will121
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| posted on 4/2/10 at 09:10 PM |
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anyone just watched myth busters, propshaft failure??
myth busters just tried out the results of a propshaft failure and weather it would pogo a car or not, well it didnt pogo in a big mussle car just
lifted rear about a foot of the ground and bent the prop up into the boot but think it would be a bit more dramatic in a light kitcar! they also added
a big pothole to increase the effect but does make you rethink the requirement of propshaft retension device
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beagley
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| posted on 4/2/10 at 09:20 PM |
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What about something like a journal bearing that sits just below the prop but obviously large enought to cradle it?
Don't really know how you would keep it lubricated though as I could see the shaft climbing the side of the trough and causing some havoc.
Even something in the basic shape of \_/ ? Has this been done before?
Edit: good episode of MB too
[Edited on 2/4/2010 by beagley]
I'm not scared!!! I'm just marking my territory.
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Minicooper
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| posted on 4/2/10 at 09:21 PM |
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Years ago I was following an old style large mercedes van when all of sudden the back end shot up in the air by about 6 foot, I could see the engine
in the front of the van!
The propshaft shot out the bottom spinning like crazy got some grip then shot sideways on to the hard shoulder, I wouldn't fancy being anywhere
near one when it lets go
Cheers
David
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jacko
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| posted on 4/2/10 at 09:27 PM |
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Iv seen this happen twice when i did car grass track racing and yes they both pogo-ed
Jacko
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plantman
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| posted on 4/2/10 at 09:32 PM |
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OOooo that's interesting i use to the work at a place that used toyota hilux pickups really good trucks and the throttle didn't stick o n
them either haha
anyway either one rear spring broke and the propshaft came out or the prop failed and the spring broke with the force anyway it dug a very large hole
in the road and the truck ended up over the edge in a field.
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MakeEverything
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| posted on 4/2/10 at 09:50 PM |
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I just want to add, that i dont have any of the above problems!! 
ALTHOUGH.... - I did have the CV bolts remove themselves and dent the bottom wishbone a bit. 
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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StevieB
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| posted on 4/2/10 at 10:26 PM |
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I had all bolts on both ends of both driveshafts come loose on me - fortunately I found it by chance before something really bad happened.
Not sure how it happened, but now they're all lock wired in.
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Liam
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| posted on 4/2/10 at 10:45 PM |
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quote:
Originally posted by beagley
Even something in the basic shape of \_/ ? Has this been done before?
[Edited on 2/4/2010 by beagley]
Even better shape: O
i.e. a chuffin thick steel strap/bar all around the propshaft. Common practice for big power machines in the states. Just google image search the US
translation 'driveshaft loop' and have a look. I'm considering some on mine - especially my front prop that has no real protection
from the tunnel structure.
Liam
[Edited on 4/2/10 by Liam]
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designer
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| posted on 5/2/10 at 08:43 AM |
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Sevens should always have a retaining strap fitted in the prop tunnel.
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blakep82
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| posted on 5/2/10 at 09:26 AM |
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how long is the prop in a 7?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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Bluemoon
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| posted on 5/2/10 at 10:01 AM |
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quote:
Originally posted by blakep82
how long is the prop in a 7?
about 1m..
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dan__wright
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| posted on 5/2/10 at 10:02 AM |
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i think its about 90cm on a cec and about 1.2/1.3 on a bec
FREE THE ROADSTER ONE…!!
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mcerd1
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| posted on 5/2/10 at 10:03 AM |
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do a search for 'prop catcher' on this site - its come up a few times
I think the best way has to be two round steel ones - one near the front and one near the rear
quote:
Originally posted by blakep82
how long is the prop in a 7?
my dax ones only about 2 ft I think (I'd have to measure it though)
I think most of the other ones are longer.....
[Edited on 5/2/10 by mcerd1]
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mangogrooveworkshop
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| posted on 5/2/10 at 01:17 PM |
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quote:
Originally posted by mcerd1
do a search for 'prop catcher' on this site - its come up a few times
I think the best way has to be two round steel ones - one near the front and one near the rear
quote:
Originally posted by blakep82
how long is the prop in a 7?
my dax ones only about 2 ft I think (I'd have to measure it though)
I think most of the other ones are longer.....
[Edited on 5/2/10 by mcerd1]
Rob Did you have to take it out the wrapper to put the tape against it?
[Edited on 5-2-10 by mangogrooveworkshop]
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mcerd1
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| posted on 5/2/10 at 01:37 PM |
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^^ it was already out the wrapper (it currently lives behind the sofa in the living room) someone else wanted to know size of the bolts that came with
it
[Edited on 5/2/10 by mcerd1]
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