Corvair Forum

At this point, I’m just pulling parts from the ‘62 4-speed to replace missing parts in the ‘64.

Problem is interlock PIN is missing from both.
So I need a replacement pin. Since I can’t find a pin to buy, I need to make one but don’t know dimensions.

Are there any detailed specs on those ...

I can get second interlock from ‘62 but it also doesn’t have the “pin”. (I’ve fished around with magnet and not in bottom of ‘62. )
Can not find one to buy. Anyone have the dimensions, so I can make one.

I suspect it is needed to make shifting and interlock work correctly/smoothly.

Thx,
Larry

I'm back to work on my '64 Corvair that locks-up in 2nd gear.(Too may projects...)

Pulled drive train and started looking at 4-speed transmission synchronizers, but they look OK.

Started disassembly to replace synchronizers anyway but discovered "interlock" parts not all there.
Only one "Interlock ...

Wow. That sounds ominous. Not sure it’s worth that as well as R & R of engine.

Thx for the insight. I would have never guessed that difference.

Maybe repairing transmission is better long term, since I have no idea the ‘62 transmission is good.

Joelsplace, I read your last post again.

Are you saying’62 transmission will not matchup with ‘64 differential?

Pulled second detent next to reverse switch-detent. See pictures.

Appears to be correct sequence (ball spring then cap). But very little if any tension from spring as cap is screened back in. Should there be a spacer to give tension?

Not sure I know how to check detects.

I have removed the reverse switch and detent. I believe it is reinstalled correctly. Ball first, then spring, then switch. ????

I see a second accessible detent but is that for other gears? Like second?

Finally back to the ‘64 Corvair.
Still slipping into 2nd gear.
Last time I had to release parking brake and rock the car to get it out of 2nd thru the side plate.

I have a second transmission off a ‘62 with a locked up engine. This one does appear to shift on the bench. But not easily.

Since I ...

Great suggestions. Thx

Got another project started, so it will be a while getting back to the Corvair. But looking forward to trying these.

Larry

Can the interlocks be worked on without taking transmission apart?

Yes. Fairly easy once I identified what to move.

Once it locks in 2nd, I have to go into transmission side-plate and by hand move rear gear-fork toward rear of car. Lever will not pull it out of gear. Even removing linkage I can’t pull transmission out of gear.

Once unlocked, shifts correctly reverse or first. Have not tried third. (Or fourth ...

‘64 rebuild. New issue.
Four-speed transmission getting stuck in 2nd gear. Not sure why. My guess is synchronizer or shifter linkage adjustment.

Any insight greatly appreciated.

One point- shifter linkage was badly worn at fork on transmission end, so replaced from ‘62 donor car. Appears to ...

Continuing:
(several other project distractions lately)

New issue (well, next layer)
Four-speed transmission getting stuck in 2nd gear. Not sure why. My guess is synchronizer or shifter linkage adjustment.

Any insight greatly appreciated.

One point- shifter linkage was badly worn at fork on ...

Delayed but here is an update from several days ago:

After looking at removing head while In the car, decided to pull engine. (Glad I did - much easier to work on out.)

After pull, it was much easier to pull that head. The exhaust tubes went on super easy (frozen).

Engine back in the car and ...

Thx for the guidance - a real learning experiece.

Fun challenge but very different from other engines I’ve worked.