M20 transmission locked in reverse
Thread Starter
Racer
Joined: May 2000
Posts: 386
Likes: 0
From: Niedernhausen, Germany
M20 transmission locked in reverse
Obviously I have had a problem with sloppy shifter - so my tranny got into 2nd and reverse. Problem is, I cannot make to get reverse back to neutral (1/2nd and 3/4th I could get back to neutral). Disconnected the linkage and tried to move the triangular lever but without success.
What could be damaged? Is there any trick to get reverse out (maybe whiggle on input and output or else...)?
I noticed that the flat interlock plate in the shifter seems to have much room around it - shall I replace that with the thicker version which came with the shifter (stock 73, mounted to crossmember) rebuild kit?
Thanx for your help!
What could be damaged? Is there any trick to get reverse out (maybe whiggle on input and output or else...)?
I noticed that the flat interlock plate in the shifter seems to have much room around it - shall I replace that with the thicker version which came with the shifter (stock 73, mounted to crossmember) rebuild kit?
Thanx for your help!
Tech Contributor
Joined: Aug 1999
Posts: 15,175
Likes: 3,990
From: Connecticut, USA
Re: M20 transmission locked in reverse (V8yunkie)
Reverse is operated by shifting a separate fork on the tail housing. It moves the large gear on the main shaft to engage the reverse idler gears. Is the reverse fork moving? You may have to remove the tranny and open it to see if something is jammed in there?
Good luck,
Gary
Good luck,
Gary
Burning Brakes
Joined: Sep 1999
Posts: 931
Likes: 0
From: MI
Re: M20 transmission locked in reverse (V8yunkie)
Disconnect all the shifter linkages and use an adjustable wrench to shift in all the gears to see if the tran is messed up. If not, then your shifter needs a rebuild job or could be just simple linkages adjustment.
Pro
Joined: Feb 1999
Posts: 666
Likes: 0
From: Memphis,TN
Re: M20 transmission locked in reverse (V8yunkie)
BEEN THERE, DONE THAT! :banghead:
AT a ONE LANE Railroad bridge! OF course!
THis was in 1980 with a '78 L82 with 20,000 on it!
The ol' Muncie Lakeland shifter SUCKS!
GET the rear end up so you can rotate the drive shaft.
With some wiggle on the wheels, and moving the two center levers to center,-NEUTRAL- and then try to move the reverse lever back to "Neutral".
More specifically "NON BACK GEAR Mode".
I've helped out on this before, hopefully it is the same syndrome.
Did this happen in your driveway or garage I hope?
The trans locked into back gear and any forward gear will lock it HARD.
The venerable -HURST Comp +- shifter is all the difference in the world.
GET ONE!
Good hunting and success!
AT a ONE LANE Railroad bridge! OF course!
THis was in 1980 with a '78 L82 with 20,000 on it!
The ol' Muncie Lakeland shifter SUCKS!
GET the rear end up so you can rotate the drive shaft.
With some wiggle on the wheels, and moving the two center levers to center,-NEUTRAL- and then try to move the reverse lever back to "Neutral".
More specifically "NON BACK GEAR Mode".
I've helped out on this before, hopefully it is the same syndrome.
Did this happen in your driveway or garage I hope?
The trans locked into back gear and any forward gear will lock it HARD.
The venerable -HURST Comp +- shifter is all the difference in the world.
GET ONE!
Good hunting and success!
