Iam busy with another one of my conversions this is a 1974 70HP JOHNSON ,this motor is gonna be fitted with a radiator & the impeller is still gonna be in place with the water still pumping as the motor turns , so its gonna have a backup cooling system should the radiator fail out at sea , the con rod bottom half's have also been modified to get more lubrication onto the bearings , this motor will have 2 solenoids fitted ,1 on the harness , like what ive done to my 60 hp & the other 1 on top of the exhaust box where they are fitted now , they will both be wired up to power supply , should 1 fail ,then just a click over from a switch that will be fitted , & the other solenoid will be in operation . Have a good look how i have Epoxy coated the inside of this motor , using my special heat resistant Epoxy i have formulated , Also used my special desalting formula to clean the salt & corrosion in the water ways & block , witch works 10x better & 10x cheaper than anything you can buy on the shelf from any boating shop in the world , & 10x more in volume per liter ,at this stage , Sorry iam not a mechanic , but just love working on old outboard motors & rebuilding them as a hobby ,MY ADVICE TO ANYONE , wanting to buy a old motor is strip the exhaust box & have a look at the water passages for corrosion , you will be surprised what salt can do to your motor , i found that over the years water gets in to the pistons through the exhaust ports , i have uploaded photos to show you where the water gets in , have a look at the faces where the gasket goes especially around the exhaust ports , you will see the GREY areas around the gasket faces caused by corrosion , & then u will see how i fixed this by getting grinding paste {COURSE} & a thick glass top , not your mothers dining room table . like i used , PHOTOS WILL FOLLOW ONCE THIS CONVERSION HAS BEEN DONE , cheers
