We all know the rear brakes on the Hilux are not the best but I have a problem that has me nearly beaten and sobbing.
It started when I did my first brake replacement on this vehicle.
I replaced the front brake pads and replaced and cleaned the rear brakes
While I had the rear end up in the air i started the ute put it in first and let out the clutch to get the rear wheels moving.
I applied the brakes expecting the rears to start to brake and nothing. I applied as much pressure as i could on the brake pedal and still nothing. I was expecting to stall the ute but no.
So I re-checked every thing and could not find any thing wrong.
Since that day I have bled and re-bled the whole system in including the Rear Load sensing valve.
I have replaced the master cylinder, rear brake pads with a different brand, replaced the rear drums with new ones. made sure the rear load sensing valve is forced up. I even stripped the rear Load sensing valve and it looks as good as the day it was manufactured.
I had assumed that it was the Load sensing valve as that was the only thing I haven't replaced. Except that the hand brake wont hold even on the slightest incline.
I assumed that I must have re-assembled the rear brakes wrong buy have checked against the service manual. and am confident that I have it right.
In frustration I just adjusted the rear brakes up to the point where they were really really dragging thinking that they may need to bed in and I have done this a couple of times.
Well it is 20,000 Kms later and it is only slightly better but the hand brake will still only just hold on medium inclines
I took the drums off and I can see that the brake shoes are now bedded in but not over the entire surface. I estimate that the are bedded in on 60 to 75% of the surface area. I was expecting them to be fully bedded in.
Now I have an older 93 Hilux with the same setup and have had those brakes on and off dozens of times and never had this issue. On my old girl I can lock the rear brakes up under heavy braking.
This issue is driving me up the wall. At this point I really think it is crap brake shoes but given I have tried two brands ( Repco and Bendix) I don't want to spend more money on another set until I have some confidence that another brand will make it better.
I can only think that I could try the Toyota Branded brake shoes. Or that some how I have the rear assembly in wrong some how but I cant see it..
Any one have any suggestions. I have ran out of ideas?