Gearbox reverse stop pin.

[johny]

You might be able to hammer an aluminium disc into shape but need a former and a bit of skill🤪

[Pete Lewis]

and with many of the remote kits the spherical washer is cropped with sharp  edges that

unless its fettles before fitting can mince the new ball in days 

pete

[rulloyd]

Between the reverse stop plate and bolt, is there an optimum gap between the range quoted in the pic. please? ie if I made the gap the median .030” is that the best bet?  Or is smaller better?  😬

[johny]

I suppose if possible the optimum position is where you lean the lever over and it comes into contact with the stop plate just where it needs to be to slide smoothly into 1st gear. Certainly dont want the lever restricted so that you cant go easily into first or prevents a racing change to second! Anyway all a bit arbitary as difficult to judge when the lever is exactly vertical....

[Pete Lewis]

it could be less but there needs some float to accommodate variations in heat 

Pete

[SpitfireGeorge]

Just fitted the spring washer and it seems a good fit. Had to deform it to remove the spring effect. Have changed gear a few times and it is still in place. I will see how it goes.

Cheers,

Brett

 

[johny]

Interesting, what washer did you use?

[SpitfireGeorge]

Hi Johny,

I bought the 1/2 inch spring washer off ebay. I bought 2 types, 1 was thin similar to the circlip supplied in the washer kit and the 2nd had a wider cross section. I used the first one. Could have done with a bit of filing to make the cross section thinner but once I put it on I could not get if off to do it!

Cheers,

Brett

[Josef]

On 08/04/2024 at 13:08, SpitfireGeorge said:

My stop pin has a flat along one side, is this to allow it to run under the stop plate when selecting reverse gear?

This is wear, it should be round. They were NLA the last time I looked, but I turned down a bolt as a replacement. If you’ve not got a metal lathe you could probably start with a cut down stud, or longer bolt, so you get a non threaded section. Though I think the non threaded bit needs to be narrower than the nominal threaded diameter.

[SpitfireGeorge]

Thanks Josef. I have turned the flat side to the bottom. See how it goes.

Cheers,

Brett

[johny]

Its a hell of a lot of wear and I wonder if a PO drove with his hand pushing on the gearlever all the time, either that or drove backwards a lot😁

[Peter Truman]

An side issue with pushing the gearstick all the time, for our sins my son had an Alfa 33 in his youth and we had to get the gearbox rebuilt by the local Alfa specialists, who advised it needed new selector forks which is not unusual on Alfa's as the Italian hot drivers always held the gearstick even when in gear pushing the brass selector forks into contact with the selector gear causing the fork to wear down very very thin!. Since then I have never held the gearstick after changing gear!