S1 Front Caliper
S1 Front Caliper
Author
Discussion

Julesprivate

Original Poster:

871 posts

172 months

Wednesday 20th June 2012
quotequote all
Any thoughts on whether this looks like the right one for the drivers front caliper of an S1:

https://dl.dropbox.com/u/34793944/Caliper.jpg

It's from a Sierra diesel

They're only £27 and mine have started sticking...

greymrj

3,329 posts

233 months

Wednesday 20th June 2012
quotequote all
Very probably correct as there were few changes in Sierra disc set ups. Piston diameter is correct. The original calipers were Lucas BCW186E (nearside) and BCW187E (offside). I suggest you email the seller to confirm these are equivalent to those Lucas numbers (if he knows his stuff he will have that information readily to hand). If, for some strange reason, he doesnt know I can check out his published part number tomorrow.

Julesprivate

Original Poster:

871 posts

172 months

Wednesday 20th June 2012
quotequote all
Cool - I'll mail them. In the meantime I came across this link, now I'm pretty sure my S1 shares common brake components with that Griffith so that's a pretty compelling argument to treat myself to a pair.

Can't really go wrong at that price.

Link: http://www.brakepartssuperstore.org.uk/contents/en...


greymrj

3,329 posts

233 months

Wednesday 20th June 2012
quotequote all
Please let me know if the part numbers do match the old Lucas numbers so we can add that info to the Alternative Parts List. Incidentally according to my mate in the Car Component business ATE are OK. Interesting to see that the website you provided as a link lists the springs etc separately. These parts are often difficult to source. clap

Ragtop

592 posts

230 months

Thursday 21st June 2012
quotequote all
According to my TRW (Lucas) brake catalogue, there were only two types of front caliper ever fitted to the Sierra (all models), one with 54mm diameter pistons and one with 60mm diamter pistons. I believe the S uses the smaller caliper as standard. Both were Teves as original equipment (a division of ATE) - the rear calipers only were Lucas OE. The TRW part numbers are BCW186/7 E.

HTH
Graham

v8s4me

7,275 posts

248 months

Thursday 21st June 2012
quotequote all
Assuming S1 hubs are the same as later one's - maybe time for an easy upgrade?

http://www.ebay.co.uk/itm/SIERRA-XR4i-RWD-FRONT-BR...

Don't know about "rare and sought after" - the last pair in that state went for £16.50!

Or better still

http://www.ebay.co.uk/itm/XR-4i-2-8-calipers-full-...

Russell Mc

573 posts

180 months

Thursday 21st June 2012
quotequote all
I've got some calipers going if you're interested? Discs and pads too.

glenrobbo

40,485 posts

179 months

Friday 22nd June 2012
quotequote all
Just a thought & I don't know if it's relevent to S's, but my daughter had a problem with a sticking caliper on her old Escort. It turned out to be a collapsed (internally) flexi brake hose which allowed pressure to the caliper but wouldn't let fluid return when the brake pedal was released.

Worth bearing in mind.
HTH,
Glen

Gerald-TVR

4,896 posts

226 months

Friday 22nd June 2012
quotequote all
These Guys are alsolutly first rate http://www.biggred.co.uk/index.php

Julesprivate

Original Poster:

871 posts

172 months

Friday 22nd June 2012
quotequote all
Thanks for the help & offers guys, I went ahead and ordered those calipers from my first link and they arrived today. I haven't had a reply back from the seller to confirm they are a direct replacement but they certainly look right!

As it happens the brakes are working perfectly again now, no sticking, no pulling just lovely clean braking in a straight line...

Still going to fit the new ones though smile

Top Gear TVR

2,251 posts

183 months

Saturday 23rd June 2012
quotequote all
its exactly what i am doing....... with pics snd everything. I also found original (?) caliper carrier retaining bolts have very small heads, ended up using a 21/32 socket instead of 17mm - sand even that was slightly loose. Pigs to get carriers off a the hose gets in the way. any way - story so far here

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Julesprivate

Original Poster:

871 posts

172 months

Monday 16th July 2012
quotequote all
Just to confirm - those calipers are the right ones for the S series as a std replacement and at £27 they are a bargain. I had a garage fi them whilst i was on holiday and for a pair of new calipers and pads the bill was under £100 so I am very pleased.

If there's a way to get them added to the "alternative parts list" I'd recommend it..