Author Topic: Bled new Wilwood brakes but still spongy pedal (Read 79369 times)

bfit · « **Reply #100 on:** March 17, 2018, 09:49:00 PM »

I went that size as well

jimandemma · « **Reply #101 on:** March 17, 2018, 09:53:06 PM »

great minds think alike

bfit · « **Reply #102 on:** March 17, 2018, 11:03:13 PM »

I got mine here on ebay
http://stores.ebay.com.au/surplussalesaustralia/_i.html?_nkw=Wil&submit=Search&_sid=1016250459

wabco40 · « **Reply #103 on:** March 18, 2018, 09:43:56 AM »

I am using the same Wilwood calipers, 1 1/8" bore Wilwood master cylinder and replaced all hard and flexible brake lines.
Once I have the pressure bleeder setup it takes less then half an hour to bleed the complete system and to get a rock hard pedal quite high up on its travel.
I didn't bother to bench bleed the master cylinder and figured if need be I could do it on the car.

Looks like the last thing it could be is your master cylinder.

Other thing is the system takes quite a bit of fluid. When I use the pressure bleeder I don't fill the actual bleeder tank I just keep the master cylinder topped up. This means I have to release the pressure from the tank, remove the top plate and top up the master cylinder at least six times for each of the front and rear circuits (making sure I don't run them dry).
Doing this I then know that the first master cylinder full of fluid is getting bled through the system and any air that may be high up in the system is getting forced out.

jimandemma · « **Reply #104 on:** March 18, 2018, 09:07:32 PM »

Are you using the standard proportional valve?

wabco40 · « **Reply #105 on:** March 18, 2018, 10:45:47 PM »

Quote from: jimandemma on March 18, 2018, 09:07:32 PM

Are you using the standard proportional valve?

Yes, I am using the standard 71 valve, however in that year it's more of a distribution block.

sirfixalot · « **Reply #106 on:** March 21, 2018, 09:35:08 AM »

This is a common problem every one changes calipers & master cylinder when i did my C3 years ago I removed the proportion valve disassembled cleaned & re-assembled with rubber grease. Had to blow it apart with compressed air. Have never had a problem since pedal is rock hard. I cleaned all lines with compressed air separately. Then flushed with metho used a bottle each for front & rear. I used a caulking gun nozzle on the bottle & squeezed bottle to force metho thru lines. Then compressed air let air dry for a day then reinstalled prop valve with new hoses, calipers, m/cylinder. Have been on car now for 15years have changed fluid a couple of times since with no problem.I also bled with back up in air furthest to nearest calipers

jimandemma · « **Reply #107 on:** March 24, 2018, 02:51:13 PM »

Well, got in the Wilwood master cylinder and bench bled it first

jimandemma · « **Reply #108 on:** March 24, 2018, 02:53:24 PM »

Set the push rod to the right length on the booster so it was touching the piston and attached the master cylinder, fluid still in it from the bench bleed

jimandemma · « **Reply #109 on:** March 24, 2018, 02:56:57 PM »

Had to bleed the brakes using the pump and hold method as the pressure bleeder master cylinder attachment was too short. Solid fluid from nipples, no air?? Will have to make another pressure bleeder attachment to fit the Wilwood master cylinder. Pedal still goes to the bloody floor!!!

jimandemma · « **Reply #110 on:** March 24, 2018, 03:41:31 PM »

Should I start now on the proportional valve?

wabco40 · « **Reply #111 on:** March 24, 2018, 04:45:33 PM »

If you pm me your address, I will send my larger pressure bleeder cover that fits the wilwood MC.

jimandemma · « **Reply #112 on:** March 24, 2018, 04:50:54 PM »

PM sent, thanks mate.

bfit · « **Reply #113 on:** March 24, 2018, 04:54:38 PM »

Sounds like you need to have a barbecue working bee at your place one weekend soon
Bfit

Vettech · « **Reply #114 on:** March 24, 2018, 05:57:46 PM »

With a sleep over Bfit, he is at NCLE.

jimandemma · « **Reply #115 on:** March 24, 2018, 11:31:47 PM »

Anytime, welcome anyone on here

jimandemma · « **Reply #116 on:** March 24, 2018, 11:45:17 PM »

If the situation is the same after Easter, invites are going out. Plenty to do here when the weather is nice.

Vettech · « **Reply #117 on:** March 25, 2018, 09:38:55 AM »

Looks like Lake Macquarie. Very nice, now very enviouse.

jimandemma · « **Reply #118 on:** March 25, 2018, 12:35:07 PM »

North Arm Cove

Vettech · « **Reply #119 on:** March 25, 2018, 03:02:07 PM »

Oh! Nth Arm Cove in Port Stephens opposite Soldiers Point.

Very nice spot.

Used to be good fishing out and around the Islands.
Good scuba sites, esp the deep trench infront of the port and marina at Nelson Bay.