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80 series brakes

Tech Talk for Cruiser owners.

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Posts: 398
Joined: Mon Jun 21, 2004 7:57 pm
Location: Berwick, Vic

80 series brakes

Post by g35me »

Whatr can cause low preasure in the brake pedal if there is no air in the lines?

I have bled each caliper and the proportioning valve, also replaced the master cylinder and still have very little (un-drivable) pressure in the pedal.

I have also replaced front and rear calipers so I know that none of them are seized.

Thanks
Twin Turbo V8 80 Series Ute with Extra Bits
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Post by Pauwolf »

the front callipers can be real hard to bleed, i had the same problem with my LC. I ended up tapping them with a small implement to release the air. it took hours to get them right



Paul
91 FJ 80 Project on the go - air lockers, 3in lift, super duper 3F, 36" pedes, toyota V8 getting prepped now
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Post by crankycruiser »

Have u lifted it recently.. u might need to adjust the proporting valve thingy
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Joined: Mon Jun 21, 2004 7:57 pm
Location: Berwick, Vic

Post by g35me »

no lifts recently, I am wondering if the proportioning valve could be a problem. Do they cause situations like this if they are not working? Do they fail?
Twin Turbo V8 80 Series Ute with Extra Bits
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Joined: Tue Mar 23, 2004 9:48 pm
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Post by Mick_n_Sal »

I was at a 4wd parts place up here on Saturday morning ( Lunds ) and a guy with an 80series was there and mentioned he was having brake trouble. It turned out to be the prop. valve. Dont know whether this is common but both he and the guy behind the counter seemed surprised.

Mick
HIS: '90 FJ73 Awaiting funds for mods
OURS: '00 HZ105 Cruiser - HIDs, GPS, UHF, LF240s, BFG MTs, BB, Steps, Outback Drawers . . . .
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