She definitely ate the rings in hole #2.

The entire thing has been disassembled within the last year to do the #1 piston/rings. So, all fasteners have been removed kinda' recently. Should be able to get her back apart. Should... unless you can't.

Control box, cables, and wiring harness intact and functional.



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17' Henry O Hornet w/ Yamaha 115
26' Palmer Scott project hull
14' Bentz-Craft w/ Yamaha 25


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17' Henry O Hornet w/ Yamaha 115
26' Palmer Scott project hull
14' Bentz-Craft w/ Yamaha 25
Last edited by PalmerScott
nice upgrade..
I repowered about 4 years ago with the first four stroke I'd ever run. I still try to start it sometimes while it's running. But apparently there's an override on the motor.


I am fragile.
Not like a flower.
But like a bomb.

22 life's a day
Haha I’m glad to see that.Enjoy the money you worked for,cause you ain’t gonna live to be 200.
Would my transom rebuild be interesting?

I think I took enough pics to tell the story.

If so, ill pull something together. Otherwise, why spend the time/effort.


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17' Henry O Hornet w/ Yamaha 115
26' Palmer Scott project hull
14' Bentz-Craft w/ Yamaha 25
What you waiting on....


You find things offensive.
I find things funny.
That's why I'm happier than you.

22 life's a day
You show yours...
I'll show mine.

Maybe Wolfie will come round.
He likes the fiberglass itch.


The ENTER-NET Fisherman