View Full Version : Engine rotation?
edgewater1
07-13-2011, 05:54 PM
I am not with my boat right now but in the process of buyimg a new engine, what is the propeller rotation of my 1991 supra sunsport. 351 windsor. Pcm powerslot 1.23x1 transmission?
I want to make sure as i search for a different 351
Edge
crystal waters
07-13-2011, 06:08 PM
1:23 to 1 pcm transmission is a right hand rotation of the prop
bdumas35
07-13-2011, 06:12 PM
Hey Edge,
Maybe this can help. Your firing order should be on the engine tag.
http://www.planetnautique.com/vb3/showthread.php?7037-pcm-gt-40-firing-order
beast 496
07-13-2011, 06:14 PM
Ok, you have a PCM tansmission with a RH rotation output, but it has a LH rotation input. Your engine is a LH rotation viewed from the flywheel.
Al
edgewater1
07-13-2011, 07:01 PM
So if its right hand rotation of the prop it would be left hand or a standard rotation engine, on a 1.23x1 pcm
crystal waters
07-15-2011, 11:43 AM
my understanding is that the rotation of the 1:23 to 1 is the reverse of the engine rotation.
If Engine rotation is left then tranny is right
If Engine rotation is right then tranny is left.
Any doubts check with ski dim - can alway answer your questions.
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