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Old 24-05-2009, 10:03   #16
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A right hand (RH) prop spins clockwise when looking forward, or viewed from astern, and a left hand (LH) prop spins counter-clockwise looking forward from the stern. RH propís are nearly universal in single screw boats.

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Old 26-05-2009, 05:02   #17
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It is normal for reduction transmissions with a 'drop center' configuration to reverse the rotation of the engines rotation. The HBW series of transmissions would do this if when the transmission selector is in the 'Pos A' position. Note the selector shaft rotates counter-clockwise to effect this (the lever if pointing straight up in neutral would be pulled aft for forward and pushed towards the engine for reverse.

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Old 26-05-2009, 06:50   #18
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Thanks for that Robert and all,

Seems we are using our gearbox in position 'B', not sure why anyone in their right mind would do it that way but I need to look at the best way to put things right.

I am not sure if the gearbox which is on is a HBW10m or a HBW100, I am told that the 10 compares to the ZF 12m which I have a new one and the HBW 100 compares to a ZF 10M, there is no plate on the gearbox which has now been removed are there any suggestions on how you can tell which one it is?

The gearbox which is on does not have a oil cooler which I may change or would it be better to think about changing the prop and installing the new ZF 12M gearbox. I also need to get a new damper plate as the old one was smashed getting the old box out.

Any thoughts!

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