Caliper pin bushes
Posted: Sat Dec 19, 2020 6:24 pm
Hello,
I've been running my 'freebee' 1.2 Polo for the best part of a month now ( see my previous thread for more details! )
Really pleased with the car, can't get over how little fuel it uses after my old Mercedes 190!
I have pretty much got through my list of jobs
The oil leak turned out to be a leaking oil filler cap seal!!! It had a big ridge worn into it where the cap pushes it onto the cam cover, I simply flipped it over, cleaned all the oil from down the side of the engine, I removed the alternator and cleaned it up and put it back on with a new drive belt. Not a sniff of oil now!!!
I replaced the split CV boot which turned out to be very simple too.
I've done an oil and filter change and checked all the brakes front and rear to search the source of the judder wnen braking which brings me to my question........
I initially thought the culprit would be a warped/out of true disk but I got my DTI on them on both sides and they are both perfect, this obviously got my head scratching. I then checked the hubs were true and sure enough they are fine, the wheels and tyres also are fine too. Can't find any loosness in any of the suspension either. I then decided to remove the calipers and that brings me to the slider pins and rubber bushes, the pins look perfect but I think the bushes are shot as the pins are loose in the bushes especially on the drivers side they literally waggle about! I'm pretty covinced these worn bushes must be the source of the issue.
I see the reuild kits are readily available, I have always used 'Bigg Red' in the past so I'll probably buy their kit.
My question is ....do worn pin bushes cause brake judder and how difficult is it to replace the bushes?
I've been running my 'freebee' 1.2 Polo for the best part of a month now ( see my previous thread for more details! )
Really pleased with the car, can't get over how little fuel it uses after my old Mercedes 190!
I have pretty much got through my list of jobs
The oil leak turned out to be a leaking oil filler cap seal!!! It had a big ridge worn into it where the cap pushes it onto the cam cover, I simply flipped it over, cleaned all the oil from down the side of the engine, I removed the alternator and cleaned it up and put it back on with a new drive belt. Not a sniff of oil now!!!
I replaced the split CV boot which turned out to be very simple too.
I've done an oil and filter change and checked all the brakes front and rear to search the source of the judder wnen braking which brings me to my question........
I initially thought the culprit would be a warped/out of true disk but I got my DTI on them on both sides and they are both perfect, this obviously got my head scratching. I then checked the hubs were true and sure enough they are fine, the wheels and tyres also are fine too. Can't find any loosness in any of the suspension either. I then decided to remove the calipers and that brings me to the slider pins and rubber bushes, the pins look perfect but I think the bushes are shot as the pins are loose in the bushes especially on the drivers side they literally waggle about! I'm pretty covinced these worn bushes must be the source of the issue.
I see the reuild kits are readily available, I have always used 'Bigg Red' in the past so I'll probably buy their kit.
My question is ....do worn pin bushes cause brake judder and how difficult is it to replace the bushes?