PROP SHAFT DIAMETER

Apr 29, 2012
216
Beneteau 35s5 bristol ri
I have a recently purchased a 1990 Beneteau 35s5. Does anyone know what size shaft zink. The engine is a Volvo Penta.

Thanks!
 
Jun 21, 2004
2,780
Beneteau 343 Slidell, LA
Not absolutely sure; however, it’s likely 25mm. Call Beneteau or send them an email to verify.
 
Feb 26, 2011
1,440
Achilles SD-130 Alameda, CA
It's not "likely" a 25mm shaft. It absolutely is a 25mm shaft.
 

DougM

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Jul 24, 2005
2,242
Beneteau 323 Manistee, MI
I am not arguing that the shaft is 25mm, but other than the shaft material having been sourced from across the pond, is it possible that the US built Beneteaus could have one inch shaft material?
 
Feb 26, 2011
1,440
Achilles SD-130 Alameda, CA
I am not arguing that the shaft is 25mm, but other than the shaft material having been sourced from across the pond, is it possible that the US built Beneteaus could have one inch shaft material?
No. Not unless an owner changed out the original shaft and cutless etc. for SAE versions. But US-built Beneteaus come from the factory with metric running gear.
 
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Mar 20, 2016
595
Beneteau 351 WYC Whitby
Even my push pit and stanchions are 25mm which makes 1 inch fittings loose , I had to machine them so they closed tighter
I looked at going to a 1 inch shaft as 25mm is hard to come by, not so easy the outside of the tube would have to increase from 42mm (1.653) to 1.750 inches , then you would have to open the cutluss from 25 mm(.984) to inch which is only .016 of an inch . Then the taper on the shaft for prop is metric not SAE and theres another issue but not a biggy . Easier to pay thru the nose from Beneteau for a new shaft.
My issue was the drippless had worn grooves in shaft, was fixed by adding an R&D coupling and moving the wear back.
 
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Jun 21, 2004
2,780
Beneteau 343 Slidell, LA
No. Not unless an owner changed out the original shaft and cutless etc. for SAE versions. But US-built Beneteaus come from the factory with metric running gear.
Yes, my US built Ben 343 absolutely has a 25mm shaft.