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Gear Knobs : Threading Gear Shift shaft ? (with Skunk 2)

Posted: Mon Mar 23, 2009 1:33 am
by Steampunk
? :roll: ?
I don't understand what you are doing wrong.
The only thing I can deduce is that you wound the locking nut down to the very bottom of the thread on the gearstick and THEN installing the knob itself onto the locking nut, then continue to turn the nut and knob further down the thread, forcing it in hopes that it will face the right way.

Tell me if this is what you are doing:
1) install locking nut onto gearstick, with flange facing upwards
2) wind locking nut as far as you can down toward the end of the thread
3) install gearknob and wind it down to the locking nut
4) wind the knob up or down until "H" pattern faces correctly
5) turn locking nut until it locks the gearknob in place

And as for question C, why not just borrow a tap and dye set from someone and do it yourself? 3 minute job.

Gear Knobs : Threading Gear Shift shaft ? (with Skunk 2)

Posted: Mon Mar 23, 2009 5:04 pm
by Mr Morlock
I would not be using a tap and die- it should not be necessary. Usually the knob is threaded internally ie you screw it on to the threaded gear stick ( shaft). A lock nut is put on the shaft and run down to a certain point and then the knob follows. You lock the knob by holding the knob and tightening the lock nut against it. Pressure on the knob to the right and pressure on the lock nut to the left- right position for H patt is a little trial and error. Disregard this if the Skunk has a different system! It is possible that you have stripped the thread on the lock nut- but you usually need quite a deal of force to do this. Get another nut to try. ired5 has said much the same as me.

Gear Knobs : Threading Gear Shift shaft ? (with Skunk 2)

Posted: Mon Mar 23, 2009 7:01 pm
by Okibi
I modified the inside of the knob so it would come down further then adjusted the thread on the shifter so it would finish in the right place.

Gear Knobs : Threading Gear Shift shaft ? (with Skunk 2)

Posted: Mon Mar 23, 2009 7:32 pm
by Mr Morlock
You have a thread length on the shaft and also in the knob. If you buy a bolt you can see how far it will screw into the knob. You can check how much thread is on the shaft and compare the 2. If for example you have 30 mm of thread in the knob and 40 mm on the shaft you can only screw the knob down to max 30 mm . You might be able to see and measure the thread in the knob with a vernier or with a drill bit and metal ruler. If you cannot lock the knob it suggests to me that a thread is stripped- the lock nut, the shaft or the knob. The weakest I would think is the lock nut as the thread is no more than the thickness of the nut. If the knob were stripped you might need a die chaser run into it- it is at worst maybe a minor thread damage. If you want the knob to go lower the constraints are thread length in the knob or thread length on the shaft. Running a button die over the shaft can lengthen the thread but do not forget it will have an interference at some point with the knob. Hope I have not made this too complicated.

Gear Knobs : Threading Gear Shift shaft ? (with Skunk 2)

Posted: Mon Mar 23, 2009 8:28 pm
by Okibi
Nope don't remember sorry.

Hope this link works ..

http://mx5cartalk.com/phpBB-3.0.2/garage.php?mode=view_image&image_id=172