namless
Club Retro Rides Member
Posts: 580
Club RR Member Number: 26
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track rod endsnamless
@namless
Club Retro Rides Member 26
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Aug 24, 2011 21:15:18 GMT
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hi guys, wondering if some one could shed some light.
what is the minimum thread count / turns required on a track rod end before it can be considered unsafe? it is a M14 thread.
thanks,
Gobs
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Aug 24, 2011 21:44:10 GMT
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Track rod ends generally seat using a taper so any thread exposed past the locking mechanism (nylon or split pin) should be fine as long as the joint is done up tight.
I'm editing because I just realized you probably mean the thread into the rack.... as a rule of thumb try and get at least twice the diameter of the rod threaded in, so for M14 aim for 30mm as a minimum. (that's probably 20 turns if it's a 1.5mm thread)
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To get a standard A40 this low, you'd have to dig a hole to put it in |
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scruff
Part of things
Posts: 621
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Aug 24, 2011 22:25:17 GMT
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What he said seems sensible.
If you can't get that try a different make of TRE - some are longer than others.
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1994 Lotus Esprit - Fragile red turbo with pop up lights.
1980 Porsche 924 - Fragile red turbo with pop up lights.
I spy a trend...
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namless
Club Retro Rides Member
Posts: 580
Club RR Member Number: 26
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track rod endsnamless
@namless
Club Retro Rides Member 26
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thanks Guys.
now this is what confuses me
what difference would that twice the length i.e 30mm on the outer track rod make, when the inner track rod is screwed on to the rack with a m14 1.25 with 15mm of thread?
i mean both parts got the same amount of load or am i wrong?
basically i want to replace a track rod end with a rose joint but all the female rose joint are 15mm shorter then the track rod
thanks,
Gobs
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stueyt
Posted a lot
Saving cars from the scrapyard.
Posts: 1,682
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Aug 25, 2011 10:23:32 GMT
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Usually (in the ones I have seen) there is a small hole in the track rod end, if you use a small drill bit and the drill goes through it is out of safety, if the drill bit doesn't go through then the threads are in safety. If that makes sense.
Cheers,
Stu.
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Always looking for the next project!
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scruff
Part of things
Posts: 621
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Aug 25, 2011 13:40:08 GMT
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Same load both ends. 15mm/10 turns seems very short for M14.
Can you not get a longer bar either made up or off the shelf? Even better get one with a LH thread at one end and a RH thread at the other (and the corresponding rose joints and lock nuts of course!) then you can simply twist the bar to adjust the length instead of taking things to bits...
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1994 Lotus Esprit - Fragile red turbo with pop up lights.
1980 Porsche 924 - Fragile red turbo with pop up lights.
I spy a trend...
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CIH
Posted a lot
Posts: 1,466
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Aug 25, 2011 19:07:11 GMT
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why do you want to rosejoint the TRE ? I can't see there being much benefit.
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Aug 25, 2011 19:12:39 GMT
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^ I was wondering that too....
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To get a standard A40 this low, you'd have to dig a hole to put it in |
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namless
Club Retro Rides Member
Posts: 580
Club RR Member Number: 26
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track rod endsnamless
@namless
Club Retro Rides Member 26
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Aug 25, 2011 21:39:37 GMT
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bring the steering back to where it belongs after a drop. not mine but to give you a rough idea.  |
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Last Edit: Aug 25, 2011 21:40:00 GMT by namless
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scruff
Part of things
Posts: 621
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Aug 26, 2011 11:25:05 GMT
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I suppose it's not under any load in any direction other than in line with the TRE/RJ so should be OK...
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1994 Lotus Esprit - Fragile red turbo with pop up lights.
1980 Porsche 924 - Fragile red turbo with pop up lights.
I spy a trend...
|
|
CIH
Posted a lot
Posts: 1,466
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Aug 26, 2011 19:23:34 GMT
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bring the steering back to where it belongs after a drop. not mine but to give you a rough idea. Ah. 'see it alot with slammed drifter 200SX'  doesn't seem to cause them much grief though. |
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