It seated the shaft 15mm deeper than the previous coupling on the back of the 1/2 aquadrive.
Im not familiar with rzeppa. Most marine
CV setups I looked at, like aquadrive, are not rated to bear thrust (just rotation, with small angular offset).
Some say the transmission and engine
mounts should not bear the thrust, and I understand their point, but in 3700+ hours it was the CV, not any other component that failed. (Although I replaced engine mounts at about 2500).
I understand that the overhang as measued by the distance from the cutlass or line cutter
to the prop should be approximately one prop diameter.
The SigmaDrive was shorter than the previous half-aquadrive, so I had a choice of either putting in a spacer (bobbin) at the back of the transmission, or having a new, longer shaft made, customized to my variprofile, and shipped to Antigua
, where the boat
was. I opted for a spacer.
Rod at King Propulsion
was helpful with getting the overhang right.
I can try to upload pics if they would help you.
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