Reviving Barry

[Marishka]

just dont stand on the brakes as hard?

[ben]

just dont stand on the brakes as hard?

thats all good untill you have an emergency situation and your on auto pilot you brake hard and  lose control cause its all locked up.

ben

[Merlin]

guys you might need to check if you have the right master cylinder the 4 wheel drum master has a 60/40 bias spring and the disc/drum master has 70/30 bias hence the rear locking first you are actually not applying enough line pressure to the front 60% as opposed to 70% also theres a reason the master has 2 outlets for the front brake as the calipers displace a lot more fluid  .hope this helps   Cheers  

[ShaneJ]

Most 4x4 wagons have a self proportioning valve in the back. Maybe retro fitting something like this would be helpful to you. It certainly help if you started putting some load in the back.

[petrolhead]

Hilux 4x4's have a brake prop. valve that mounts to frame & diff might be worth looking at

[Marky]

thats all good untill you have an emergency situation and your on auto pilot you brake hard and  lose control cause its all locked up.

ben
[/quote]

exactly ben...im fine to drive around and have done a few emergency stops and a lot of testing before i hit the highway....

my new brakes are excellent ..just want them to be perfect.....

[Bas / NZ]

I'm alittle lost here, may be because I haven't read the full post, but what about the set up the duel wheel jumbo is using on the rear.

[Jock]

guys you might need to check if you have the right master cylinder the 4 wheel drum master has a 60/40 bias spring and the disc/drum master has 70/30 bias hence the rear locking first you are actually not applying enough line pressure to the front 60% as opposed to 70% also theres a reason the master has 2 outlets for the front brake as the calipers displace a lot more fluid .hope this helps   Cheers  

Merlin,

Are you advising that I run a seperate line to each front caliper because at present I am only running one line to the front and splitting it to each caliper. The master cylinder that I have is PBR part number: P6258A

How do I know what bias spring I have?

Cheers

Jock

[Bas / NZ]

OK I SEE WHAT YOU ARE TALKING ABOUT NOW........

[Marishka]

just dont stand on the brakes as hard?

thats all good untill you have an emergency situation and your on auto pilot you brake hard and  lose control cause its all locked up.

ben

all 3 of my vehices (SWB bedford poptop, holden rodeo, nissan 4x4) lockup if i stand on the brakes hard enough, and you just keep the pannic pressure on them,
the SWB bedford poptop has " No preportioning valve" holden HQ disks on front, standard bedford master cylinder and power booster, and standard bedford drum brakes on the back. (HQ stud pattern front n back)
(anyone know how much it is to redrill highway diff axles from std bedford to HQ Studpattern? ?)
 
brakes are perfect, no dramas at all

i dont think u should be on auto pilot when driving any vehicle.

if i have drama,s with brakes i just take the vehicle to a brake service centre, then you have a warantee, if anything goes wrong.

sounds like Merlin knows the go with the disc/drum master has 70/30 bias spring,
 but ive got no idea what spring is in my brake system.