short shaft or longshaft how do i measure my 1979 johnson 35 h p

[limy]

I have a 1979 johnson 35hp with a frozen lower unit. I have removed it .now trying to find a replacement. How do i measure if it's a short or long shaft?

 

[flyingscott]

You measure from where the motor rests on the transom to the cavitation plate.

 

[hardwater fisherman]

You can see the difference quite easily.

 

[oldboat1]

Just for grins, you might measure the boat transom to see if the motor you removed had the correct shaft length for the hull.

 

[jerryjerry05]

Mod EDIT: Copyrighted

 

[mike_i]

The Yamaha motor model number tells weather the shaft is long or short, maybe Johnson also does the same.

 

[oldboat1]

#5 is excellent info.

 

[racerone]

The model # indicates long shaft with an ---L--- in it.----Or a standard 15" would have a 5" spacer to convert to long shaft.----With a picture of your actual motor it is identified in mere seconds.

 

[hardwater fisherman]

The model # indicates long shaft with an ---L--- in it.----Or a standard 15" would have a 5" spacer to convert to long shaft.----With a picture of your actual motor it is identified in mere seconds.

??????? Would a 1979 model have a 5" spacer for a long shaft????? Just asking because the parts diagram shows the length is in the exhaust housing... Like in the photos I posted..

 

[racerone]

The spacer would only be used if it was a regular 15" shaft converted to 20".----As clearly indicated in post #8 I believe !!!!

 

[hardwater fisherman]

The spacer would only be used if it was a regular 15" shaft converted to 20".----As clearly indicated in post #8 I believe !!!

?? Can you point out the "spacer" to me because I do not see it? Post number 3 clearly shows the short and long shaft motors without any spacer. The different shaft length is in the exhaust housing....

 

[hardwater fisherman]

The spacer would only be used if it was a regular 15" shaft converted to 20".----As clearly indicated in post #8 I believe !!!!

I guess things that are simple to some can be confusing to others..

 

[racerone]

I clearly stated that a 15" short shaft can be changed to a long shaft with a kit.----The kit would include a 5 " spacer !!

 

[hardwater fisherman]

The model # indicates long shaft with an ---L--- in it.----Or a standard 15" would have a 5" spacer to convert to long shaft.----With a picture of your actual motor it is identified in mere seconds.

The word "kit" was never used until post 13.. But as always you win . And I am wrong in saying that the 1979 35hp left the factory without a 5" spacer on the long shaft motor.

 

[hardwater fisherman]

And honestly I do not care other then the fact that I said the difference between the 2 shaft lengths is obvious. And you still dismissed what I said as not important.

 

[tphoyt]

I’m sorry but I can’t believe this conversation is still going on. I don’t see that Limy is even in on this topic anymore. Limy is probably out fishing and you guys are still arguing.