1964 Johnson 40 hp outboard dirty ignition plate assembly

[johnlazelle]

Hi all,

I have ordered new coils, points, condenser and spark plug wires for my old Johnson and so i took the flywheel off to get to the parts and it is really black and sooty in their! Same type of material you would find on a fouled spark plug?

What would be the cause of this? I did have a float problem in my carb that was causing fuel to run out the carb.

Before i replace all the parts, just wondering if there is something else i should look at?

Thanks,
John

 

[racerone]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

You need to replace the upper crankshaft seal !!!

 

[johnlazelle]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

Yuck, is that a hard job?

 

[racerone]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

No " yuck " at all.-------Most regognized repair shops would have a factory tool that would remove the seal in a matter of minutes for you.---Time to call a few and ask if they still have the tool and someone that knows how to do this simple job.

 

[boobie]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

I've pulled that seal out with the proper picks and installed the new seal with a piece of the correct size pipe.

 

[johnlazelle]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

Thank you!

 

[johnlazelle]

Re: 1964 Johnson 40 hp outboard dirty ignition plate assembly

How about removing and installing a new roller bearing? Does that also require special tools?

 

[johnlazelle]

Replaced the seal, new points, condensors, coils, spark plugs and wires and here is the result!

https://www.youtube.com/watch?v=FyiHgUETl0I

 

[racerone]

For those who can work on these motors themselves they are excellent motors.---If you have to find a dealer to fix even the minor things then these motors are an expensive headache.