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Prop Strut #13042
02/13/12 11:57 AM
02/13/12 11:57 AM
Joined: Apr 2007
Posts: 114
Richmod, VA
Phil Offline OP
Senior Member
Phil  Offline OP
Senior Member
Joined: Apr 2007
Posts: 114
Richmod, VA
I need a Prop Strut for my 1979 J30, Hull #25. I have been told that there are several different struts that were used on the J30's over the years, so I need to be sure that I find one that will fit my boat.

Phil

Re: Prop Strut [Re: Phil] #13043
02/13/12 12:28 PM
02/13/12 12:28 PM
Joined: May 2007
Posts: 1,234
Newport and Naples
Cap'n Vic Offline
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Cap'n Vic  Offline
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Joined: May 2007
Posts: 1,234
Newport and Naples
take picture and post. also measure the WxL of the base rectangle.
that may give us a better idea of just how different they could possibly be.

Re: Prop Strut [Re: Phil] #13047
02/13/12 03:37 PM
02/13/12 03:37 PM
Joined: Apr 2007
Posts: 114
Richmod, VA
Phil Offline OP
Senior Member
Phil  Offline OP
Senior Member
Joined: Apr 2007
Posts: 114
Richmod, VA
Just reporting what the repair yard said. I would guess that the prop shaft diameter will make a difference too (3/4" v. 1").

Once the old shaft is on the boat I'll try to get a photo posted.

Re: Prop Strut [Re: Phil] #13048
02/13/12 05:54 PM
02/13/12 05:54 PM
Joined: May 2007
Posts: 1,234
Newport and Naples
Cap'n Vic Offline
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Cap'n Vic  Offline
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Joined: May 2007
Posts: 1,234
Newport and Naples
OK that may be your repair guys winging it.
the 1" shaft I'm thinking was optional starting in ~400 series and standard in the hull 500 series.


Re: Prop Strut [Re: Cap'n Vic] #13049
02/13/12 06:12 PM
02/13/12 06:12 PM
Joined: May 2007
Posts: 2,668
Portsmouth, RI
Rhapsody #348 Offline
Past J/30 Class President
Rhapsody #348  Offline
Past J/30 Class President
Joined: May 2007
Posts: 2,668
Portsmouth, RI
Hull 348 came with a 1" diameter shaft

Re: Prop Strut [Re: Phil] #13083
02/22/12 09:50 PM
02/22/12 09:50 PM
Joined: Oct 2009
Posts: 381
Squamish, British Columbia
NaturalHigh Offline
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NaturalHigh  Offline
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Joined: Oct 2009
Posts: 381
Squamish, British Columbia
Can you let me know what the bolts look like when they come out and if you can tell how they are mounted in the hull? Mine is loose and I am debating drilling all the way through the hull and mounting a metal plate with nuts on the inside.

Re: Prop Strut [Re: Phil] #13085
02/22/12 11:00 PM
02/22/12 11:00 PM
Joined: May 2007
Posts: 1,234
Newport and Naples
Cap'n Vic Offline
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Cap'n Vic  Offline
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Joined: May 2007
Posts: 1,234
Newport and Naples
if you decide to reinforce using a backing plate ... I suggest G10 as an alternative to metal.
Doing a quick grind and epoxying the g10 inside the hull before redrilling. This will give a pretty solid base for the strut.

Re: Prop Strut [Re: Cap'n Vic] #13086
02/22/12 11:15 PM
02/22/12 11:15 PM
Joined: May 2007
Posts: 1,234
Newport and Naples
Cap'n Vic Offline
Senior Member
Cap'n Vic  Offline
Senior Member
Joined: May 2007
Posts: 1,234
Newport and Naples
I'm thinking that in construction they attached the strut bolt nuts on the inside ... and then ran a layer of thickened resin over the area to "seal" it? Let us know if this guess is close when you get there.


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