Weird issues in reverse... - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Join the Defender Source Community Today
Reply
 
Thread Tools
  #1  
Old October 17th, 2016, 12:00 AM
spaeth's Avatar
spaeth
Status: Offline
Craig Spaeth
93 RRC LWB 300TDI
Member
 
Join Date: Sep 2011
Location: White Salmon, WA USA
Posts: 93
Weird issues in reverse...

I have a 93 RRC with a LT230, automatic transmission and TruTrac limited slip diffs in both front and rear. When backing up there is a real notchiness to how the rig moves in reverse. There is no feeling of this when moving forward only in reverse. Seems to be worse when backing up hill vs downhill or flat. The transmission was gone through when I first got the truck. Just trying to narrow down where to start with this.

Thanks in advance for any ideas.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old October 17th, 2016, 12:12 AM
Davis's Avatar
Davis
Status: Offline
Chris Davis
94 D90, 88 RRC
Member
 
Join Date: Nov 2003
Location: Colorado
Posts: 2,111
FYI-- not that it matters for your symptoms, but the LT230 is a transfer case...
Reply With Quote
Sponsored Links
Advertisement
 
  #3  
Old October 17th, 2016, 12:14 AM
spaeth's Avatar
spaeth
Status: Offline
Craig Spaeth
93 RRC LWB 300TDI
Member
 
Join Date: Sep 2011
Location: White Salmon, WA USA
Posts: 93
I guess that was a critical comma to leave out. Thanks for the clarification though.
Reply With Quote
  #4  
Old October 17th, 2016, 12:20 AM
D90Overkill's Avatar
D90Overkill
Status: Offline
David Frank
1995 ST #2615
Member
 
Join Date: Jan 2008
Location: Napa, CA. United States
Posts: 3,994
Registry
Quote:
Originally Posted by spaeth View Post
I guess that was a critical comma to leave out. Thanks for the clarification though.
"I'm starving. Let's eat grandma."

"I'm starving. Let's eat, grandma."

See. Proper punctuation saves lives!

But back on topic; does it chirp and feel like it's locked backing up?
Reply With Quote
  #5  
Old October 17th, 2016, 12:43 AM
LuisC's Avatar
LuisC
Status: Offline
Luis Constantin
98 Disvovery 1 LE
Member
 
Join Date: Dec 2012
Location: Austin,Texas USA
Posts: 1,744
Registry
Quote:
Originally Posted by D90Overkill View Post
"I'm starving. Let's eat grandma." "I'm starving. Let's eat, grandma." See. Proper punctuation saves lives! But back on topic; do you feel like it's locked backing up?
Omg. I'm laughing so hard I'm crying.
__________________
Black Rhino Lives Matter
Reply With Quote
  #6  
Old October 17th, 2016, 12:47 AM
D90Overkill's Avatar
D90Overkill
Status: Offline
David Frank
1995 ST #2615
Member
 
Join Date: Jan 2008
Location: Napa, CA. United States
Posts: 3,994
Registry
Hehe! ;-)
Reply With Quote
  #7  
Old October 17th, 2016, 04:57 AM
rovertek's Avatar
rovertek
Status: Offline
chris
D130, 2001+99 p38
Member
 
Join Date: Jul 2012
Location: Long Island , New York
Posts: 470
What fluid are you running in the diffs ? Tru tracks do not do well with synthetic and cause chattering and binding

Sent from my SM-G920P using Tapatalk
__________________
No Mall crawler here
Reply With Quote
  #8  
Old October 17th, 2016, 09:11 AM
spaeth's Avatar
spaeth
Status: Offline
Craig Spaeth
93 RRC LWB 300TDI
Member
 
Join Date: Sep 2011
Location: White Salmon, WA USA
Posts: 93
It does feel like it is trying to lock up. Not quite chirping but getting close to that. Running a 90 weight gear oil. I did have synthetic in there for a short time but that was over a year ago and the. I read about the limited slip diffs preferring regular gear oil.
Reply With Quote
  #9  
Old October 17th, 2016, 10:25 AM
rovertek's Avatar
rovertek
Status: Offline
chris
D130, 2001+99 p38
Member
 
Join Date: Jul 2012
Location: Long Island , New York
Posts: 470
It does it all the time or just after wheeling it ?
Every once in a while my t box gets wound up and takes a few times to release

Sent from my SM-G920P using Tapatalk
__________________
No Mall crawler here
Reply With Quote
  #10  
Old October 17th, 2016, 11:10 AM
Rocky's Avatar
Rocky
Status: Online
Chris
72 + D1 drivetrain
Member
 
Join Date: Sep 2006
Location: Colonies
Posts: 7,765
Does the steering have higher resistance to movement when this happens?
What happens if you shift the Transmission into neutral, allow the car to roll a a reasonable unlocking distance then engage R again? Does this notchiness return?
Reply With Quote
  #11  
Old October 17th, 2016, 12:11 PM
GuamPilot's Avatar
GuamPilot
Status: Offline
Mike & Carrie Wendt
1986 90 2.5NA
Member
 
Join Date: Mar 2013
Location: Guam & San Bruno
Posts: 464
Registry
Quote:
Originally Posted by LuisC View Post
Originally Posted by D90Overkill View Post
"I'm starving. Let's eat grandma." "I'm starving. Let's eat, grandma." See. Proper punctuation saves lives!

Omg. I'm laughing so hard I'm crying.
Grandma Donner?

Mike & Carrie
__________________
Defenders draw attention. Don't buy one if you're shy!
Reply With Quote
  #12  
Old October 17th, 2016, 12:15 PM
sonoronos's Avatar
sonoronos
Status: Offline
Ed
None
Member
 
Join Date: May 2010
Location: Arlington, VA
Posts: 4,707
Quote:
Originally Posted by spaeth View Post
Thanks in advance for any ideas.
I personally would start by removing the front driveshaft and seeing if the feeling goes away in reverse

Just a suggestion
Reply With Quote
  #13  
Old October 17th, 2016, 12:40 PM
spaeth's Avatar
spaeth
Status: Offline
Craig Spaeth
93 RRC LWB 300TDI
Member
 
Join Date: Sep 2011
Location: White Salmon, WA USA
Posts: 93
Does every time in reverse. No difference in steering feel. No feeling going forward, feels completely normal forward. It does seem to catch more some times than others but you can always feel it a little bit.

I will try pulling the front shaft and see what that does. Was hoping maybe someone would have a quick answer here, but that isn't too tough to tackle.

thanks
Reply With Quote
  #14  
Old October 18th, 2016, 01:34 PM
Red90's Avatar
Red90
Status: Offline
John B.
1991 Defender 90, 200TDI
Site Team
 
Join Date: Sep 2003
Location: Calgary
Posts: 8,066
Registry
I would suspect that the TrueTrac is damaged. When you drive the "side gears" either thrust inwards or outwards quite strongly. They are assembled in a way that in forward the thrust is inwards and in reverse the thrust outwards. Unfortunately, in order to same two dollars in the manufacturing, they use a thrust bearing only in the center. On the outside the side gears thrust steel on steel. I suspect there is damage to the outer thrust faces and it is causing the "pinion gear" to lock up and prevent differential action or, at least, making it notchy. When you go forward the thrust is into a proper thrust bearing and there is not problem.

You will need to pull drive flanges to see which axle and then pull that diff out.
__________________
Pissing people off on the "net" since 1983.

Land Rover. Turning owners into mechanics since 1948.
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Thread Tools

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lashcap issues/valve cap issues trybul Defender Technical Discussions 6 January 9th, 2012 12:46 PM
Weird burning smell in 5th gear? oldscratchggf Defender Technical Discussions 7 February 14th, 2006 09:09 AM
Some weird noise spencer08291985 Defender Technical Discussions 2 February 28th, 2005 03:58 PM
weird noise with higher rpm scubadanster Defender Technical Discussions 8 December 13th, 2004 07:32 PM
Weird sound at idle... OCD90 Defender Technical Discussions 1 November 10th, 2003 02:56 PM


All times are GMT -5. The time now is 03:01 AM.


Copyright