gearcase/skeg

[shawnfish]

does anyone know if the skeg off a 78 johnson 25hp fit on an 80 johnson 25hp? the gearcases have different part numbers but i just need the skeg from the 78 to fit the 80...

 

[racerone]

The 2 part lower units are machined when assembled and thus are matched parts.-----They are not a seperate part.-----------But you may be lucky and get away with fitting / sealing one from another motor.

 

[shawnfish]

i do know the 79-80 parts match, and the skeg on the 78 looks identical to the one on my 80. i just hate to buy the 78 lower and get it here to find out it will not fit. the lower i found is just the shell for 80.00......

 

[racerone]

The 78 skeg will bolt on to the 80., but it may not fit properly.

 

[shawnfish]

The 78 skeg will bolt on to the 80., but it may not fit properly.

can you explain what you mean by not fit properly? thank you....

 

[Boobie]

When the g/c is manufactured the skeg and the upper hsg are line bored at the factory for a matched set. Changing to a different skeg only may give you probs.

 

[racerone]

We had to explain this to owners some 40 years ago and I guess it is no different today.--------Most folks do not understand fine machinery.

 

[shawnfish]

i understand it perfectly well.....by line bored you mean they are machined to keep all the peices aligned properly correct?

 

[racerone]

Correct !

 

[Boobie]

Over the last 40 yrs plus my jaws used to get tired, now my fingers do. LOL