Banana
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| posted on 4/4/17 at 07:26 PM |
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Required clearance around prop
How much should i expect my prop to move from its center line during driving?
Im making a new gear selector, and the bottom of the lever is going to end up 1/2 inch from the prop..
Thanks
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loggyboy
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| posted on 4/4/17 at 07:36 PM |
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Live axel or IRS?
Live - minimal at gearbox end, few mm to suit gearbox/engine mount movement, but lots as it moves to diff at rear depending on suspension travel.
For IRS expect a few mmat front as above and very little at rear if diff is solidly mounted.
I have designed in about 10mm clearance to my prop catchers.
Mistral Motorsport
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Banana
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| posted on 4/4/17 at 08:19 PM |
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That is a good point.. I have IRS. However, i would still expect the prop to oscillate slightly.
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SJ
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| posted on 5/4/17 at 07:20 AM |
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When I built my MK the supplied prop had a much bigger joint that was standard meaning it hit the chassis when cornering. That was with about 5mm
clearance. When it had 10mm clearance it was fine. I think half an inch should be no problem.
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adithorp
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| posted on 5/4/17 at 08:52 AM |
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It also depends if you have a one piece prop or 2piece with centre bearing. 2piece will move about a bit on the rubber mounted bearing. You should be
able to manually push it about enough to see whether the clearance is enough.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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r1_pete
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| posted on 5/4/17 at 04:43 PM |
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You also need to consider how pliable the gearbox mount is, and the impact of it failing, could the prop hit the underside of your linkage.....
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