P38A 95 DT brake bleeding (or rather lack of fluid)

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After seeing how complicated these buses are, even the braking system.
You can appreciate how they end up on the going-for-cheap-bay after being tackled with enthusiasm and sold on with resentment....
Well done the zone!:cool:





Oh and jersey:p
 
Jerseyp38 said:
Tonight I rigged up a little compressor set to about 10 psi and seemed to move things along nicely. Followed RAVE. The only noticeable difference being that on the offside rear caliper after two 4 sec pulses the fluid was slightly clouded but it issued forth freely and filled my little container very quickly.
Click to expand...

Nice one. Real Heath-Robinson affair. Love it. I keep thinking a compressor of some sort would be useful!
 
Must admit borrowed the compressor, baby one like that has limited uses as not enough air volume to power tools, would love an air wrench. for the diesel tank perhaps but would need to block off the vent? Have changed the in tank pump and not too bad as long as you can get the car up high, think I had 4" concrete blocks laid flat with 7"x 2" timber laid flat on top of the blocks under each wheel.

I feel quite well qualified in Heath-Robinson, shame you cannot get a certificate for it! Always start simply though, must say the reservoir was bulging slightly even with 10 psi hate to think what it would do with 30+ psi from a spare tyre.
 
Jerseyp38 said:
Must admit borrowed the compressor, baby one like that has limited uses as not enough air volume to power tools, would love an air wrench. for the diesel tank perhaps but would need to block off the vent? Have changed the in tank pump and not too bad as long as you can get the car up high, think I had 4" concrete blocks laid flat with 7"x 2" timber laid flat on top of the blocks under each wheel.

I feel quite well qualified in Heath-Robinson, shame you cannot get a certificate for it! Always start simply though, must say the reservoir was bulging slightly even with 10 psi hate to think what it would do with 30+ psi from a spare tyre.
Click to expand...
Sorry mate, that was a tongue in cheek remark, anyone who had been following a recent non starting diesel post will know what I meant.:D
 
If first part of bleeding process has been done properly there should be no need for that setup. Fronts are bled without pressure in system because they are hydrostatic. Rears must be bled with a partly pressurised system or they cannot be bled. That is why you turn ignition on for 4 or 5 seconds then off then bleed. You repeat this until rears are clear of air. Rear brakes do not work unless the system is pressurised.
 
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