Help: Cailper Failure AE86 > BANG

[beeker]

I recently had the two rear AE86 callipers professionally rebuilt (unnamed merchant at this stage), and fitted them myself.

I bleed the rears and had got to the last front wheel when BANG, what the!! Went to the back of the car, and there was brake fluid splatter everywhere and on the wall too. On inspection, the caliper piston rubber grommet has a 2mm hole in it. I assume the seal below it gave way.

Could I have caused this ??
> Could I have been bleeding them incorrectly ?
> The new pads were extra thick, and I had to twist the callipers all the way in to slide the calliper over the rotor.

Any ideas ?
Faulty parts ? Incorrect rebuild of the calliper ?

Note: I hadn't even started the engine, and got the brake booster started yet. Also installed some braided lines at the same time... Not enough give in the system with meaty pads ??

[evil_si]

probably been pinched on assembly, and when almost up to full pressure has given way

[vvega]

yeah sounds like that or they didnt use rubber grease and when you twisted it its pinched and grapped on the bore wall

v

[NZ_AE86]

IMO this could only happen if they were poorly rebuilt.