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brake proportioning valve
Posted: Tue Jul 14, 2009 9:53 pm
by one_waz
is the brake proportioning valve in the back of the LN65 hiluxs really neccesary? im in the middle of doin a 4 link and dont really when it connected to the diff if i dont have to. i wont be towing or anything, can i just cut the bit off the diff and leave it at that? .
cheers
Waz
Posted: Wed Jul 15, 2009 2:13 am
by DUDELUX
i know that it takes some braking bias from the rear and sends it to the front so the car stops nice and smooth, not touchy or jerky. i only know that much as i had to have my rebuilt last yr,
if you remove it altogether, then maybe upgrade braking system to suit.
umm im not a braking expert, get in touch with a brake expert and ask questions,
if you were in sydney, id send you to burt bros in fairfield, they really know their stuff, but youre in qld, so i wouldnt know who to go to
sorry i couldnt help more, all the best with it
Posted: Wed Jul 15, 2009 4:33 am
by one_waz
cheers mate, anyone else know anything about it?
Posted: Wed Jul 15, 2009 6:55 am
by roblrc
There is a chance that you will keep locking rear brakes all the time even with light pedal application and lose front brake effeciency without one. Try and find a similar master cylinder with an internal prop valve or get an adjustable prop valve and set it up the brake balance
Rob
Posted: Wed Jul 15, 2009 9:32 am
by yamaha__308
Or just cut the rod off at the valve and tie it up.
Im going to use a bit of threaded rod and nut to allow for adjustment.
Posted: Wed Jul 15, 2009 12:16 pm
by 4RUNNER_01
Yep i second yamaha just tie it up if your running 12.5 wide tires you wont notice it really and the brakes are too crap too lock up, on tar anyway
Posted: Wed Jul 15, 2009 1:09 pm
by one_waz
sweet thats the anwser i was looking for, so you can just tie it up or leave it hanging down?
Posted: Wed Jul 15, 2009 5:28 pm
by yamaha__308
Its a proportioning valve. As the rod is raised, when the suspension is compressed due to a load, the braking force to the rear brakes is increased.
Find a position of the rod where the brakes are effective, while not locking up easily, and "tie" it off. I would make something more solid than just tieing it. I am thinking of a bracket bolted to the two bolts on the valve, with a nut and a piece of threaded rod attached to the rod.
Posted: Wed Jul 15, 2009 6:03 pm
by pinkfloyddsotm
im not running a BPV and i have a 4link rear. get a pro to do the brakes and you wont have any trouble.
Posted: Fri Jul 17, 2009 6:51 pm
by mosus
i have a dual cab ln106 and i pulled mine off all togther best thing i did stops on a dime and never had lock up, i adjust my rear brakes every 5000'k, obvioulsy if i jumped on them i'd get lock up but you'd get that with it on anyway
Posted: Sat Jul 18, 2009 12:16 pm
by andyjim243
You can get an adjustable brake bias/proportioning valve to replace it,you adjust it via a dial/screw/knob until you are happy will it.
Locktup sells one as part of there rear disc conversion kit
http://locktup4x4.com.au/hilux-solid-fr ... t-260.html
Email Chris at Locktup and see what he can do them for
Cheers Andy
Posted: Sun Jul 19, 2009 1:16 am
by one_waz
cheers people, much appriciated