Truck & Bus Forum - Any recomendations?

Welcome to Truck and Bus Forum, Clive.
Your vehicle looks like an ex-library van

Quote:

Originally Posted by Clive (Post 14931)

an air tank to regulator valve brake hose

I don't understand what this part would be - the air supply from the compressor would have a hose to compensate for the engine movement then the rest of the air piping would be either steel (bundy) piping or, depending on the age of the vehicle, nylon tubing. Replacement nylon piping would be made up 'in situ' according to requirements and wouldn't have a discrete part number.

By 1983 PJK models would probably be piped in flexible black nylon tubing approximately ½ to ¾ inch in diameter. If this is the case, then you need to find a workshop that uses the same brand of tubing that uses matching end fittings.

Are you referring to the (4mm?) diameter nylon sensing line from the condensing tank (with the automatic drain valve) to the regulator valve (?) which controls the compressor cut-off pressure - this again would be supplied 'on the roll' for cutting to length in situ (with small metal olives and metal nuts), or are you referring to the load-sensing valve that supplies air to the rear brakes via a ¾ inch diameter rubber hose?

I'm confused . . . :confused:

What diameter is this hose, what approximate length is it and is it near the engine or the rear axle? Is it rubber?
What form are the end-connections? Are they metal or does the tubing push-in to a metal or plastic fitting?

What do you think that the 'regulator valve' regulates? (as, strictly speaking, any valve from a pressure-regulating valve to a footbrake valve can be described as a regulator valve. What size is the valve? Is it 3 inches tall?

What fault is apparent due to the 'failure' of this hose?

I suppose you might be talking of the multiple-circuit protection valve that feeds air to the reservoirs, but that would either be metal bundy piping or nylon tubing (pre 1970 all vehicles had all brake pipes in metal 'bundy' tubing (see:- http://en.wikipedia.org/wiki/Bundy_tube ). Replacements for this tubing are sometimes made from 'Kunifer' or copper (metal) tubing.

After (about) 1980 I would expect the main brake pipes to be nylon tubing (I don't know the date when this change occurred) - and there were several different suppliers with different solutions for end fittings, some of which were 'non-detachable' whilst others had metal nuts connecting to metal fittings (such elbows and through-frame connectors). You would have to find a supplier of compatible components.