4 pot calipers ?

4 pot calipers ?

Author
Discussion

TVRBessy

35 posts

119 months

Wednesday 9th July 2014
quotequote all
well, I went for the brackets and discs from Hans as I already had the AP callipers from ebay and the discs are currently being re-drilled to Spider PCD at the machine shop.

does anyone know if I will be able to use the existing calliper bolt to fit the new bracket to the car, or will I require a longer bolt?

.... I already have the bolts to attach the APs to the brackets, so that part is no problem.



It may help someone to know that I ordered mtech discs for the rears and they re-drilled them for me (before dispatch) for £25 and they arrived to my door with the correct Spider PCD.

hififreak

20 posts

117 months

Thursday 10th July 2014
quotequote all
Hi!
i have bought this fantastic conversion kit from WMS !

can see it here -> http://rt-fidelity.at/uploads/pics/DSC_01705.jpg


283x24mm discs and EBC Yellow Stuff works good together

TVRBessy

35 posts

119 months

Tuesday 22nd July 2014
quotequote all
... another opportunity to add something back to the forum.

So (as they commonly are) the AP bleed nipples were ceased and I sheared one, then I made a right mess drilling it out.

I took the calliper to a local engineering shop who had to drill the thread out to a M12 x 1 thread so that I could fit a M12 nipple (from eBay).

The next issue was that the nipple would not go home and it was approx. 3mm out (due to the bored/ counter-sunk nature) of the hole for the original M10 nipple. In the end the engineering firm milled off about 3mm from the top of the calliper shaft - thus reducing the distance required (no. of threads) before the nipple screwed home. Obviously if you can get a longer bleed nipple (mine was 31.4mm) then this will reduce the need to mill the calliper.

Finally the nipple did weep a little, so I had to lap it in (1/4 turn tight 1/8 turn back - repeated about 10 times and got about another 1/2 turn out of it) - now seals a treat.

portzi

2,296 posts

174 months

Tuesday 22nd July 2014
quotequote all
TVRBessy said:
... another opportunity to add something back to the forum.

So (as they commonly are) the AP bleed nipples were ceased and I sheared one, then I made a right mess drilling it out.

I took the calliper to a local engineering shop who had to drill the thread out to a M12 x 1 thread so that I could fit a M12 nipple (from eBay).

The next issue was that the nipple would not go home and it was approx. 3mm out (due to the bored/ counter-sunk nature) of the hole for the original M10 nipple. In the end the engineering firm milled off about 3mm from the top of the calliper shaft - thus reducing the distance required (no. of threads) before the nipple screwed home. Obviously if you can get a longer bleed nipple (mine was 31.4mm) then this will reduce the need to mill the calliper.

Finally the nipple did weep a little, so I had to lap it in (1/4 turn tight 1/8 turn back - repeated about 10 times and got about another 1/2 turn out of it) - now seals a treat.
Arnt these ment to be new AP calipers, with the set. ? they should not seize, as this brand is top quality, which is unlike to TVR to use on their carssmile

Mark

TVRBessy

35 posts

119 months

Saturday 21st May 2016
quotequote all
I got the callipers from eBay and discs and brackets from hans. Callipers were few years old hence nipples ceased.