'84 Ski Nautique Shaft/Prop Combos
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=20965
Printed Date: May-23-2024 at 4:32pm
Topic: '84 Ski Nautique Shaft/Prop Combos
Posted By: jaynicie
Subject: '84 Ski Nautique Shaft/Prop Combos
Date Posted: March-18-2011 at 2:56am
'84 Nautique with 351 cu Ford, 1" shaft and 13 x 13 RH prop.
The prop and shaft sustained damage and I suspect a must replace the shaft. The prop can hopefully be reconditioned. If I do replace the shaft, is a 1 1/4" shaft an option?
What are the prop size options for the 1" and 1 1/4 shafts?
Where can I obtain a repair manual or at least instructions to replace the shaft?
Thanks is advance for your help.
JBird
------------- JBird
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Replies:
Posted By: 8122pbrainard
Date Posted: March-18-2011 at 8:45am
Jay,
I've never seen a repair manual for prop shaft replacement, strut/shaft/engine alignment. However, CCfan has lots of info on all in previous threads. If you can't find something, ask.
Stick with the 1" original shaft. Plenty of props for it and it will handle the load. Was there a reason you were thinking of going heavier?
------------- /diaries/details.asp?ID=1622" rel="nofollow -
54 Atom
/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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Posted By: OverMyHead
Date Posted: March-18-2011 at 9:26am
http://www.correctcraftfan.com/forum/forum_posts.asp?TID=6037&KW=alignment&PID=58701&title=span-classhighlightalignment-span#58701 - Erics allignment thread
This should cover the allignment.
As far as the 1 1/4 shaft (Taking my screen name into consideration, I am no expert) I would rather have the drive shaft be the weak link than the transmission. I have read about prop strikes wrecking transmissions with the one inch shafts. Beefing it up would seem to me to just further jepordize the tranny which is far more expensive to repair/replace.
------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique
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Posted By: eric lavine
Date Posted: March-18-2011 at 9:57am
I hear a 2" shaft is the way to go...come on were in a recession
------------- "the things you own will start to own you"
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Posted By: jaynicie
Date Posted: March-18-2011 at 11:16am
Thanks Peter,
I will continue searching the wealth of info on CCfan for the info. I found the engine repair manual but nothing on the drive shaft.
The reason I asked about the shaft size was that I read a thread that stated the larger shaft diameter had more prop options.
Jay
------------- JBird
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Posted By: TRBenj
Date Posted: March-18-2011 at 11:21am
jaynicie wrote:
The reason I asked about the shaft size was that I read a thread that stated the larger shaft diameter had more prop options. |
I do not believe that to be the case for a RH 1:1 set up.
If you were to swap to a larger shaft size, it would require you to replace the strut, shaft packing and possibly shaft log as well. They strut may have to be made custom. Either way, youd be looking at a very expensive upgrade.
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Posted By: OverMyHead
Date Posted: March-18-2011 at 11:25am
eric lavine wrote:
I hear a 2" shaft is the way to go...come on were in a recession |
Sorry Eric, I didnt mean to mess with a mans livelyhood.
------------- For thousands of years men have felt the irresistible urge to go to sea, and many of them died. Things got better after they invented boats. 1987 Ski Nautique
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Posted By: jaynicie
Date Posted: March-18-2011 at 11:33am
Thanks Eric,
That makes sense to stick to the 1" shaft as a buffer to any potential tranny damage. Your alignment thread is awesome!
Jay
------------- JBird
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Posted By: 8122pbrainard
Date Posted: March-18-2011 at 3:18pm
jaynicie wrote:
Thanks Peter,
I found the engine repair manual but nothing on the drive shaft.
Jay |
Jay,
You will not find it in the manuals. By doing a forum search, you will find lots of threads on the R&R of the prop shaft.
If you do need a new shaft, I suggest the ARE system that uses a taper on both ends.
------------- /diaries/details.asp?ID=1622" rel="nofollow -
54 Atom
/diaries/details.asp?ID=2179" rel="nofollow - 77 Tique
64 X55 Dunphy
Keep it original, Pete <
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