1984 150 hp evinrude long or short shaft?

[fishbait2]

I have a 1984 evinrude mounted on th back of a 1984 19ft starcraft islander.
How do I find out if it is a long shaft or a short shaft? The motor has very low compression and I am replacing it but I need to know the shaft size.

 

[Joe Reeves]

Re: 1984 150 hp evinrude long or short shaft?

Measure from the underside of the transom bracket (bkt that bolts to the boat) down to the cavitation plate just above the propeller.

Close to 20" = Long shaft

Close to 25" = Extra long shaft

A short shaft engine would be close to 15"..... no such thing on that engine.

 

[emdsapmgr]

Re: 1984 150 hp evinrude long or short shaft?

The model number will have an "L" in it for the long shaft-20". The 25" models usually have an "X" (for extra long) in the model code. Look for the aluminum serial/model plate riveted on the transom bracket.

 

[raylaird]

Re: 1984 150 hp evinrude long or short shaft?

my 1986 150 has a L in the model # does mean I have a 20" shaft? I measured the shaft from the water pump (where it mates up to the case) and I get 22".

ray

 

[trendsetter240]

Re: 1984 150 hp evinrude long or short shaft?

If you are buying a replacement motor measure your boat not the motor! Maybe your old motor is the wrong length?

Measure the transom at the center line from the top where the engine bracket sits to the keel. This is the length of engine that you need.

 

[raylaird]

Re: 1984 150 hp evinrude long or short shaft?

not buying new motor new lower unit.

 

[trendsetter240]

Re: 1984 150 hp evinrude long or short shaft?

not buying new motor new lower unit.

I'm confused... the lower unit will not help with your low compression problem?

 

[raylaird]

Re: 1984 150 hp evinrude long or short shaft?

I was not the orginal person to post this thread. However, like the poster I need to know how to determine the shaft lenght of my motor. Thanks for any help you can lend to this topic.

ray

 

[ezmobee]

Re: 1984 150 hp evinrude long or short shaft?

http://www.smalloutboards.com/shaft.htm