|
|
|
FIXED - Cannot Shift when Top Shift tightened down |
Post Reply 
|
Page 12> |
| Author | |
SpringerKing 
Member 
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: FIXED - Cannot Shift when Top Shift tightened downPosted: 23 Mar. 2019 at 11:31am |
|
So I freshly rebuilt My transmission and at the same wanted to convert over to a top shift for a while. *No column shift parts were damaged in the conversion and all were saved. I plan on converting back when i have the time and space to do a full resto from the frame up.
Onto the issue. I can shift into all gears when the bolts are loosed holding the shift tower to the T90 case, but as soon as I tighten the bolts down to seat the tower I am having binding issues. I can shift it into first gear, with more force than i would expect to need, but not "yarding" on the shift by any means, but once in first i cannot shift it back to neautral or reverse at all. I have to pull the tower off to get things back to neutral. Transmission turns by hand, 1st/Rev. slides by hand without the tower. Could the shift fork be too long? anyone ever run into this before? Edited by SpringerKing - 06 Apr. 2019 at 12:05am |
|
 |
|
|
usmcpmi
Member
Sponsor Member Joined: 01 Mar. 2006 Location: Elgin,Texas Status: Offline Points: 876 |
Post Options
Thanks(0)
Quote Reply
Posted: 23 Mar. 2019 at 3:36pm |
|
Did you use a gasket under the shift tower? Try adding a second gasket if you did..
|
|
|
'48 CJ2A/192948
'15 Wrangler Rubicon Mark G. |
|
|
|
|
Joe DeYoung
Member
Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3358 |
Post Options
Thanks(0)
Quote Reply
Posted: 23 Mar. 2019 at 4:17pm |
|
Maybe the problem is in the shift tower itself. Have you shifted the tower while not on the trans? Maybe you have a detent problem with the shift rails.
|
|
|
Joe DeYoung
to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife. |
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 24 Mar. 2019 at 1:51am |
|
I did not put a gasket in yet, i was testing it all out before doing to final assembly.
As far as the tower goes, i can shift it when it is off the tower. I did not rebuild it at all though. I was thinking that was going to be my next step. Thanks for the ideas.
|
|
|
|
|
ndnchf
Member
Sponsor Member x 2 Joined: 22 Sep. 2017 Location: Virginia Status: Offline Points: 2177 |
Post Options
Thanks(0)
Quote Reply
Posted: 24 Mar. 2019 at 11:04am |
|
Be sure the shift forks are fitting into the collar grooves, its easy to miss them when installing the tower.
Another thought. Do you have another shift tower that you can try?
|
|
|
1948 CJ2A - It goes nowhere fast, but anywhere slow.
|
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 24 Mar. 2019 at 11:11am |
|
Nope, I don't have another tower to try. I picked the one I have up on Ebay and it is in good shape, so I am slightly puzzled.
I will double check the forks. Since I could shift into first no problem i thought they were in the collar, but it wont hurt to check. |
|
|
|
|
47 deuce alpha
Member
Joined: 07 Aug. 2017 Location: Midland Texas Status: Offline Points: 656 |
Post Options
Thanks(0)
Quote Reply
Posted: 24 Mar. 2019 at 2:44pm |
|
Sounds like it could just be a matter of clearance. Maybe try bolting the tower on with shims between the tower and the top of the transmission case. Tighten it down, if it doesn't shift loosen the bolts and try a slightly thicker shim. If you find the spot it will shift install a gasket of that thickness (providing the gap is not excessive). It's quick and easy to try before you rebuild the shift tower.
|
|
|
1947 CJ2A 90419
1947 CJ2A 127735 1949 Ford 8N 1955 Kaiser Willys Pickup Half the distance takes you twice as long. |
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 25 Mar. 2019 at 11:42am |
I am going to give this a shot. I was hoping someone on here might have experienced this before, however I will report back once I get a chance to give this a try. |
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 12:58pm |
|
Just wanted to give an update, progress is slow at the moment because I am trying to remodel a house so that my family and I can move out of our current apartment.
Last night I put 1/4 inch of gasket material and am still getting some binding shifting 1st/reverse. I have no problem with 2nd/3rd. I am going to try putting in another 1/16th of gasket material and see if that alleviates the problem. If so I am going to put gasket maker between each layer and sandwich them together and do the final install. This seems excessive to me but maybe the case was machined down in its previous life, who knows. |
|
|
|
|
Joe DeYoung
Member
Sponsor Member x 2 Joined: 20 July 2005 Location: Madison WI Status: Offline Points: 3358 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 1:06pm |
|
Is the 1st/rev shift fork loose on the rail? if so, maybe it tips when your try and shift and that is causing the gear to try an tip on the main shaft and possibly bind. Does your main shaft have a slight burr or worn step causing it to hang up? I could see either scenario or the combination of them is causing your problem.
|
|
|
Joe DeYoung
to many jeeps, parts, and accessories to list here, but apparently enough to keep me in trouble with my wife. |
|
|
|
|
ndnchf
Member
Sponsor Member x 2 Joined: 22 Sep. 2017 Location: Virginia Status: Offline Points: 2177 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 1:08pm |
|
Seems to me something is not right with your shift tower. You said you bought it off ebay. Maybe its not compatible with your T90, maybe from a much later model. I think I have an extra shift tower. If you want to try it, I'll send it to you just for the postage.
I have no idea what it takes to convert from side shift to top shift. Could there be any remaining side shift parts inside that are interfering with the top shift?
|
|
|
1948 CJ2A - It goes nowhere fast, but anywhere slow.
|
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 1:32pm |
|
Joe: The shift fork seems tight and the main shaft + 1st/reverse are new with the rebuild.
ndnchf: I am thinking the same thing, the tower has t90 stamped into it, but I dont know what year its from unfortunately. If you have one you would be willing to part with, that would be fantastic, I will send you a PM right after this. I don't think there is anything in there causeing a problem because everything slides easily without the tower on it. Its only when I tighten the tower down.
|
|
|
|
|
Stev
Member
Sponsor Member Joined: 27 July 2016 Location: Cincinnati Status: Offline Points: 2384 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 3:08pm |
|
SpringerKing,
Looks like lots of good ideas - Joe suggested checking the scenarios which is what I would suggest also. If one is stuck it could cause a problem like you are experiencing. They should move freely if they are stuck against the ramp it can be impossible to shift. Stev |
|
|
Stev
1946 CJ2A Trail Jeep (The Saint), 1948 CJ2A Lefty Restored |
|
|
|
|
athawk11
Member
Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4151 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 3:50pm |
|
Having to shim out 5/16" would be excessive.
Is is possible that the 1st/Reverse shift fork was installed backwards on the rail? Edit: Upon further review, I don't think you can install 1st/Reverse backwards.  You can install 2nd/3rd backwards.Could the fork be bent? Edited by athawk11 - 01 Apr. 2019 at 4:05pm |
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 4:17pm |
I thought that would be excessive too... I will take the assembly back off tonight and take a close look at it. This may be a dumb question, but could the forks have been reversed where the 1st/revsere fork is in the 2nd/3rd spot and vice versa? |
|
|
|
|
ndnchf
Member
Sponsor Member x 2 Joined: 22 Sep. 2017 Location: Virginia Status: Offline Points: 2177 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 4:25pm |
|
Can you post good clear photos of the trans and shift tower?
|
|
|
1948 CJ2A - It goes nowhere fast, but anywhere slow.
|
|
|
|
|
SpringerKing
Member
Sponsor Member Joined: 08 Mar. 2018 Location: Michigan Status: Offline Points: 38 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 4:34pm |
I will take a bunch tonight after work, I have not taken any yet.
|
|
|
|
|
athawk11
Member
Joined: 18 Jan. 2012 Location: Arvada,Colorado Status: Offline Points: 4151 |
Post Options
Thanks(0)
Quote Reply
Posted: 01 Apr. 2019 at 8:57pm |
Good thought, but no. Different fork diameters/sizes.
|
|
|
1- 1946 CJ2A
2- 1949 CJ3A |
|
|
|
|
Post Reply
|
Page 12> |
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
47 deuce alpha wrote: