Front brake calipers

Technical advice Q&A

Topic author
Joes66
Posts: 315
Joined: Sun Apr 26, 2020 7:16 am
Great Britain

#1 Front brake calipers

Post by Joes66 » Fri Jul 24, 2020 1:50 pm

Just started to re build my front brake calipers with kits and the kits are too big
Even though the flee bay advert says they are for my car
What size pistons should i have?
Many thanks
Joe
1969 series 2 2+2

Link:
BBcode:
HTML:
Hide post links
Show post links


Gfhug
Posts: 3289
Joined: Thu Jun 19, 2014 3:08 pm
Location: Near Andover, Hampshire,in D.O. Blighty
Great Britain

#2 Re: Front brake calipers

Post by Gfhug » Fri Jul 24, 2020 7:40 pm

Fleabay? :wow:
Unless it’s a recognised supplier go direct to the better ones

Geoff
S2 FHC Light Blue
S2 OTS LHD - RHD full restoration

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

mgcjag
Moderator
Posts: 8070
Joined: Fri Jul 09, 2010 6:15 pm
Location: Ludlow Shropshire
Great Britain

#3 Re: Front brake calipers

Post by mgcjag » Fri Jul 24, 2020 7:50 pm

Joe i think S2 front are 2.125 large and 1.5 small...but thats from memory without checking.....Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

Link:
BBcode:
HTML:
Hide post links
Show post links


mldwyer
Posts: 15
Joined: Sat Jul 06, 2019 7:27 pm
United States of America

#4 Re: Front brake calipers

Post by mldwyer » Sun Jul 10, 2022 10:38 pm

So, today, I disassembled my front brake calipers (One of the casting # E64326816 left side.) 1970 E-Type Series 2. The new pistons in the rebuild kit from a major supplier matches the part # from several other suppliers. #64325434 SS the small outboard pistons. They measure 1.500 inch. The large inboard piston measures 2.1225 inch.
The issue is: Small bore in caliper is 1.595 - 1.600; and large bore is 2.252 inch. The seals in the kit match the small pistons, not my calipers. I am assuming, someone before me installed the calipers with larger pistons. Could they be from a Series 3? Maybe an XJ6?
Image

Link:
BBcode:
HTML:
Hide post links
Show post links

User avatar

mgcjag
Moderator
Posts: 8070
Joined: Fri Jul 09, 2010 6:15 pm
Location: Ludlow Shropshire
Great Britain

#5 Re: Front brake calipers

Post by mgcjag » Mon Jul 11, 2022 7:33 am

Have a look here...click on the pistons for measurements....but yes sound like larger xj6 calipers ....however volvo calipers were a common caliper upgrade on some E types. .....Steve https://www.moss-europe.co.uk/brake-cal ... 50958.html
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

Link:
BBcode:
HTML:
Hide post links
Show post links

Post Reply Previous topicNext topic