1959? johnson superhorse 50

[57whitehouse]

Just bought a 1959 fleetform commodore with, what the guy said he thought was a 1959 johnson 50hp.

SR# is 1954803. I was thinking the 1954 part made it a 1954 motor.

Am I ignorant? The model is v4s 11

Also, I tried to upload a pic of an oil leak out of the lower unit, but the pic was supersized and to big for iboats to load.

The leak is a light yellowish fluid that is comming out of a little hole in front of the long skinny plate just next to what i think is the water intake.

I took the boat out for a quick spin to see if it would go today. It took a little choking to get it going. With wot it seemed low on power and it keept kicking me(seemed like it would occasionaly miss, causing a kick). After I got home, the oil comming out of the lower unit seemed greyish and instead of comming out of the pinnhole, seemed to be comming out of the long skinney plate.

If I figure out how to shrink the pic, I'll paste it here.


Advise?

 

[DJ]

Re: 1959? johnson superhorse 50

Moving to Johnson/Evinrude Questions.

 

[F_R]

Re: 1959? johnson superhorse 50

V4S-11 is the model number and says it is a 1959. The serial number says that it is the 1,954,803rd Johnson built since they started counting back in the 1920's

The "kick", would that be a feeling like you are running over a stump every so far? That is a worn out clutch dog and forward gear in the lower unit.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

Good morning Frank. I guess the "kick" could be described as hitting a stump every so far. How can I be sure and what happens if I run it with that problem?

 

[Chris1956]

Re: 1959? johnson superhorse 50

OK, you have a Fat-Fifty. That motor has adjustable high speed carb mixture. You may need to do that at some future time. As for now, you seem to need lower unit work. First check the shift adjustment. On the port side of the motor there is a bellcrank connected to the shift lever. Remove the shift cable at the quick disconnect. Now (motor off) turn the prop by hand as you push the lever into forward. It should go into gear, exactly where the scribed lines on the bell crank match the end of the springy lever that holds it in neutral. The same adjustment is for neutral. You can adjust it at the bell crank. However, I will guess that the shift dog is bad, and this adjustment will fail.

If the dog still slips after adjustment, you need to open up the gearcase by removing the 8-10 gearcase screws and the phillips head pivot bolt at the base of the bullet. Inspec the shift dog for rounded edges on the prongs that contact the gears. The gears and dog are reversable, so pick the best sides and reassemble.

As for your gear oil leak. it sounds like you need to drop the lower unit and replace the seals and gaskets of the waterpump. The shift rod disconnect is under two covers on the side of the midsection. Each cover has a slotted stainless steel screw. Remove the bolt completely from the shift rod connector, or the lU will not drop.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

I'm not sure I'm supposed to give a direct link to photo bucket, but I'm having trouble posting a pic here so the link is a pic of my motor lower unit oil leak. Scroll down when you get to the site.

http://s238.photobucket.com/albums/ff84/57whitehouse/?mediafilter=images

 

[F_R]

Re: 1959? johnson superhorse 50

I'm not sure where that drain hole leads to. There might be a shift rod seal leaking. You do realize that you have the world's champion sloppy running motor, don't you? They dump more unburned fuel and gunk into the water than they burn.

 

[Chris1956]

Re: 1959? johnson superhorse 50

The oil is leaking from the drain next to the waterpump. The oil could originate in the waterpump base gasket, the waterpump driveshaft seal or the shift rod seal.

F-R: Those motors didn't dump more fuel than they burned, however they dld dump 1/6 of the total fuel used! I made a recirculation system for my Fatty, which recycled the fuel. You could save it and mix it with fresh fuel. it was likely a bit better for the environment.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

didn't know that.

What all seals do I need to order?

I think I have a diagram of a lower unit for a 57 gale buccaneer. Will that work for the johnson?

 

[wbeaton]

Re: 1959? johnson superhorse 50

PM me your email, 57whitehouse. I'll send you the parts manual for that motor in pdf format.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

when i pull the lower part to replace the impellor and flip (or replace) the clutch dog, where is the connection to release the shifter rod?

 

[Chris1956]

Re: 1959? johnson superhorse 50

To rekease the shift rod you need to remove the cover on the midsection (Starboard side???). It is a small cover about 2.5" square, with a screw on two corners. Under that plate is another cover over the inner exhaust housing. Two more screws and you will see the shift rod coupler. You must remove the hex bolt completely or the rod will not pull out of the coupler.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

I did remove a diamond shaped cover and an oblong cover under that. I saw what I thought to be a shift rod coupler. I didn't recognize it from my old '57 gale 25hp because I didn't see screws like the gale. You say there are hex screws instead? I'll take another look.

Is there a gasket to replace between the sections? On the Gale there wasn't one.

OK, I looked closer at the parts list and see a speggatti seal. Can you use silicon instead or in addition to?

 

[Chris1956]

Re: 1959? johnson superhorse 50

Use a little sealer between the lower and upper. no gasket is necessary

 

[57whitehouse]

Re: 1959? johnson superhorse 50

Finaly I had time to pull the lower unit off. I took the prop off and removed the gear assembly, and flipped the clutchdog. I could see the wear on one side and the other side is in great shape.

The oil came out cream color and then changed gradually to dark brown.

I am now going to order a shift rod seal ($30, what is that about?). Jeff from laings said he would be money the water leak is comming from there. Is this seal accessable from the top (outside) or bottom (inside the gear case)?

 

[F_R]

Re: 1959? johnson superhorse 50

Thirty bucks for an o-ring??? Holy cow! Wish I knew what size it is.

Edit: There has to be some mistake there. Part number 305242 is 80 cents from a Johnson dealer. Sierra/iboats part number is 18-7118, probably around 50 cents??

 

[57whitehouse]

Re: 1959? johnson superhorse 50

Thirty bucks for an o-ring??? Holy cow! Wish I knew what size it is.

Me too!!! Do you know how to remove/replace it?

 

[57whitehouse]

Re: 1959? johnson superhorse 50

BTW Hi Frank. Good to talk to you again.

 

[57whitehouse]

Re: 1959? johnson superhorse 50

Here is a pic of the leak. Does it look like a shift rod seal?

 

[F_R]

Re: 1959? johnson superhorse 50

Well, you said the gearcase oil was cream colored, not black. Looks moe like fuel/oil that has gone through the engine and out the exhaust, picking up black carbon particles, then coming out the drain holes. Remember, that 50 dumps huge amounts of fuel out the exhaust. Can't help that part.

But that is not to say it cannot also have a shift rod seal leaking. I'm not 100% sure, but it probably can be replaced like the 75hp. Merely remove the shift rod and hook the seal out like you would a fuel connector o-ring.