16 replies to this topic

[S pack]

I need to strip my gear level so I can have it re-chromed. I noticed that there is a pin that goes from one end to the other. I removed this far enough for the pin to clear the lever. However I can not remove the lever from the rest of the components.

Can i please have instructions on how to do this.

Aussie M20, M21 shifter?
You have to completely remove the pivot pin. There should be wave washers and or large curved thrust plates between the selectors - take note of where these are located before dismantling everything, close up photos are a good idea for reassembly reference.

Lock the shifter main housing in a vise by the mounting flange so the gear stick is horizontal and the 1st/2nd and 3rd/4th selectors are uppermost.
Set the gearstick in the reverse gate, completely remove the pivot pin, then push the gearstick with the reverse selector engaged down into the housing.
At the same time maneuver the 1st/2nd and 3rd/4th selector levers down and out of the housing (not quite as easy as it sounds). Then remove the gearstick and the reverse selector.
Putting it back together is a bit more fun.
Hope this helps, Good luck!

Cheers
Dave

[Statler]

I'm guessing that it is a M-box 4speed shifter?

The 'pin' has to come all the way out before the selector rod can be removed.
That means a complete dis-assemble.

Pay attention to how it comes apart. Preferably take pics before you do if you dont have previous experience. Take note of the positions of the shims for reassembly.

Once you have done it once, you can do it again. Bit like a Rubiks cube really.

[rodomo]

Some pics and info in this thread starting at post #88
http://www.gmh-toran...st/page__st__75

[76lxhatch]

Its from wear, but it shouldn't have too much effect. Normally you can rotate the shaft 90 degrees and it will stay put so it uses a fresh area.

[ls2lxhatch]

I don't know what it is but it looks to well shaped to be the result of wear. Is there anything on the shifter that contacts that area of the rod?

[S pack]

I don't know what it is but it looks to well shaped to be the result of wear. Is there anything on the shifter that contacts that area of the rod?

Yes, there is a short piece rod welded across the bottom of the shifter plates that straddle either side of the pivot shaft. The rod stops the shifter (gearstick) from popping up too far due to the spring loading for reverse. Does that make sense?

Anyway, I agree the wear pattern is a bit unusual and I noticed that yellow zinc coating in the wear area shouldn't be there if the metal has been worn away.

Edited by S pack, 29 March 2011 - 01:34 PM.

[ls2lxhatch]

I think 1ARC had the parts zinc coated and the shifter re-chromed as part of the rebuild.

[Statler]

When you reassemble it, remember to put the spring & plastic bit back on the when fitting the shaft.

I've slipped up on that a couple of times & i should know better. lol

[S pack]

I think 1ARC had the parts zinc coated and the shifter re-chromed as part of the rebuild.

Oh, Ok.
Looks like the zinc plating on the pivot pin is a pretty ordinary job then.

[S pack]

I had a practice go and thats why the pin is in this condition. There is a tight fit between the pin and the levers. The rest of the plating is great.

I have three shifters, two of the pins have the indent and one does not have the indent. For the two that have the indent, the gearstick has a vibration knob at the bottom of the gearstick and I assume are from later models. The pin that does not have an indent has a longer gearstick and does not have the vibration knob, I assume its from a HQ or earlier.

I, like Andy, believe that the indent is to defined but I agree that there is some wear in the indent.

It seams that the indent is there to accommodate a short piece of rod welded across the bottom of the shifter plates.

If its wear then I can rotate the pin, however, if the indent is there for a reason then I may be affecting the operations of the shifter.

Any suggestions or comments are welcomed.

There should not be an indent in the shaft, it is due to wear and tear. I put a brand new genuine NOS pivot shaft in my LJ shifter many moons ago and it did not have any indents. Still got my original worn pivot shaft, can post pics if you want.
Just had me a bit miffed about the zinc plating in the indent, thanks for clearing that up.
Turn the shaft 90 or 180 degrees when you install it so the rod is bearing on an unworn part of the pivot shaft.

Cheers
Dave

[S pack]

Thanks Dave. I will rotate the pin. Is there a special grease to use on the shifetr assembly or will bearing grease do as well.

I use the white zinc oxide grease on the shifter mechanism (it has water resistant properties) but you could probably use high temp bearing grease, may not be as good though for the intended application.