Hi,
I'm looking at recommissioning the LPG system on LDV Convoy with above engine and looking under the bonnet trying to work out whats normal and whats added and whats missing (and why!).
On the exhaust side of the engine there is what seems to be a vacuum rail with pipes into each cyclinder - on the end of this rail is some sort of vacuum valve and the pipes for this are disconnected and blocked up - they seem to lead round to the inlet manifold.
I'm guessing its some sort of scavenging sytstem for unburnt fuel?
Van run fine as is but dunno what it actually does and should it be connected? Was it disconnected because of LPG system or is there some other reason?
Cheers