JC
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| posted on 5/10/06 at 08:49 PM |
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Basic thread cutting question
Sorry, I know its noddy but I need to cut an M12x1.25 thread onto a track rod. Do I need to machine the rods to 12mm or some other diameter, if so
what?
(ps if anyone has an m12x1.25 die I could borrow... )
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owelly
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| posted on 5/10/06 at 09:20 PM |
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The rods do need to be 12mm dia. And if your machining, it may be a good idea to put a chamfer on the end to help the die start.
I often use the tailstock to hold the die square, and turn the heastock chuck by hand to get things started.
HTH if you can see what I mean??
http://www.ppcmag.co.uk
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liam.mccaffrey
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| posted on 5/10/06 at 10:25 PM |
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owelly
thats how i do it too
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Syd Bridge
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| posted on 6/10/06 at 08:14 AM |
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Die??
If you're using a lathe, just cut 'em using the lead. Well, that's if you haven't got a die, and don't want to spend the
money.
Cheers,
Syd. 
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02GF74
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| posted on 6/10/06 at 08:16 AM |
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what track rod is it? mk2 escort is M14 x 2.0
and are you using own bar or using existing track rods? The ones on racks from rally design are hardened so you ain't gonna be able to use a
die; but cut on a lathe.
ford track rods have a rolled thread so the bar is thinner than the o.d. of the threaded part - you can't extend thread.
this info is parobably of no use to ya ....
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JC
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| posted on 6/10/06 at 08:59 AM |
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Thanks,
I am asking someone to do this forr me as a favour so wanted to make sure that I ask for the right thing! Wasn't sure if they would be able to
cut a fine thread so am preparing a manual back up plan! I am using the arms from the Fiesta rack - cut through them Ok with a hacksaw so I'm
presuming that they're not hardened!
JC
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