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Old 26 March 2009, 04:00   #1
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long or short shaft for sib?

can you use long or short shafts on SIBs? as when looking for one on ebay most tend to have short shafts, but one i have come across has a long shaft, would that work ok?
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Old 26 March 2009, 05:51   #2
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Hi,
I dont profess to being an expert in the matter but I am pretty sure that you will need a short shaft engine for a sib.
Howy
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Old 26 March 2009, 08:19   #3
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Depends on which SIB I suppose but the vast majority of SIBs need a short shaft engine.

Keith Hart
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Old 26 March 2009, 08:56   #4
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i use a long shaft on my sib as i use the same engine for my hard fishing boat ,my sib would be a little faster with a short shaft ,but one advantage is that in a lumpy sea the prop stays in the water and i never loose power or have the prop airieate or cavitate even in large waves ,usually and different makes of engine differ is that you may get a little spray kicking up at the stern ,on my model tohatsu its there is a flat in the legbut i just cable tye a shaped block of wood to it .gives it that bit more streamlining .down side is its about 6 inches deeper in the water but if your beaching you should have the leg lifted up anyhow, kindest regards mart
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Old 26 March 2009, 11:47   #5
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As I recall, my Achilles 14 used a long shaft Honda 40.

Depends on the transom height.

jky
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Old 26 March 2009, 14:40   #6
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yeah the sib i have seen is a 3.2m with a 5hp merc long shaft.

how much difference in length is there between a short and long shaft?
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Old 26 March 2009, 14:52   #7
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Quote:
Originally Posted by ickleric View Post
yeah the sib i have seen is a 3.2m with a 5hp merc long shaft.

how much difference in length is there between a short and long shaft?
with my tohatsu about 5 inches difference between the short and long
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