JW props
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- This topic has 5 replies, 5 voices, and was last updated 5 years ago by fleetwin.
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March 8, 2019 at 1:18 pm #170601
Working on a couple of JW’s, making two out of three.
One engine had a 3 blade prop # 203120 (6 1/2″ x 5 3/4″)
Marine engine shows the number has been replaced by # 203919 and illustrates a two bladed unit.Is the 3 bladed prop designed for slower speed, more push?
March 8, 2019 at 2:43 pm #170604That would appear to be the case by conventional wisdom. But they only used the 3-blade for a couple of years then replaced it with 203919 2-blade 6 1/8 x 6 1/4 because it just works better.
March 9, 2019 at 3:10 am #170639They found the early prop allowed it to run too fast os an easy to push boat or canoe. After replacing some blown up motors they decided most people didn’t have a tachometer changed to the two bladed higher pitch prop for later models.
Garry in Tampa
March 9, 2019 at 7:28 pm #170730I run the 3 blade lower pitch prop on mine. I use it for a back up motor on my Big Jon. The lower pitch will allow it to rev up a bit more, which is good when using the motor with a heavy load.
March 10, 2019 at 6:34 pm #170870Thanks Gents, great info.
Sorry for the delayed response, been in “computer limbo” for a couple of days.
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