OptionZero
03-24-2004, 02:06 AM
I just completed swapping the Q45 brakes , and have a gigantic problem.
When I step on the pedal, there is ZERO resistance, no braking force until the pedal hits the bottom.
All 4 corners were bled (the fronts with Russel Speed Bleeders), fluid leve is topped off and checked before and after bleeding.
THere is no brake fluid leakage we can tell, as fluild level is the same after we tried some braking runs.
After the swap, i also got a LOUD creaking/groaning noise from the rear half of the car, possibly the suspension...we do not suspect the brakes because we did not touch them at all.
The swap:
Q45 rebuild calipers with stock brackets. For those of you who want to do the swap in the future, USE THE 240SX BOLTS to Bolt the caliper to the car, the q45's are WAY too long
brembo rotors, blank
earls' stainless steel lines
axxis metal master pads
Possible problems:
We may have gotten brake fluid on the rotor, which would result in lots of slippage and explain the lack of braking force. This does not explain the lack of pedal pressure or the croakin noise.
Leak? No fluid was found on the ground of the parking lot where we tested the car...we tighted everyhing, we have every washer in place...
Master cylinder: we didn't touch this at all, because the main advantages of the q45 swap are using stock lines and MC...i dont see how we could have damaged it.
Actually, while putting the new lines on, i may have pulled on the line a little bit, which MIGHT have applied force to the MC? I will check on this in the morning, it is far too dark.
Finally, I changed my Zilvia.net sticker from a blue one to a new white one. Clearly, West sent me a defective one which destroyed my brakes. Damn you! :)
Any other suggestions? Tomorrow I will shoot the brakes with brake cleaner and wipe off any lubricanting brake fluid...and look at it in the day light, since we did this at nighit (bad idea)
To anyone doing the swap:
make sure you have bracket AND caliper, they are separate parts on the Q45
Use 240sx bolts (hey are shorter than q45 bolts) when bolting rotor to caliper
Keep ALL the washers, know where they are.
Speed bleeders kick ass
Have a friend who knows something about brakes.
When taking off the big bolts (2) holding calipier to car, remember that lefty is not loosey because they are facing a different direction
GET A FUCKING LASER SCALPEL TO CUT THE HEATSHIELD. I swear that thing is the devil incarnated into a thin sheet of metal....its impossible to bend properly, just bite the bullet, shell out $30 for a GOOD SET OF CUTTERS and cut that shit off.
When I step on the pedal, there is ZERO resistance, no braking force until the pedal hits the bottom.
All 4 corners were bled (the fronts with Russel Speed Bleeders), fluid leve is topped off and checked before and after bleeding.
THere is no brake fluid leakage we can tell, as fluild level is the same after we tried some braking runs.
After the swap, i also got a LOUD creaking/groaning noise from the rear half of the car, possibly the suspension...we do not suspect the brakes because we did not touch them at all.
The swap:
Q45 rebuild calipers with stock brackets. For those of you who want to do the swap in the future, USE THE 240SX BOLTS to Bolt the caliper to the car, the q45's are WAY too long
brembo rotors, blank
earls' stainless steel lines
axxis metal master pads
Possible problems:
We may have gotten brake fluid on the rotor, which would result in lots of slippage and explain the lack of braking force. This does not explain the lack of pedal pressure or the croakin noise.
Leak? No fluid was found on the ground of the parking lot where we tested the car...we tighted everyhing, we have every washer in place...
Master cylinder: we didn't touch this at all, because the main advantages of the q45 swap are using stock lines and MC...i dont see how we could have damaged it.
Actually, while putting the new lines on, i may have pulled on the line a little bit, which MIGHT have applied force to the MC? I will check on this in the morning, it is far too dark.
Finally, I changed my Zilvia.net sticker from a blue one to a new white one. Clearly, West sent me a defective one which destroyed my brakes. Damn you! :)
Any other suggestions? Tomorrow I will shoot the brakes with brake cleaner and wipe off any lubricanting brake fluid...and look at it in the day light, since we did this at nighit (bad idea)
To anyone doing the swap:
make sure you have bracket AND caliper, they are separate parts on the Q45
Use 240sx bolts (hey are shorter than q45 bolts) when bolting rotor to caliper
Keep ALL the washers, know where they are.
Speed bleeders kick ass
Have a friend who knows something about brakes.
When taking off the big bolts (2) holding calipier to car, remember that lefty is not loosey because they are facing a different direction
GET A FUCKING LASER SCALPEL TO CUT THE HEATSHIELD. I swear that thing is the devil incarnated into a thin sheet of metal....its impossible to bend properly, just bite the bullet, shell out $30 for a GOOD SET OF CUTTERS and cut that shit off.