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TOPIC: short hub? Long hub?

short hub? Long hub? 21 Jun 2009 03:52 #1

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How can you tell the difference? My prop shaft does NOT have a threaded hole to attach the hub, so I am assuming I need the type of hub that has the locking tabs (3 pieces). Is there a measurement on the prop hub that will tell me if I have the short hub or long hub...and again, what are the telltale signs?

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Dave Slater
Fairbanks, Alaska
'78 Fiberform 23' Baja hardtop
(almost a Bayliner)

short hub? Long hub? 21 Jun 2009 12:52 #2

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Take a look at this thread as of a day or so ago.

If your question is not answered, post back.

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Rick E. Portland, Oregon
2850 Bounty Sedan Flybridge model
Twin 270 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set

short hub? Long hub? 22 Jun 2009 06:46 #3

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Rick

I guess my problem is I that I don't understand what keeps the prop cone from coming off It, of course threads onto the shaft but even after tightening it as much as I dared, it was nearly completely unscrewed and was ready to come off after only a short trip. Scared me.

My prop shaft is not drilled to accept a bolt. I found this out after discovering there was no bolt holding the prop nut on, so I ordered one...and when I went to install it..no threaded hole in shaft.

So what holds the prop on...or more to the point, what keeps the prop nut (cone) from unscrewing? Getting the 3 piece cone is no problem but everything I look at, including manuals, shows the bolt. Your advise...knowledge...would be appreciated.

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Dave Slater
Fairbanks, Alaska
'78 Fiberform 23' Baja hardtop
(almost a Bayliner)

short hub? Long hub? 22 Jun 2009 14:28 #4

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Dave, with your shaft, you will need the spinner (cone nut) that is used with the SS locking tab washer. It can be either the single or two piece spinner so long as the notches are there.
Once in position and tight, one or two tabs will be bent into one or two of the notches in the spinner....... favoring the tab preventing unscrewing of the spinner.
IOW's, bend the clockwise most portion of the tab into the counterclockwise most area of the notch so it has the best bite!

If you can't find one, I have them here. Shoot me an email if you would like one.

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Rick E. Portland, Oregon
2850 Bounty Sedan Flybridge model
Twin 270 HP 5.7's w/ Closed Cooling
Volvo Penta DuoProp Drives
Kohler 4 CZ Gen Set

short hub? Long hub? 22 Jun 2009 17:24 #5

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Rick, the boat is currently sitting at our cabin about 500 miles from here. I wlll be going back down in a couple of weeks to bring it home for some more minor repairs, but in looking at it before I left, it appeared that the prop did not leave any splines exposed on the shaft and that in fact, the prop more than covered the splines. Does this mean I have the wrong line cutter/spacer or the wrong prop? I can measure the hub depth on the prop if that helps. I brought it home with me. Regardless, I'm going to need the notched hub and the SS locking tab washer.

If anyone is interested, I will have 3 un-notched cone nuts for sale cheap.

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Dave Slater
Fairbanks, Alaska
'78 Fiberform 23' Baja hardtop
(almost a Bayliner)

short hub? Long hub? 23 Jun 2009 05:28 #6

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Rick, which would you recommend? The 1 piece cone with SS washer or the 2-piece cone with SS washer. And how much? I need to get one ordered from you.

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Dave Slater
Fairbanks, Alaska
'78 Fiberform 23' Baja hardtop
(almost a Bayliner)
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