think im stuffing up brake bleeding

[Vt-Brrrlina]

hey folks,

dunno if its the upgrade or me -(prob me)

upgraded the brakes on my vp v8 to the ve brake upgrade 322 mm rotors.

all went well they look great however........

i bled the brakes - had the girly push on the brake pedal a few times whilst having the bleed nipple open so brake fluid squirted out then on the last push as she pushed in tightened up the bleed nipple

i then did the other side same same -- is this correct?????

problem i have is when the car is on (motor running) the pedal is soft and goes straight to the floor i know there supposed to be a lil soft but didnt think they go straight to the floor

[stocky]

might need to upgrade your master cylinder

[camstatic]

What you want to do is get her to pump it 3-4 times then hold it down, at which point you tell her to 'hold' until you say it's ok, you loosen the nipple and let it dribble, then once flow stops (your girly's foot will fall to the floor, re-assure her to hold it down) close the nipple off again (once it's closed tight she can lift and prepare for another pump-up). Repeat this process a few times until both A) bubbles stop appearing in the fluid coming out of the nipple, and B) pedal feels nice and solid.

The key thing to remember, is NO lifting the brake pedal whilst the nipple is open. Also make sure there is plenty of fluid in the reservoir at all times.

[Vt-Brrrlina]

yeh im just lookin up that at the moment - it all looks pretty standard cept for the bracket to make up - wonder if anyone on here is good at making them - doesnt look hard i just donthave the equipment to do it

[stocky]

yeh im just lookin up that at the moment - it all looks pretty standard cept for the bracket to make up - wonder if anyone on here is good at making them - doesnt look hard i just donthave the equipment to do it

grab a vs brake booster, a vt master cylinder. it all bolts up with no brackets to make. if you really want a vt booster you will need the bracket made up. you are also going to need adapters for your brake lines to suit the vt master

[Vt-Brrrlina]

ah ok so vs booster and vt master - cool so just gotta suss out adapters - hmmm ill look them up - just got my mrs to do what you guys said - the brake pedal still goes straight to the floor - grrrrrrrrrrrrr im sure its gotta be something im doing wrong - im mean id expect not perfect but id expect they sorta work right from the box lol

[camstatic]

If you were repeating what you described to us earlier more than a few times, you'll have a lot of air to push out... You're only doing one calliper at a time right, and all callipers other than the one you're currently bleeding have their nipples closed?

[Vt-Brrrlina]

yeh only one at a time - but im only doin the fronts - do i need to do the rears as i havent touched them in any way and the reservior was never emptied

[Vt-Brrrlina]

also for stocky what difference is there with vs booster and vt booster - i think i read somewhere the vs one is plastic - but other than that whats the difference between my vp one an a vs / vt one or why not use a vs booster and master ---- last question are they v6 - v8 same same or different

[camstatic]

If your reservoir hasn't emptied you'll be fine, I'm not sure how much fluid it takes to make the ve callipers work, so I'll hand this one over to stocky/others now that I've had my input. Good luck!

[azzfox]

had the girly push on the brake pedal a few times whilst having the bleed nipple open.....then on the last push as she pushed in tightened up the bleed nipple

Close the nipple before she releases the pedal. What your doing now is pumping out fluid and drawing in air, then closing the nipple thus trapping a whole lot of air in the caliper.

The way to do it is have her push the pedal to build pressure in the lines, while you then open the bleeder to expel fluid and any air. Now just as the pedal almost reaches the floor close the nipple. Now it is safe to release the brake pedal drawing more fluid into the system from the fluid resivour. (Dont forget to keep topping the fluid up!)

Key message: DO NOT release the pedal while the bleeder is open.

[camstatic]

I could've sworn I just said that :P

[Vt-Brrrlina]

ok well shes gettin sick of me for now - ill continue this tomorow morning wheni have more time - any comments on the vs boosters etc... if i go shpopping tomorow for one am i looking for v8 - or arethey both the same

[azzfox]

I could've sworn I just said that :P

Probably. Excuse me if I missed it. I just read the first post then cut to the chase .

[camstatic]

All good.

[stocky]

vt booster is a bit bigger. vs should work fine though. thats what i use. just remmeber to also grab the bracket off the vs that holds master cylinder to the strut tower. its flipped opposite to the one you have now. v6 and v8 boosters are the same i think

[Vt-Brrrlina]

ok cool ill try and get those today if i can -

[leigh 7005]

someone quote me if im wrong but dont you have to disable the abs when you bleed the brakes on abs cars?

[Vt-Brrrlina]

ummm dunno bout that - mines not abs thankfully - i think its crap - but dunno

[Not_An_Abba_Fan]

Correct bleeding procedure as follows.

Top up reservoir.
Starting at LHR, attach clear hose to the bleed nipple and place the other end into a clear bottle.
Open bleeder, push pedal down, close bleeder. Repeat until you have a solid stream of fluid with no air bubbles.
Repeat on each wheel, going to RHR next, then LHF and finish on the RHF.

If you haven't let the reservoir run dry then it's possible to skip the rear wheels as you haven't touched them, but it is always a good idea to do them as well to flush the system.

Keep checking the reservoir so it doesn't empty. (Obvious I know.)

See how that goes.

[delcowizzid]

sometimes you need to bleed at the master cylinder where the pipes attach as well as air can get trapped at the top of the pipes.same procedure hold foot on brake and crack the pipe fitting while holding a rag around it so you dont get fluid on the paint as it will eat the paint off.

[Not_An_Abba_Fan]

^^ Good point. When replacing calipers, undoing the line can let an air bubble travel up the line to the master cylinder.

[Vt-Brrrlina]

ok i will be doin the rears in a sec - and see how it goes - it sux i have the worst driveway for workin lol im always last one home and 4 cars in a 1 driveway house neva works hahahah

[Blown V6 Hatch]

Quick question, have you got a photo of the calipers on the car?? Sounds to me like the calipers are upside down...Make sure the bleeders are at the top of the calipers and the brake line is at the bottom. If the calipers are upside down (which is quiet easy to do) the bleeder wil be at the bottom of the caliper allowing all the air to stay above the bleeder. If this is the case, you will never get it to work!

[Vt-Brrrlina]

shit dont say that the bleeders are at the bottom - infact i thought about it - the callipers have R and L on them - so i put r to drivers side and L to passenger side thus putting the bleeders at the bottom and the brake lines at the top