The 'E' Type Forum

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

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

Geoff

Joe i think S2 front are 2.125 large and 1.5 small...but thats from memory without checking.....Steve

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?

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