Getting really f*cked off now! Fitted my hispecs the other day, went for a drive and one of them leaked. Retightened the nipple and drove it again. Not as bad this time. Today i noticed it had been weeping again after the last drive so i took the new nipple out and replaced it with one of the old ones. Went for a normal drive and perfect. No leaks. Got into my road and thought id see what happens if i slammed the brakes on. Pedal went slightly soft and has again leaked. Any ideas? im fearing the worst that the seat inside the calliper is damaged Its leaking mainly though the bleed hole but i think it may also be weeping around the threads (difficult to tell)

wouldn't ptfe tape dissolve in brake fluid?

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306 rallye reproduction decals (full sets/individual decals) | 306 b-pillar textured vinyl weatherstrips
306 slam panel esso stickers | 306 yellow / orange / pension fund red side door badges
gti6 inlet manifold badges | 306 rear boot badges (p2/p3)
winner of Extraction of toys from prams with outstanding vigour award 2009 [source: gti6 owners club]

It wouldn't work anyway, if its leaking from where it seats it will just leak from the bleed hole anyway.

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'90 1.6 205 GTi, '98 306 GTi-6

Sounds like the caliper seat, I had this issue a few months back, rather annoying.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

What did you do about it Stan? And what callipers are you using?

Will be phoning hispec in the morning!
Cheers for the help so far guys

Fixed



Ground the thread off a old bleed nipple, emptied the calliper then got some grinding paste and used the nipple to regrind the seat. I then replaced the nipple and it p**sed out until i did some investigation and found a build issue on hispecs behalf. The bleed nipple they supply only just hits the seat before the nipple runs out of thread so you get any dirt in there that damages the seat or do what ive done and grind the seat, you have no chance of it sealing because you have run out of thread to tighten it up. Luckily, the standard pug gti calliper nipples are identical except the base of the nipple is about 2mm longer so plenty of thread left. Nipped it up and bang. No more leaking Will be going to get 4 new pug nipples tomorrow to make sure none of them are seeping.

Nice outcome

Nothing worse than fitting nice new bits then getting that sinking feeling when they are not right

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Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.