Knocking when braking

[R1cho]

I'm getting a knocking/banging sound but only when braking, at first i thought it was coming from the rear but after listening properly when driving it sounds like its from the front, any ideas?

 

[R1cho]

<iframe width="560" height="315" src="//www.youtube.com/embed/fFy0AP6HjW0" frameborder="0" allowfullscreen></iframe>

 

[solarman216]

Sorry but my hearing did not detect anything in your vid, do you have auto or fixed hubs? Rick

 

[R1cho]

Sorry but my hearing did not detect anything in your vid, do you have auto or fixed hubs? Rick

manual hubs, i think its the rear brake as have noticed the handbrake comes up further than it did

 

[solarman216]

best pull the rear drums off and have a look then mate, something could have come adrift, Rick

 

[R1cho]

ok i took the drums off and all was fine so then moved onto the fron of the truck, took off the front os wheel and found this

had me puzzled for a bit until i saw this

the bottom bolt of the brake carrier had fallen out causing the brake carrier to jump up and bank on the inside of the wheel whenever i braked

quick fumble through the man drawer and found a replacement bolt and now all fixed.

also today i got a new jack £25 from screwfix :cool2:

and it fits in the cubby where the old screw jack used to live

dunno if it will clatter or not but if it does i'll just turn the radio up lol

 

[jims-terrano]

That was lucky on both counts there mate. Like the way that jack sits in place of the old one.

 

[AlexD333]

dunno if it will clatter or not but if it does i'll just turn the radio up lol

Just stuff a sponge in there :thumb2

 

[Sweety]

You been lucky mate & I bet your glad you don't have bigger rims as the pads might have come out:doh

 

[solarman216]

Did it shear or come out, if it come out who last had these bolts out? Rick

 

[R1cho]

Did it shear or come out, if it come out who last had these bolts out? Rick

it had come out, the last person to have them out was myself when i did the slider bolts, i couldn't have tightened them up properly when put back together :doh , all rechecked and tightened up properly this time

 

[solarman216]

it had come out, the last person to have them out was myself when i did the slider bolts, i couldn't have tightened them up properly when put back together :doh , all rechecked and tightened up properly this time

I have been at it so long that I have built in torque wrench in my arms, but suggest if this has happened once then you need to use a T wrench in future, you and your families life may depend on it, regards Rick

 

[AlexD333]

Yah quite scary when you put it like that.

On the bright side you have a slightly cleaner caliper carrier now :lol

 

[don simon]

Must go and have a look at mine as I have an intermittent problem where it feels like I have a stone caught between pads and disc or shoe and drum. No noise, just a feeling through the pedal.

 

[Banshee]

Been there and done that mate

Just never been brave enough to admit it on the forum.

Get em tightened up right, I'll never make that mistake again and I presume you wont either

 

[rustic]

Been there and done that mate

Just never been brave enough to admit it on the forum.

Get em tightened up right, I'll never make that mistake again and I presume you wont either

When I replaced the Picasso ones last month, Mintex pads, advised to put threadlock on the two bolts.
Which I did. And used a torque wrench to the preffered torque.:thumb2

Tip:-
If you are going to undo any nuts and bolts on a vehicle, buy a torque wrench, cheap enough, you generally only ever to buy one.

 

[micktheshed]

Torque wrenches are all very well but they do need to be calibrated regularly to be of any use. Luckily this is quite easy to do (plenty of vids. on internet). However, DO make sure threads are clean & undamaged as this affects the reading quite a lot. The sparing use of thread locker fluid (as mentioned already) is def req on jobs like this, unless new ready-treated bolts are used.

Over tightening can be just as bad as under-tightening so don't be tempted thinking it's better to give it 'a bit more for luck', (doesn't apply to all types of screwing LOL).

 

[rustic]

Torque wrenches are all very well but they do need to be calibrated regularly to be of any use. Luckily this is quite easy to do (plenty of vids. on internet)...

With reference to calibration, be sure what you are calibrating it with, if you are using weights, how accurate are these.
If comparing against another torque wrench, which one is right, they might both be wrong.
You could also use a spring balance, again, if uncalibrated how can you be sure.

Calibration, only means producing a chart for different torques vs what the dial on the torque wrench actually shows.
You would need this chart or graph available to compare the settings when you use the torque wrench etc.

Ideally you would want it adjusting, but this then might only give you a few readings that are within a prescribed tolerance.