International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Tech

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 05-21-2017, 06:55 PM
jraynolds jraynolds is offline
232 I6
 
Join Date: Jan 06, 2015
Location: Livermore, CO
Posts: 64
D20 not engaging

Need some help troubleshooting. My 79 J-10 with 258 and T-18/D20 runs and drives fine in 2wd. Cannot get it to engage in 4hi or 4lo. Hubs are engaged and levers and linkage in shifter are connected and snug (has the factory "U" shifter for the D20). Rods move when shifter is moved. Not sure how to troubleshoot this. Thanks.
__________________
1979 J-10, 258 with 2100 conversion, T-18/D-20
1979 Cherokee Chief WT, 360, T-18/D-20, rust
1967 Pontiac LeMans Convertible, 400 4sp
1968 Mustang 5.0 conversion
Reply With Quote
  #2  
Old 05-21-2017, 07:26 PM
bufurd's Avatar
bufurd bufurd is offline
327 Rambler
 
Join Date: Apr 13, 2008
Location: ashland wi.
Posts: 575
You know you gotta be moving some right? Try unlocking hubs and while your driving don't try to put it in gear but lightly pull back on lever, you should feel it lightly grind the gears. I do this all the time to make sure my Lock-O-Matics are disengaged, I also do it with the hubs locked to see how out of sync my air pressure is front and rear, you'll feel the gears slowly ride over each other, if your air pressure is perfect the gears will both be the same speed making it much easier to get out of 4WD. Point is you can check function while driving, and helps understand that sitting still can make it near impossible to get in 4WD. Your 258, T18, D20 combo is a good one, near my favorite
__________________
Current fleet
Abner-73 He started it all in 1979 (plow truck now)
Bufurd-69 Fixed up to take Abners place as DD
Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
Humpty-74 J-20 4BT, NV4500, 30+MPG
07 JK Wife bought new...
13 Grand Cherokee Trail Hawk, wifes new ride
Reply With Quote
  #3  
Old 05-22-2017, 08:42 AM
jraynolds jraynolds is offline
232 I6
 
Join Date: Jan 06, 2015
Location: Livermore, CO
Posts: 64
My 79 Chief engages fine sitting still. For the J-10 I have tried engaging sitting still and rocking back and forth, still nothing.
__________________
1979 J-10, 258 with 2100 conversion, T-18/D-20
1979 Cherokee Chief WT, 360, T-18/D-20, rust
1967 Pontiac LeMans Convertible, 400 4sp
1968 Mustang 5.0 conversion
Reply With Quote
  #4  
Old 05-22-2017, 09:58 AM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,325
could have sheared the lock pin/clip on the shaft, need to pull it apart to inspect.
Reply With Quote
  #5  
Old 05-24-2017, 05:24 PM
78J10honcho's Avatar
78J10honcho 78J10honcho is offline
350 Buick
 
Join Date: Dec 18, 2005
Location: Knoxville, TN
Posts: 782
You could try locking the hubs, lift the front tires and spin them to ensure the shaft spins with them. Then try it with the transfer case engaged and see what it does
__________________
Ben
78 j10 honcho 360/th400/d20 (sunday driver)...97 F-350 crew-cab 4x4 5-spd PSD (tow rig)
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Compressor clutch not engaging BCrad General FSJ Tech 9 09-01-2014 11:33 AM
4 wheel not engaging weshamiltonxj General FSJ Tech 8 06-03-2012 12:37 AM
Starter not engaging? CJseven General FSJ Tech 8 04-19-2008 06:36 PM
BW Q/T not engaging Annihilation Principle General FSJ Tech 3 11-19-2007 08:12 PM
87 Waggy . . Engaging 4wd PhilG General FSJ Discussion 4 04-07-2007 10:52 AM


All times are GMT -6. The time now is 04:35 PM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
corner corner