Going through all the parts that I’m soon to be re-fitting to my bus, I’ve come upon the brake pressure regulator. I was just going to give it a lick of paint to tidy it up before fitting, is there anything I need to know? Is there any point opening it up to look inside or do I just assume it works ok? I can hear the ball rattling back and forth when I shake it, is there any more accurate way of testing than that?
It’s worth stripping and cleaning. Several posts on here. Easy enough to spruce up, assuming is was working in the first place It will be full of 40 years worth of muck.
How would you know if it wasn't working ? Generally poop brakes I assume ? Or something more noticeable ?
No real way of testing it. If your back brakes don’t lock up when you slam on the anchors, likely to be working They benefit from a good clean, tho’. Plenty of rusty muck in mine.
Mine got an advisory from the MOT , another reason to have some kind of inspection.. ? Sent from my SM-G960F using Tapatalk
Easy enough to take to bits. Unlikely you'll find spares for it. I reused all the old stuff, apart from making a new gasket. It's likely to be full of cruddy iron oxide.
^^^ what Snotty said. Nice and easy to do and just need to cut a gasket. It's probably never been done and it'll last another 40 years
I was concerned about the piston seals - God knows how the thing works - but I just lubed them up and stuck them back in again. Seems to work fine once I’d cleaned the muck out of it. Was changing all the brake pipes, and you don’t want that stuff floating around.
Uneven rear brake application , no leak and it was a few years ago . Just gave the balancer a strip and clean - jobs a good un. Point being it's worth getting someone to give it the once over and the brake testing is summat you can't do properly without the rollers . Doesn't have to go on the computer... Sent from my SM-G960F using Tapatalk
However, it's impossible to test the regulator on the rollers so I'd agree for sure the best thing to do with them is take apart and clean up. Most people don't volunteer for that until it fails for leaking and they see the price of a new one... if they can find one.
A few years ago my MOT place failed it as it was leaking, they bypassed it and said the brakes were fine and it wouldn’t cause a problem as the balance was fine without it. I did rebuild it and refitted anyway
Not the first time I've heard of that. Balance is fine unless hard braking in the wet whence the rear locks way before the front leaving you a choice of swinging the rear end into the oncoming traffic or not stopping quickly enough.
I've been having braking issues for a while - after running for 10 miles or so, the pedal had less and less travel before the brakes acted, until there was no travel at all and they started to bind and the van would stand firm on the flat or inclines. Brakes would be fine again after a few hours, but repeat as above if out on a run. I've had new calipers, new servo and new master cylinder and, after needing them adjusted again several times, seems ok, but I'm wondering if this was the culprit all along. Is this the equivalent brake pressure regulator on my Brazzer? Its fitted just behind the servo on a chassis rail
So I can lock my brakes up Nah, mine are pants , no servo but marginally better now I've fitted ebc green pads up front
I have managed to lock up at 40mph all stock no servo , with somebody pulling out in front of me. The bus stopped in a straight line because the regulator worked, and I wasnt silly enough to replace rear drums with discs, then sideways would have been a thing...
