Re: 58 or 59 johnson 35hp super seahorse
Boy, you are gonna learn a lot with that old motor.
I bought three of the old Two-hose 35 Hp johnsons off the beach in western AK.
I spent a lot of time with those old buggers.
First thing I'd do if I were to start all that over again is get a veriable speed 1/2" drill and the adaptoer to sockets. Or if you have a good air compressor, use it.
That's to turn that motor over while your doing compression checks and checking the coil out puts. Dont try to start it with that motor though.
First thing to check is the upper main bearing.
That's a constant failure point and one of the symptoms is no fire to the lower plug. Any firing is real intermittent at certain RPM's when that bearing is worn.
If you have a bad upper main bearing, you also may have a bad Bearing seal.
That seal bad will lose your crankcase compression for you and one of the symptoms there is the Fuel pump dont work so good.
You have two sets of points up under the flywheel.
The lower cylinder almost always quits before the top.
The motor runs at a slow idle on the lower cylinder. Most times when an engine wont Idle down, its something wrong with the lower cylinder not firing.
Clean the Carb, make sure your hoses and pump are working......then if you must pull that flywheel to file the points or check for odd problems, Be carefull to check for the Key at the flywheel/crankshaft.
A backfire can shear that key in one hit.
Check for wear at the fiber/cam junction. Make sure both ponts open the same. If not you may have a bad cam lobe or worn fiber on the points.
Experience: Dont mess with those Reeds. They are a life time device if no humanoid ever touches them.
That compression is OK. Any thing above 60Lbs is good. I dont rever remember one with 90Lbs. All my motors worked just fine as long as the compression was equal or close to it.
When you pull start that motor. Dont grip that T-bar so tight. If it backfires on you, it will yank that T-bar out of your hand so hard and fast it will pull the tendons loose at your elbow and biceps.
Experience talking here!
That motor was engineered to start with a slow pull. Bump, bump, bump...if its gonna start, you dont have to pull it hard. Just steady. That's an easy starting motor.
One of my motors had a bad clutch dog in the lower unit. You wont find that till you have it out on the boat though.
Boy, you are gonna learn a lot with that old motor.
I bought three of the old Two-hose 35 Hp johnsons off the beach in western AK.
I spent a lot of time with those old buggers.
First thing I'd do if I were to start all that over again is get a veriable speed 1/2" drill and the adaptoer to sockets. Or if you have a good air compressor, use it.
That's to turn that motor over while your doing compression checks and checking the coil out puts. Dont try to start it with that motor though.
First thing to check is the upper main bearing.
That's a constant failure point and one of the symptoms is no fire to the lower plug. Any firing is real intermittent at certain RPM's when that bearing is worn.
If you have a bad upper main bearing, you also may have a bad Bearing seal.
That seal bad will lose your crankcase compression for you and one of the symptoms there is the Fuel pump dont work so good.
You have two sets of points up under the flywheel.
The lower cylinder almost always quits before the top.
The motor runs at a slow idle on the lower cylinder. Most times when an engine wont Idle down, its something wrong with the lower cylinder not firing.
Clean the Carb, make sure your hoses and pump are working......then if you must pull that flywheel to file the points or check for odd problems, Be carefull to check for the Key at the flywheel/crankshaft.
A backfire can shear that key in one hit.
Check for wear at the fiber/cam junction. Make sure both ponts open the same. If not you may have a bad cam lobe or worn fiber on the points.
Experience: Dont mess with those Reeds. They are a life time device if no humanoid ever touches them.
That compression is OK. Any thing above 60Lbs is good. I dont rever remember one with 90Lbs. All my motors worked just fine as long as the compression was equal or close to it.
When you pull start that motor. Dont grip that T-bar so tight. If it backfires on you, it will yank that T-bar out of your hand so hard and fast it will pull the tendons loose at your elbow and biceps.
Experience talking here!That motor was engineered to start with a slow pull. Bump, bump, bump...if its gonna start, you dont have to pull it hard. Just steady.
That's an easy starting motor.One of my motors had a bad clutch dog in the lower unit. You wont find that till you have it out on the boat though.
