KA 37 powerhead

[Boonie]

Well put my KA 37 power head back together today with new rings. Gave it a spin  with a drill and both cylinders are showing 80 lbs compression.  Acceptable? Still trying to figure out which way the oil slinger is supposed to face?

[David Bartlett]

80 PSI should be enough for it to run well. Not sure about the slinger.

David Bartlett
Pine Tree Boating Club Chapter

"I don't fully understand everything I know!"

[Boonie]

Can anyone explain how to remove the prop shaft from a KA 37. The drive shaft and prop shaft just dont pull out?

[Buccaneer]

Boonie wrote:

Can anyone explain how to remove the prop shaft from a KA 37. The drive shaft and prop shaft just dont pull out?

I believe the ball bearing is pressed onto the prop shaft,
and is a light press into the gear case housing.
Normally if you heat up the housing and wrap on the
nose cone with a block of wood, the prop shaft and bearing
will drop out.

Prepare to be boarded!

[Boonie]

Thanks Buccaneer. I will try that. Should the drive shaft lift out. Or should the prop shaft come out first. Neither one wants to move?

[Buccaneer]

It looks like the pinion gear is pinned onto the driveshaft,
and I’m thinking the driveshaft would have to come out first,
after you remove the pin.

Prepare to be boarded!

[Boonie]

Hey Buccaneer i think you mean the prop shaft would have to come out first?

[Boonie]

So on the KA 37 without a water pump/impeller how does the cooling system work?

[Boonie]

Found my answers on an older post.

[Tubs]

 If you haven discovered how to get the gear off the drive shaft, there is a spring ring that covers this pin. It is a real PITA to get off.    

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

[Author]

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