craig1410
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| posted on 29/7/07 at 10:49 PM |
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Cortina upright to transit rod end - Castle nut?
Hi,
Something I've been meaning to sort out for ages - my transit drag link or track rod end or whatever it is which attaches the top wishbone to
the cortina upright. The problems is that the threads don't come far enough through the upright to allow me to get the mandatory 2 threads
through the nyloc nut. The threads basically end up level with the end of the nyloc.
My options seem to be to either:
1. File down the nyloc (non nyloc side) to make it a bit thinner. It's an 8.8 grade nut and since there is no tension load between upright and
top wishbone this should be okay (Yes?). I'm only talking maybe 2 or 3 mm.
2. Fit a castle (or castellated) nut and drill a hole for a split pin. What thread is this?
3. Ream out the taper to allow additional engagement. Don't fancy this options much as it involves stripping down the whole front end
again...
So, has anyone else had this problem and if so, which option did you choose.
Advice welcome.
Cheers,
Craig.
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nitram38
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| posted on 29/7/07 at 11:56 PM |
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If you get the nylocs reduced slightly, they will pass sva ok.
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Peteff
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| posted on 30/7/07 at 07:57 AM |
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Westfield used to take a shave off the upright where the nut seats to allow more thread to show through.
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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craig1410
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| posted on 30/7/07 at 08:27 AM |
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Hi Guys,
Thanks for replying - sounds like it's a problem which has been experienced by more than just me then.
Any idea what the minimum nut thickness would be for the nyloc? I think from memory they are thicker than normal nuts anyway, even ignoring the nylon
collar. Am I right in saying I need 2 threads beyond the nyloc? I'll use loctite as a backup as well.
Also, what torque should the two upright nuts be tightened to? I know the bottom one is bigger btw.
Cheers,
Craig.
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David Jenkins
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| posted on 30/7/07 at 08:51 AM |
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It might not be a good idea to file down the back of the nylok nut, unless you can be absolutely sure that you end up with a surface that's 100%
square to the threads. If it isn't square then it's not going to hold as well as one that is.
Do you know someone nearby who's got a lathe? That would be the best solution.
Alternatively, does anyone know of a source of thinner nylok nuts? They do exist, but who sells them?
rgds,
David
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craig1410
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| posted on 30/7/07 at 09:17 AM |
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Good point David.
I don't have a lathe but I'm pretty confident I could do a decent job if necessary by marking the nut carefully beforehand with a scribe
and engineer's blue and then filing carefully to the marks. Using the scribe fixed at a given height I should be able to just rotate the nut and
mark the edges equally.
The other alternative if anyone knows where I can get some is to use those aerotite (sp?) nuts. Sometimes knows as "stiff nuts" I think. I
think they are shallower.
Anyone got a couple spare?
Cheers,
Craig.
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MikeR
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| posted on 30/7/07 at 09:17 AM |
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i think MNR's shop sells them,.
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