TwinTurbo wrote: ↑10 Oct 2024, 20:33
does it do it every time your on idle, hot,warm , cold.
The idle cutoff valve was also on my list, but sort of ruled that out. ( although have a cunning plan for any future failure )
It does it once the engine has warmed up, every single time without fail. The idle bypass 'clunks' when powered up but is that a definitive test that it's working? I'm assuming it works like a solenoid - on/off?
Simplest way i can think of ruling the idle cut off solenoid out is either exchange it for a known good one , or disconnect the power to it whist the engine is running at idle ( if you can get it to idle that is ) you will see. If there is any difference
Disconnecting it seems to be the simplest path as long as, like you say, I can get it idling. It might be worth increasing the idle just for the test (in the hope that this will allow it to idle).
Why would the glass be anything other than half full?
Some implementations don't use the valve, one of it's uses is "anti dieseling solenoid" i don't know it's function otherwise TBH... VW seemed to want to implement it but other brands did not bother.
I followed my own advice and attempted to clean the inlet filter on the carb... my carb doesnt even have one though it must have gone missing years ago...
only cure for me is a refurb kit.. not sure if Im up for the challenge. It runs sweet as a nut on LPG, but like a pig on petrol has done for years but with LPG as it is I need to get this sorted...
crazyhorse wrote: ↑21 Oct 2024, 19:25
Any update what2do?
I followed my own advice and attempted to clean the inlet filter on the carb... my carb doesnt even have one though it must have gone missing years ago...
only cure for me is a refurb kit.. not sure if Im up for the challenge. It runs sweet as a nut on LPG, but like a pig on petrol has done for years but with LPG as it is I need to get this sorted...
Only a small step forward but in the right direction. Too wet on Sunday to do much but I did establish my idle stabiliser is working. Initially, when cold and the choke was on, pulling the feed off did nothing (I did this a few times to be sure), the engine continued to idle (high due to the choke). Took the van for a quick spin to warm it up, removed the feed and this time the engine stalled. Repeated it a few times with the same result.
I then went and filled the van up with lpg for the first time in months, switched over and it runs perfect right down to slow idle. I think it's safe to assume the fault lies with the petrol supply so I'm hoping it can be resolved by changing the filter at the tank outlet. Easy enough to do on a dry day, will hopefully report back soon.
Why would the glass be anything other than half full?
crazyhorse wrote: ↑21 Oct 2024, 19:25
Any update what2do?
I followed my own advice and attempted to clean the inlet filter on the carb... my carb doesnt even have one though it must have gone missing years ago...
only cure for me is a refurb kit.. not sure if Im up for the challenge. It runs sweet as a nut on LPG, but like a pig on petrol has done for years but with LPG as it is I need to get this sorted...
Only a small step forward but in the right direction. Too wet on Sunday to do much but I did establish my idle stabiliser is working. Initially, when cold and the choke was on, pulling the feed off did nothing (I did this a few times to be sure), the engine continued to idle (high due to the choke). Took the van for a quick spin to warm it up, removed the feed and this time the engine stalled. Repeated it a few times with the same result.
I then went and filled the van up with lpg for the first time in months, switched over and it runs perfect right down to slow idle. I think it's safe to assume the fault lies with the petrol supply so I'm hoping it can be resolved by changing the filter at the tank outlet. Easy enough to do on a dry day, will hopefully report back soon.
You need to remember that if it’s an open loop lpg system, the mixing of the fuel / air is done before the carb, and the carb is basically just a funnel ……. So jets and stuff not being used.
Does prove its not a ignition issue tho, lpg would show a spark issue up before petrol everytime
Mocki wrote: ↑22 Oct 2024, 09:08
You need to remember that if it’s an open loop lpg system, the mixing of the fuel / air is done before the carb, and the carb is basically just a funnel ……. So jets and stuff not being used.
Does prove its not a ignition issue tho, lpg would show a spark issue up before petrol everytime
Absolutely, I'm being super optimistic and hoping it's as simple as a dirty fuel filter.
Why would the glass be anything other than half full?
it must have gone missing years ago...
