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Rocklobster prop question

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17 Mar 2012 17:10 #35729 by kirkynut
Rocklobster prop question was created by kirkynut
I am lucky enough to have a late sammi front prop on the rear of My JimJam with the right flanges (my Mrs still laughes when I talk about flanges on a car!) but I can't remember why we use them - are they longer or shorter than a standard Jimny rear Prop?

Yes I could take mine off and measure it against my old rear prop but that's a faff so I thought I'd pick the brains of those in the know on here!!!

Cheers

Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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17 Mar 2012 17:34 #35733 by Obarno
Replied by Obarno on topic Re: Rocklobster prop question
The original Jimny prop is about 1 1/2 inches shorter than a Sammi front prop. I had an adaptor/spacer made for my rocklobster that bolts on to the Sammi flange and takes the original rear prop.
Manual VVT, 2 1/2" lift, ORA castor corrected arms, 2" ORA body lift, 4:1 transfer box, Uprated front shafts & CVs ERM , ARBs back & front 3.9 diffs, 6 point cage, ORA winch bumper - Superwinch EP9, ORA rear bumper, ORA axle truses, Diff guards ERM , TBR tank guard, Snorkel, Kumho KL71.30.9.50 15

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17 Mar 2012 19:38 #35746 by kirkynut
Replied by kirkynut on topic Re: Rocklobster prop question
Cheers for that.

Next question, why do we all use a longer prop and faff about with getting the right flanges and not just use a prop spacer that has the holes in it for all the different Zuk prop flanges?

Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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  • darthloachie
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17 Mar 2012 20:48 #35758 by darthloachie
Replied by darthloachie on topic Re: Rocklobster prop question
problem with spacers is you end up with steeper UJ angles

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  • adamjimny
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17 Mar 2012 20:54 #35761 by adamjimny
Replied by adamjimny on topic Re: Rocklobster prop question
And the jimny rear only extends a little bit but sj extends quite a few inches more

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18 Mar 2012 06:22 #35774 by kirkynut
Replied by kirkynut on topic Re: Rocklobster prop question
Cheers, I thought the UJ angle might come into it but hadn't thought about the spined part of the prop being longer on the Sj prop to allow more movement of it.

I knew there were good reasons and I'm sure I knew once but the theorist in me wanted the info stored in the old brain cells as I like to know the why's and wherefors with things - not understanding sends me mad!

Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.

My Jimny Thread Here: www.bigjimny.com/index.php/forum/8-my-ji...on-continues?start=0

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