Daddylonglegs
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| posted on 24/7/05 at 07:50 PM |
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Prop Shaft
Evening all. I have managed to acquire plenty more 'bits' towards my build. I recently bought a large colection of sierra stuff including
engine/gearbox etc. I was also given the prop shaft but it is a 2-piece affair. I guess it needs to be a one piece for several reasons?
Any ideas on how I can convert it? I have not got around to measuring up for distance between rear axle and gearbox, but would there be enough length
with just the forward section tube of the split prop?
Any help gratefully received.
JB
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givemethebighammer
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| posted on 24/7/05 at 08:02 PM |
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Get it done professionally, it'll cost you less than £100 for a complete new one.
someone like
http://www.autopropuk.co.uk
will sort it for you.
Basically if you do it yourself and don't balance it properly it'll probably break and at high speed this could be very nasty (as a few
people on this forum can testify to).
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DarrenW
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| posted on 25/7/05 at 08:15 AM |
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One option you have is to retain the rear section that bolts to the diff and get Mac#1 to weld a new nose piece on the front. They sell the nose piece
for around £48 or do the job for £65 iirc. Give Mark a call if you are interested. i looked into this for mine, Mark advised that the rear UJ is
rarely worn and can often be re-used. Just tell them the tube OD and they will be able to confirm the price.
I didnt go this route as i do some work with IMS on College Road in Birmingham (Perry Bar area) who did me a good price. They are a large UJ &
Prop maker and recently did the drive train components for the new Batmobile.
IMS number is 0121 344 5500. I dealt with the owner and also Workshop manager - Paul Randle.
I calculated my length as follows - distance from end of gearbox to diff mounting face and also told them that i needed 1" behind the nose
(basically this means that 1" of the nose section is showing, the rest is inside the gearbox).
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NS Dev
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| posted on 25/7/05 at 08:34 AM |
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If the tubes in the front and rear sections are the same diameter (I can't remember!) and either the front or rear section's
"tube" will be long enough to make the prop from then remove the front (or rear) yoke using uncle Ron's instructions in "the
book", then clean up the tube and take it to a propshaft place who will part the tube to length and weld on the other yoke and then rebalance
it.
I have done this several times (on Opel Mantas) and usually pay £50 cash.
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Daddylonglegs
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 posted on 29/7/05 at 12:06 PM |
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Just realised a big problem (I think).....
The front has the splined connected to a rubber cush drive affair, and the front of the rear section (the longest bit) goes into the centre coupling.
Is it going to be possible to remove the front of the front section and use it on the front of the rear section ? If all that makes sense ????  
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MikeRJ
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| posted on 29/7/05 at 02:16 PM |
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quote:
Originally posted by Daddylonglegs
Just realised a big problem (I think).....
The front has the splined connected to a rubber cush drive affair, and the front of the rear section (the longest bit) goes into the centre coupling.
Is it going to be possible to remove the front of the front section and use it on the front of the rear section ? If all that makes sense ????
No, the standard Sierra front nose is not really usable. The rubber cush drive is a bit large to fit in the transmission tunnel, and the splined part
is not really useable by itself. As Darren said, you will need a new front "nose" at the very least. Personaly I will be getting a
propshaft made professionaly. They aren't expensive, and the injuries a broken, flailing propshaft could do aren't worth taking short
cuts for.
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NS Dev
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| posted on 30/7/05 at 11:06 AM |
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use the front off a capri prop, they don't have the cush drive.
Obviously check the joints for serviceability, and get it professionally welded and balanced.
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Peteff
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| posted on 30/7/05 at 02:41 PM |
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Transit uses an ordinary type 9 box front coupling as well.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Daddylonglegs
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| posted on 30/7/05 at 08:42 PM |
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Thanks for the input guys.
Not sure what to do yet. Been quoted £120 for a new prop shaft including delivery and £95 for a recon one.
I've got to check but I uess I just let them know the length required and they will make to order?
JB
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JoelP
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| posted on 30/7/05 at 09:51 PM |
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yup, thats pretty much it. Make sure you tell them the exact length from the gearbox to the flange, and if it is a live axle or not. The tell them you
want an inch of play (ie 1 inch shorter). Should be fine. £120 is a fair price IMHO
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Daddylonglegs
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| posted on 31/7/05 at 02:00 AM |
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Reckon you're right about the price. Thing is, I won't need it for a while as I'm only just starting to build the chassis
So it gives me time to save me pennies!
JB
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