How do you tell when to change D-shafts and u joints
Thread Starter
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Mudding
Joined: Sep 2009
Posts: 120
Likes: 0
From: Brantford ont Canada
How do you tell when to change D-shafts and u joints
so i've had my disco for almost a year. I love every minute with it.
recently as i was driving (low speed 20-60 kph)
I could hear a rotational noise. almost like a clicking or wearing sound.
how do i tell if its a d-shaft or a u joint?
the funny thing is, the noise will go away when i apply the brakes.
the brakes are new all round.
so how do i dianose it?
also, I feel alittle emabrassed asking....but I havent had a chance to off-road it yet ( I will going next month) so I have yet to put the truck into low range. thru the winter 4H has been fine.
the shifter seems alittle confusing, its in the bottom right 4H position. 4L is a straight shot up. but in the left hand side of the shifter it says diff lock. is this another shifting option?
thanks in advance guys
recently as i was driving (low speed 20-60 kph)
I could hear a rotational noise. almost like a clicking or wearing sound.
how do i tell if its a d-shaft or a u joint?
the funny thing is, the noise will go away when i apply the brakes.
the brakes are new all round.
so how do i dianose it?
also, I feel alittle emabrassed asking....but I havent had a chance to off-road it yet ( I will going next month) so I have yet to put the truck into low range. thru the winter 4H has been fine.
the shifter seems alittle confusing, its in the bottom right 4H position. 4L is a straight shot up. but in the left hand side of the shifter it says diff lock. is this another shifting option?
thanks in advance guys
Winching
Joined: Jul 2006
Posts: 739
Likes: 5
From: west of chicago
If it were me, I'd put it up on jackstands, put it in neutral and grab the driveshafts, twisting them back & forth.
I'm trying to feel for play in the ujoints.
as you turn them pay close attn. are they squeeking? feel dry? any play?
lastly, grease them thru the grease fitting that you hope they have (better ones do)
put in a shot, turn several times, put in another, etc. until the grease just starts to appear around all four of the grease seals. (do not push too much out, as the seal may dislodge).
then repeat all the turning stuff above.
If you hear any squeeks, clicks, or feel any play, replace them.
the shifter will freeze up if not excercised & lubed (common problem)
I suggest downloading the free "rave cd" --- that's the shop manual on line - it's good
In some cases, the brakes can cause clicking & scraping - common when they're shot.
luck,greg
I'm trying to feel for play in the ujoints.
as you turn them pay close attn. are they squeeking? feel dry? any play?
lastly, grease them thru the grease fitting that you hope they have (better ones do)
put in a shot, turn several times, put in another, etc. until the grease just starts to appear around all four of the grease seals. (do not push too much out, as the seal may dislodge).
then repeat all the turning stuff above.
If you hear any squeeks, clicks, or feel any play, replace them.
the shifter will freeze up if not excercised & lubed (common problem)
I suggest downloading the free "rave cd" --- that's the shop manual on line - it's good
In some cases, the brakes can cause clicking & scraping - common when they're shot.
luck,greg
Recovery Vehicle
Joined: Mar 2008
Posts: 755
Likes: 2
From: Sevierville TN
so i've had my disco for almost a year. I love every minute with it.
recently as i was driving (low speed 20-60 kph)
I could hear a rotational noise. almost like a clicking or wearing sound.
how do i tell if its a d-shaft or a u joint?
the funny thing is, the noise will go away when i apply the brakes.
the brakes are new all round.
so how do i dianose it?
also, I feel alittle emabrassed asking....but I havent had a chance to off-road it yet ( I will going next month) so I have yet to put the truck into low range. thru the winter 4H has been fine.
the shifter seems alittle confusing, its in the bottom right 4H position. 4L is a straight shot up. but in the left hand side of the shifter it says diff lock. is this another shifting option?
thanks in advance guys
recently as i was driving (low speed 20-60 kph)
I could hear a rotational noise. almost like a clicking or wearing sound.
how do i tell if its a d-shaft or a u joint?
the funny thing is, the noise will go away when i apply the brakes.
the brakes are new all round.
so how do i dianose it?
also, I feel alittle emabrassed asking....but I havent had a chance to off-road it yet ( I will going next month) so I have yet to put the truck into low range. thru the winter 4H has been fine.
the shifter seems alittle confusing, its in the bottom right 4H position. 4L is a straight shot up. but in the left hand side of the shifter it says diff lock. is this another shifting option?
thanks in advance guys
You need to check and make sure your driveshaft has the grease zerks on the ujoints and shaft. If it doesn't then you will need a new shaft ASAP. It sounds like yours may be on the way out or if it has already been swapped, it needs more grease. The differential lock, locks the axles and is used when the surface that you are driving on is slippery (mud, rocks, sand, etc). You engage it by putting the car in neutral and shifting the lever to the left. High left is high locked and low left is low locked. You do not want to use the CDL on dry pavement and you may need to reverse a little to get it to disengage when you are done using it. I hope this helps a little!
Thread Starter
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Mudding
Joined: Sep 2009
Posts: 120
Likes: 0
From: Brantford ont Canada
i dont have the slotted brakes, i wish i had gone with them....next time.
Im taking it to my buddies shop and we are going to raise it up and go through it front to back.
I'll report with my findings, thanks guys.
anyone want to shed some light on my low range shifter question?
Im taking it to my buddies shop and we are going to raise it up and go through it front to back.
I'll report with my findings, thanks guys.
anyone want to shed some light on my low range shifter question?
Recovery Vehicle
Joined: Mar 2008
Posts: 755
Likes: 2
From: Sevierville TN
Baja
Joined: Sep 2007
Posts: 5,232
Likes: 52
From: Georgia, USA
Usually propshaft noises don't go away when brakes are applied because they are loaded whether you're driving or slowing down.
If the noise goes away when you brake, but not when you just let off the accelerator, it's not likely the propshafts.
A seized u-joint will have no play, but is still bad and on it's way to failure. You can't really check your u-joints properly in situ, you have to disconnect at least one end to make sure they aren't binding in any direction.
Sorry, that's incorrect.
You need to pump grease in until you see new grease coming from around all 4 seals
That's an old wives tale. It's very unlikely that the seal will dislodge. And even it it does, you can just push it back in place with your finger. You could pump 5 tubes of grease in to a single u-joints without harm, aside to your wallet and garage floor.
Here's the info you need on greasing your u-joints.
https://landroverforums.com/forum/sh...ad.php?t=29302
If the noise goes away when you brake, but not when you just let off the accelerator, it's not likely the propshafts.
A seized u-joint will have no play, but is still bad and on it's way to failure. You can't really check your u-joints properly in situ, you have to disconnect at least one end to make sure they aren't binding in any direction.
put in a shot, turn several times, put in another, etc. until the grease just starts to appear around all four of the grease seals.
You need to pump grease in until you see new grease coming from around all 4 seals
(do not push too much out, as the seal may dislodge).
Here's the info you need on greasing your u-joints.
https://landroverforums.com/forum/sh...ad.php?t=29302
Thread Starter
|
Mudding
Joined: Sep 2009
Posts: 120
Likes: 0
From: Brantford ont Canada
You need to check and make sure your driveshaft has the grease zerks on the ujoints and shaft. If it doesn't then you will need a new shaft ASAP. It sounds like yours may be on the way out or if it has already been swapped, it needs more grease. The differential lock, locks the axles and is used when the surface that you are driving on is slippery (mud, rocks, sand, etc). You engage it by putting the car in neutral and shifting the lever to the left. High left is high locked and low left is low locked. You do not want to use the CDL on dry pavement and you may need to reverse a little to get it to disengage when you are done using it. I hope this helps a little!
sweet i'll be looking very closly when its up on the hoist, thanks for the help and info!!
Matt
Camel Trophy
Joined: Feb 2007
Posts: 4,959
Likes: 11
From: Tulsa, OK
You can move the shifter from 0 to 5 mph to the left and right, you don't have to be in N. To go from high to low, you do have to be in N. Try to stop on an incline, as when you try to shift from high to low, you may need to roll slightly.