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Gear Selection Conundrum

Started by humph , Feb 22 2021 10:32 PM

Best Answer GraemeC , 23 February 2021 - 09:02 AM

Ok. Auto subframe did not have the engine moved forward. That happened with the introduction of the HIF carbertors.

yes a rod type change will not fit in the hole for a remote change without cutting the tunnel. Has yours been modified so everything is aligned correctly? A bit of wear in the old gearbox may have hidden issues that are now shown with the new set up. But it would have to be very out....

Interesting about the engine not being further forward. I'm not aware that the previous tunnel (new floor) had been modified, will scrutinise the teardown pictures again. What do you mean modified so everything aligns correctly?

Nick is correct about the engine placement and that if you use the standard shifter rods the rod change mechanism doesn't usually fit well in the existing hole.

However, you can use whatever linkage rods work best for you, just position the rear support accordingly. I have previously used Metro linkage rods in an autotest car which are quite a bit longer, but they put the gearstick in a better position for me (although would've been a pain with the handbrake if I hadn't been running a vertical hydraulic one in that particular car). However you must use them as a 'pair'.

The longer shift rod is shown on this diagram but both lengths looks to be NLA. However it is just 1/2" diameter rod with a hole at each end, so easy enough to make.

http://www.minispare...ism.aspx?1~4~44

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17 replies to this topic

#16 Spider

Moved Into The Garage

Admin
13,929 posts

Location: NSW
Local Club: South Australian Moke Club

Posted 25 February 2021 - 07:15 PM

I’ve read about these recently - I think Spider knows more.

IIRC it was a buffer to prevent overthrowing the synchro on later boxes

I don't know more but reading on with interest ! I have found the very late Gearbox Cases, when assembled do over-throw in 4th, to the point where the detent balls in the Hub can lock the Gearbox in 4th or have them fly out. I've never been able to understand though, how this hasn't be an issue that's arisen much. I've now seen this plastic / nylon spacer but then I've never had a very later shifter either, though, this could well explain how the factory got around the issue.

All the same, I can't help but see it as a bit of a 'bodge' fix. You'd only need to have the Steady Rubber in the Diff Cap fail or anything that can make the shifter housing move forward - and not by much (about 4 - 5 mm) and it could overthrow in that way.

Prior to this arrangement, the Overthrow Stops were on the selector forks and the bosses machined in to the Gearbox Case.

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#17 KTS

Up Into Fourth

TMF+ Member
2,271 posts

Location: Herts

Posted 25 February 2021 - 07:55 PM

mine is an '81 and has the plastic collar. couldn't tell you if the shifter is original though (..not much of the rest of the car is )

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#18 humph

How bad can it Be?

TMF+ Member
1,065 posts

Posted 27 February 2021 - 03:51 PM

UPDATE: So longer gear selector rod fitted and can now select all gears including reverse, until I fit the bias barrel.

I’ve stared another thread for this issue in case anyone has the same problem in the future.

https://www.theminif...-barrel-fitted/

Edited by humph, 27 February 2021 - 04:33 PM.