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Old 21 August 2010, 13:54   #11
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does 20" not = long?
When something is wrong in these situations, I usually just assume that it's me , maybe I've measured it wrong.

Maybe he's winding me up...
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Old 21 August 2010, 15:47   #12
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Originally Posted by Polwart View Post
does 20" not = long?
that's what I thought but I didn't like to argue ... I thought you measured them from the top of the transom saddle to the cav plate and 15"=short, 20"=long and 25"=XL, but I'm not sure... and I'm too busy looking at pictures of my boat to Google it
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Old 21 August 2010, 16:20   #13
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To complicate matters, I've only measured it again - this time squared up and hanging vertically from a bench mount and no guess work...

From the top of the inside of the transom bracket to the top of the Cav plate is 23.5 inches. Any takers?
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Old 21 August 2010, 17:21   #14
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Extra-LongIsh

XLI for short

A quick Google turns up this diagram in a few places, which is what I always thought was the right way to measure it:

http://www.boatmotors.com/ref/shaft_length.html
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Old 21 August 2010, 17:27   #15
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Extra-LongIsh

XLI for short
G'way, you're no help!

Nos, come back, we need you!


Aargh! I'm screwed.
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Old 21 August 2010, 18:04   #16
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Quote:
Originally Posted by Polwart View Post
does 20" not = long?
Damn , yes you're right. It does. It's a long shaft. I was thinking it's not an XL.... d'oh.
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Old 22 August 2010, 03:51   #17
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ebay it, you'll only spend a huge amount of time getting it going and put it back in the shed, why did you put it in there in the first place?
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Old 22 August 2010, 05:19   #18
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ebay it, you'll only spend a huge amount of time getting it going and put it back in the shed, why did you put it in there in the first place?
Maybe not a bad idea, patently its not gonna be pushing a SIB (with a long shaft). I'd hate to waste time on an educational project like that when I could be putting it to good use loitering on RIBnet

Note to self. Trust the tape measure and not other's comments when calculating shaft length

If it was a runner, I'd feel happier about selling it, so I may still have a go at it. It would look well alongside a vintage Yammie on an SR4

Biff, I didn't put it in the shed, me Da retired it with test hours only on it c.1980. I definitely was a wee fella back in those days (I checked)
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Old 16 September 2010, 07:41   #19
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Originally Posted by BogMonster View Post
15"=short, 20"=long and 25"=XL,
A query: which length do people generally mean when they refer to "Standard" shaft? 20"? I've seen the term on here a few times but couldn't match it to a specific size range in the posts? Is there a common sizing between Short and Long that I've missed
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Old 16 September 2010, 08:59   #20
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Quote:
Originally Posted by willk View Post
A query: which length do people generally mean when they refer to "Standard" shaft? 20"? I've seen the term on here a few times but couldn't match it to a specific size range in the posts? Is there a common sizing between Short and Long that I've missed
I've always assumed they meant short. There is no common size between short and long, but there are a few ex RNLI engines (D class?) which are "mid shaft" length and fall in the middle.
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