knocking when brakeing ??? transfer gearbog bearing ?? disco 200tdi

[stretchy]

alrite guys got a rite mind puzzler... my brakes make a knocking noise when breaking, it sounds more or less like if you had no bushes in your hocky stick/radius arm when breaking.

I have been under there a few times today and cant fined anything. thers new pollybushes in the hocky sticks, shoks a springs are tight theres no play in the track rod ends or drop arm the front prop shaft is a recon one with only one new uj but the other one seems sweet and the wheel bearing is new.

I have however discoverd that my transfer box flange where you atach the front prop is a bit rocky. if you turn the prop you can here knocking in the transfer box and you can move it side to side just a little. is it fubar? Is there anything els I can try ?

given this the disco is runing realy well and moves through the gears and low box with no truble at all witch is why im so puzled

any ideas??

thanks guys

stretchy

[Range Rover Blues]

Rotational backlash in the transmission is not just expected it is neccesary, don't worry about a small amount.
If you can just feel a bit of sideways play don't worry about that either.

Check the brake pads are secure and not loose or tight.

Check you wheel bearing now that you've driven a few miles too, also check for anything fouling the brake callipers if the bearings have been disturbed

[stretchy]

thanks mate. I cheked the caliper today while someone was presing brake a few times it seemed ok gave the bearing nut another half turn no jpy.  not checked the pads or pistons yet thow  8-[

thanks

stretch

[stretchy]

just say if there was to much play in the transfer box is there a bearing I can change to sort it out??.

also if the brake pistons are jaming or something is it safe to wd40 them to free them up a bit ??

[Range Rover Blues]

If pistons are jammed then the outer seal has failed and the piston has rusted through the chrome surface, WD40 won't really help.

You can change to output shaft bearings on the LT230 IIRC.

[clover]

I don't think its the brakes. I think its transmission related. The front wheel was making a noise when you drove forward and it sounded like it was coming from the drive-shaft. I think you have a sloppy differential. But it may be just a problem further along being transfered thought to the shafts.

I be more worried about the noise coming from inside the transfer box when you wiggled the prop-shaft as it was decidedly unhealthy. Also the transmission brake was red hot don't know if that is normal either.

I know a bit of slack in the drive train is normal but I think the noise its making sounds terminal. If it was the front bearing it would be leaking oil out the seal. Is that where the oil is coming from? It could have run dry of oil I suppose. Undo the bottom plug and see what comes out!

I'll lend you what EP90 I have but it might not be enough.

[clover]

We drained the T-box and got 2 pints of muddy colored gulp out of it. Not healthy I'd say but not burnt like I expected.

[stretchy]

spent mostly all day checking brakes,calipers, wheel bearings, ujs tbox, still couldnt fined anything. when I got home I dicided to take of the front prop just to make sure it was definitly  comeing from the front axle area and sure enuf it was still clonking. the only thing I could feel was a bit lose was the pan hard rod and as I had some bushes for this anyway I thort I may as well change them. The bolts was realy seized and couldent get one of them out even with a lump hammer so had to cut it aparantly the bolts thease size are realy hard to come by so try and keep them in tact If you can help it. I had to go to 4 garages to get one but atleast it was free :) presed in the new bushes and evrything was fine. put my new recon front prop on to and renewed the t box oil and all seems fine now. I will see how it goes.

big thanks for your help guys

sory about the oil spill on the drive smurf


big thanks

stretchy

[clover]

At least this time it was not all over you! ROFL!