Grinding noise

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sergeantcookie

sergeantcookie

Active Member
Posts
405
Location
Nantwich, Cheshire
This is hopefully a stupid question. I finally put my second swivel ball back together today after the car has been on axle stands for almost 2 weeks. All went well, she even started right on the key. I also bled the brakes.

After everything was done I reversed out the drive and drove up the road and there was a grinding noise coming from the wheel I just changed the ball on. However it disappeared when I applied the brakes. Now, as it has been off the road for a few weeks, obviously a bit of rust will have appeared on the disk and one of the pads did fall out when I removed the caliper.

So the question is, is the grinding noise likely to be the pad grinding on the disc or something else?

Im just a bit paranoid now that I've messed up somewhere in the reassembly process.
 
Could be .. If the pad fell out, did you at least check it for width? The pad braking material is about 10mm, maybe more, deep on a new one.

If one pad fell out, check the other side too .. replace all the pads as an axle set. Not trying to be cheeky, but while you have all the pads out, clean the discs too, a quick spray of brake cleaner and wipe with a clean rag .. pad contamination can be disconcerting at best ..
 
To be honest I just put it back in. The same happened on the other wheel but that has been no bother and all works fine. Think what I will do is jack the front end up tomorrow and spin the wheels and see of there is any grinding.
 
Please, check the pad material size too ..

This is the sort of size they ought to be ..

DSCF0005_zps5c607b3d.jpg
 
Looking at yours, they are different to mine. I have no springs on the metal rods and I am sure the rods dont go through the pads either. Well they definitely dont go through one of them hence why they fell out lol.
 
earlier pads where secured by long split pins pushing down on clips later use pins as in pic (spring been fitted doesnt really matter)ive seen quite a few earlier pads fitted in later solid pin caliper allowing edge of pad to rub on disc
 
Well, that's a front Disco caliper. The rears have split pins with bent metal plate springs to hold pads in .. I posted it to show the relative width of pad to disc really .. ;)

I wonder if you, or someone, has fitted the wrong pads to each end! Actually I'm not sure you can, properly ..
 
Check all yer hub nuts are ok Sgt, and the retaining washers are bent over,
Grease put in?:scratching_chin::scratching_chin:
 
There are many more people in the knowledge than I but just off the top of my head as a mere suggestion; as previously suggested, check pads first. Maybe one didn't sit properly when you put it back in? Also, did you use the correct torque settings for the adjustment and locking nut? Too tight and there would be no float resulting in something nasty soon enough.
 
Which one is the adjustment nut? If you are on about the hub nuts I tighten them up then slacken them off a touch. Im hoping its just the pad as it doesnt happen when I hit the brakes.
 
ezude7ut.jpg


Theres what mine look like. Anyway I think I have found the culprit for the noise...

8yga9y2u.jpg


Looks like the guard was rubbing up against the disk. Bent it out the way as best as I could, put it all back together then promptly reversed out of my drive and straight in to my wheelie bin (its bin day) knocking all the contents all over the road :eek:. I thought it was some bits falling off :p. Took it for a quick spin and no grinding noise (for now) :cool:
 
:D I'm sure someone would have eventually suggest checking the guards but everything else under the sun would have been suggested first. I've taken/cut all mine off. Seems to be a popular solution.
 
That caliper has a front and rear pad in it, no wonder it fell out! Get them changed to correct ones before driving again .. what happens if you hit a pothole and it bounces out?

I'd take the wheels off, check all the pads on the car, and the brake fluid, and either make sure they're matched and fitted correctly, or simply buy a complete set ... In fact I'd replace the brake fluid completely, don't just top it up .. god knows what other bodges someone's done to it.

When was it last MOT'd? Though mismatched pads might not be picked up 'cos they're still likely to work wrt braking power ..vprovided they haven't jumped out.
 
And the guard .. take 'em all off, they only cause hassle, especially if you go green laning or offroading.
 
I replaced all the brake fluid yesterday. It was mot'd in october though the tester must have been blind. Is it ok just to change the pads as the disks are ok? The other side is the same.
 
The other thing I would suggest is getting a torque wrench and setting up those nuts properly. First nut (adjusting nut) tighten to 61nm, back of 90° then tighten 4nm. Fit lock washer then tighten second nut (locknut) to 61 then bend tabs. Having the correct float will greatly increase the life of your componants.
 
If the disc is fine then yeah, just fit new, correct, pads .. ;)

You can't say the MOT tester was blind, he has no need to check proper fitment of parts if they work correctly to the book. I'd suggest more likely that you're blind, and daft, for not doing more regular maintenance and for not doing anything about checking them between October and now, or whenever you got the vehicle!
 
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