Technical stuff > Brakes
Front Driver’s Side Brake Caliper Locking Up Randomly
peteracs:
Hi
You say it jams on even on short drives, but whennit cools down returns to normal. As Guy has suggested I seem to remember hearing this happening on a non Beta and it was the brake booster adjustment, but why only one side is a mystery.
If slackening off the booster rod does nothing, I would be tempted to get to the point where it is on, then crack the bleed nipple on that caliper starting with the one which only goes to the front ones and then do the same on the other caliper and see if that removes the sticking on caliper. You may find the other caliper does not actually work on the front only circuit, so two problems not one......
If that does not release the caliper then release the full circuit bleed nipples to confirm which circuit is staying on. Wonder if not the rod then is it the m/c somehow?
Hope you can make sense of my ramblings, as you say a very odd situation.
Peter
SanRemo78:
--- Quote from: HFStuart on March 29, 2025, 07:46:07 PM ---Something odd about those sliders. Are they cracked?
--- End quote ---
I've seen two types of slider, one with a hole at each end for a retaining clip and the other with only one hole and the other end of the slider guillotined to create a bent tab to stop it sliding out. Could the wrong ones have been used and the wedge is jamming the calliper and stopping it moving? Unlikely.
HFStuart:
That certainly explains why I thought the slider looked odd - usually the cotter pins are on the outside and there's a few mm of slide spare between the caliper and the cotter pin. I very much doubt this is the issue but it's worth swapping them round
George-S:
Hi All,
Thanks for the replies.
I shall give slacking off the master cylinder a shot and also squiglyzigly has pm regarding the vacuum hose, I am currently using a none reinforced hose which could be potentially be collapsing under load.
Something I wasn't aware of so I shall swap that out to.
peteracs:
Hi
Cannot see the vacuum hose being an issue, also mentioned re the sliders being handed. My car has a mix of the small spring retainers on both inner and outer off-the-peg caliper without any issues.
Peter
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version