RichardIStone

RichardIStone

Member
I have a 300Tdi shod in fairly new 205/16 all terrain tyres otherwise pretty standard other than snorkel and steering guard. Having had a great day laning around West Norfolk on my drive home I noticed a single knock every time I applied the foot brake. Now back home, I'm getting a feeling like the brakes are binding when I reverse. The Disco has had quite a bit of use recently but the laning trip was the first time I've applied the diff-lock for a while – it did appear to go in and come out OK, certainly as far as the warning light suggested. Any thoughts please on where I should start my investigations? First thoughts were brakes but I wonder if it could be the transfer box? Thanks in advance.
 
Jack the back axel up and spin the wheels backwards and it will give you an idea. It should have the same resistance spinning forward and back.
 
RichardIStone said:
First thoughts were brakes but I wonder if it could be the transfer box?
Click to expand...
If in fact it is the transfer case diff lock stuck on then the vehicle would tend to be binding in both forward and reverse, if you jack one front wheel off the ground and can turn it a turn in either direction that will indicate that your diff lock has disengaged ok.
To check for brake binding just jack one axle, both wheels, off the ground each should rotate reasonably freely, allowing for some transmission/handbrake resistance.
The knocking sound with brakes applied could be one or more of the trailing arm bushing or panhard rod bushing bolts a little loose and allowing the diff housing to move back and forth within the steel bushing that is moulded into the centres of the rubbers, I have experienced this in my D1 after a bit of enthusiastic 4 WDing in wet and muddy conditions, the securing bolts need to be very tight to sandwich the rubber bushing assemblies.
 
Hmmm, these caliper bolts have a head that's new to me. I think the name is 12 point? My good old Halfords sockets have twelve points, are these suitable or do I need a special set of sockets for this type of bolt? Part number is FTC3375
FTC3375.jpg
 
If you go to Machine Mart they sell a set of sockets which will work on your calliper bolts and torx, spline and hex head bolts, even partly rounded hex bolts, they are quite cheap too only about £12 if I remember correctly for a rail.
Kev
 
Last edited:
You must log in or register to reply here.

Similar threads

W
Hello again, my TD5 90 brakes are poor you can stand on the pedal and coming to a stop takes time, although they are good enough for the MOT need help
2
Replies
20
Views
2K
Anaconda
A
manuidat50
Disco 2 autobox loss of reverse drive.
Replies
3
Views
951
discool
discool
Vagabondrobb
Disco 2 3 amigos with horn
Replies
13
Views
766
Vagabondrobb
Vagabondrobb
R
Discovery 4 TDV6 - shuddering engine, no acceleration/won’t rev
Replies
7
Views
1K
tyregeezer
tyregeezer
S
Defender 90 TD5 Low miles
Replies
17
Views
2K
steveyorks
S