Binding Brake - Common?

[SilverIce]

Hi

I'm new here (on behalf of my farther who ones the IS200)

He has a binding brake on the F/N/S. He felt that at junctions/pulling off it was a bit resultant, and then felt it was running a lot hotter than the O/S.

I found a few posts on the search and it seems to be a bit of an unknown - on how to cure it.

At the weekend we stripped down that brake, cleaned it all up (the pistons seemed v.hard to get back) and instantly it improved. About 50 miles later it is running hotter - but not as hot.

I'm not new to this problem myself I had it on one of my old cars (a Peugeot 306-Gti6). The problem in the end was the master cylinder not releasing on that brake, but that wasn't found until after a new brake caliper, which in turn was again knackered from it running hot and melting the seals.

I have read on here that others that have had this problem have had Lexus fit a new caliper but with no success (and a lot of cost)

Can anyone add to this, or point out something else it might be - I wondered if there is some bits/dirt in the fluid (it was changed back in the summer at lexus)?

Thanks in advance.

Kevin.

[sparkystav]

I had the same problem on my car mate, i just replaced the caliper with another one off eBay and it worked fine.

A lot easier than trying to clean up a knackered one.

Stav

[SilverIce]

I had the same problem on my car mate, i just replaced the caliper with another one off Ebay and it worked fine.

A lot easier than trying to clean up a knackered one.

Stav

Out of interest, was it a new Lexus/toyota branded part?

[sparkystav]

No it was a second hand part off a scrapper but worked a treat and absolutley no problems with it.

Replaced them now for supra calipers though.

Stav

[Rob]

u can get a caliper rebuid kit from lexus/toyota - and use a bit of silicone grease on the pistons and it should be ok

[SilverIce]

u can get a caliper rebuid kit from lexus/toyota - and use a bit of silicone grease on the pistons and it should be ok

I would assume this would be something they offer the customer, but prob not because the labour would be more than the new caliper. Something worth considering.

What do these kits contain, is it replacement seals mainly or more?

plus is this something that's easy for DIY (i've never taken a caliper apart)

that is of course if it is the caliper at fault....

[Rob]

rebuild kits contain all seals and norm new pistons- ask them whats in it

[rig-pig]

u can get a caliper rebuid kit from lexus/toyota - and use a bit of silicone grease on the pistons and it should be ok

I would assume this would be something they offer the customer, but prob not because the labour would be more than the new caliper. Something worth considering.

What do these kits contain, is it replacement seals mainly or more?

plus is this something that's easy for DIY (i've never taken a caliper apart)

that is of course if it is the caliper at fault....

as for DIY this is not a hard job but i would say you would have to be compitant as MUST be 100% correct and is very easy to nick/twist the seals

[SilverIce]

u can get a caliper rebuid kit from lexus/toyota - and use a bit of silicone grease on the pistons and it should be ok

I would assume this would be something they offer the customer, but prob not because the labour would be more than the new caliper. Something worth considering.

What do these kits contain, is it replacement seals mainly or more?

plus is this something that's easy for DIY (i've never taken a caliper apart)

that is of course if it is the caliper at fault....

as for DIY this is not a hard job but i would say you would have to be compitant as MUST be 100% correct and is very easy to nick/twist the seals

Thanks. I do most thing on my cars (I've got a 328Ci, sorry its not a lexus!) The only real question would be removing the pistons - i assume they have an 'o ring' or similar seal?

Edit: I have had a look online and this seems the case - the most read tip is to use low air pressure to blow the pistons out. The hardest bit is the reassembly from what i read.

[kev dood]

PM me an email address and I can send you the breakdown of the caliper and disassembly instructions if you like.

[SilverIce]

Thanks to kev will probably strip down caliper fully soon.

Unfortunately the problem still exists - Dad has taken the pads out several times and proved it is the top piston that is stiffer than the other one. After a few months it comes back and runs hot again, with freeing off it makes it fine again....

Need to prove weather it is the piston it's self or if it has run too hot in past a make the caliper warp?