2b_pablo
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| posted on 28/10/07 at 09:26 PM |
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brown trousers moment!
driving up an offramp on local motorway when hell erupted in my transmission tunnel. seems my prop had a rubber donut which at that moment
disintegrated.
tunnel got pounded until i got stopped and was very lucky it didnt come through and mangle my leg!
ripped a hole in the floor pan tho.
so obviously I wont be refitting a prop donut so can anyone tell me what I need to be fitting as a propshaft? All sierra gear with T9 box.
just as I was selling up to buy a BEC too 
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rusty nuts
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| posted on 28/10/07 at 09:30 PM |
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Get a decent prop company to make one for you . Bailey Morris in Eaton Socon near St Neots are very good.
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blakep82
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| posted on 28/10/07 at 09:35 PM |
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and while you're at it, convert to BEC if thats what you want to do!
________________________
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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Avoneer
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| posted on 28/10/07 at 09:42 PM |
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I've got a nice prop you can have for free (it's got a car attached to the rest of it though).
Pat ;-)
No trees were killed in the sending of this message.
However a large number of electrons were terribly inconvenienced.
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cerbera
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| posted on 28/10/07 at 10:13 PM |
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quote:
Originally posted by Avoneer
I've got a nice prop you can have for free (it's got a car attached to the rest of it though).
Pat ;-)
lol. Nice sales pitch!
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blakep82
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| posted on 28/10/07 at 10:15 PM |
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quote:
Originally posted by cerbera
quote:
Originally posted by Avoneer
I've got a nice prop you can have for free (it's got a car attached to the rest of it though).
Pat ;-)
lol. Nice sales pitch!
he's been trying that one all day! tried it with a english axle too! can't even give the car away! lol
________________________
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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cerbera
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| posted on 28/10/07 at 10:23 PM |
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If we is givin it away....... Me will have it 
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geoff shep
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| posted on 28/10/07 at 10:55 PM |
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You can get a propshaft made up with a UJ in place of the donut (which was more of a shock absorber than a UJ in the original Sierra fit). RH used to
do one to fit using your supplied front and back ends - not sure if present company do the same but plenty of other suppliers. Good job its got a
thick tunnel wall not alloy sheet.
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westcost1
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| posted on 29/10/07 at 10:44 AM |
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Im going to fit a prop retaining band bit of flat section bent to form a U shape and bolted through the floor this keeps it from flapping about if it
all gose wrong. my brothers boss has one fitted to his race cobra.
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Vindi_andy
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| posted on 29/10/07 at 12:14 PM |
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I thought the rubber donut was on the MT75 on the higher spec sierras as was previously mentioned to ease the power take up
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2b_pablo
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| posted on 29/10/07 at 01:33 PM |
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quote:
Originally posted by westcost1
Im going to fit a prop retaining band bit of flat section bent to form a U shape and bolted through the floor this keeps it from flapping about if it
all gose wrong. my brothers boss has one fitted to his race cobra.
cracking idea mate!
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2b_pablo
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| posted on 4/11/07 at 09:57 AM |
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pics added - was nasty one alright!
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blakep82
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| posted on 4/11/07 at 01:00 PM |
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ooooh, close to taking out a brake line too 
________________________
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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2b_pablo
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| posted on 4/11/07 at 01:51 PM |
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guess whats being rerouted 
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MikeRJ
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| posted on 4/11/07 at 04:58 PM |
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quote:
Originally posted by geoff shep
You can get a propshaft made up with a UJ in place of the donut (which was more of a shock absorber than a UJ in the original Sierra fit).
Yep, the device fitted to the sierra propshaft is simply a cush drive to asborb any vibration. It has no capacity to absorb any angular movement of
the proshaft, and in fact has a pin that fits into the splined section to prevent any movement. It must be used with a UJ at each end of the prop, or
preferably thrown in the bin.
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Bob C
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| posted on 4/11/07 at 05:32 PM |
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The pin actually goes into a spherical bearing to allow angular movement.
Note that an almost identically similar joint was used in the driveshafts of quite a lot of cars with IRS (imp, original elan, GT6) so they can take
a) a lot of torque and b) up to nearly 20 degrees (I had an elan.......).
In the particular application above it looks as though too much of the spline was used, i.e. the prop was rather shorter than it should have been, so
the gearbox part of the joint was able to move over an inch away & defeat the failsafe centre pin. I'd also suspect it had been on the way
out for quite some time! Regardless, it must have been a very unpleasant experience!
Bob
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2b_pablo
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| posted on 4/11/07 at 07:47 PM |
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my m3 had one (rubber donut) so it cant be that bad, prob as old as the donor tho lol 20yrs
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MikeRJ
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| posted on 4/11/07 at 10:16 PM |
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quote:
Originally posted by Bob C
The pin actually goes into a spherical bearing to allow angular movement.
Ahh, mine must have been seized solid because I couldn't get it to move at all. Crappy thing anyway that have no place on a 7.
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