Sportmaster lower unit

[R.I.P.]

My fat shaft doesn't have a hole for cotter pin ? Is that normal ?

[Tom Foley]

Yes . The Fat Shaft uses a 3 washer system . First big spacer goes on after the prop , then the conical bellville washer , then the final flat washer and fresh Nylock propnut . Torque to spec unless you have years of mechanical experience tightening things or you could over or under tighten the nut .

[R.I.P.]

They all look the same? One is fat two are the same.

[tux974]

They all look the same? One is fat two are the same.

No, they are not, look closely. One is a little thinner which goes in the middle.
If you have 2 the same thickness someone swapped them.

[DangerNewb]

No, they are not, look closely. One is a little thinner which goes in the middle.
If you have 2 the same thickness someone swapped them.

And it has a slight curve. Lay the two thin one's together from each side and you will be able to rock one of them back and forth a lil bit That's the one that gets sandwiched.

[robert jordan]

And it has a slight curve. Lay the two thin one's together from each side and you will be able to rock one of them back and forth a lil bit That's the one that gets sandwiched.

The middle one that is conicaled , does it matter which way it goes on the shaft?

[Dave Strong]

The middle one that is conicaled , does it matter which way it goes on the shaft?

High side up.

Dave

[team supra]

What is the torque specs

[Dave Strong]

Min 55lb/ft.

Dave