And as Scott at SGS said to me when I first rolled up with a Weber carburettor on my bus... you should fit a fuel shutoff solenoid so that when the carburettor leaks it doesn't empty into the oil. I did, so all that happens when the needle valve leaks is the mixture goes rich at idle and it starts to stall at idle, then take ages to start because it flooded to death.
thanks for the advice - I already have one on order arriving tomorrow - just need to fit it...... any advice on wire size and where to attach it... I've read connect to the coil ? Cheers
I fitted mine on the chassis rail following a metal can filter, basically the shutoff is before the fuel line enters the engine bay, with a filter to protect the valve from dirt keeping it open. This means if there is a fire in the engine bay, stop the ignition and the fuel shuts off. You can create setups using relays triggered off the coil pulses or off the alternator warning light but you need to ensure the solenoid opens the valve for a short tlme before the engine is running. Basically the valve is powered off the coil, wire size can be pretty fine, the solenoid coil draws about 0.1 amps. Its more its mechanical robustness that limits the wire size, I use 0.5mm2 or 1mm2.
Ah. That’s really helpfull. I have a filter before the line enters the engine bay so I should be able to put it after that. Bought a Valtek solenoid on eBay Sent from my iPhone using Tapatalk
I hink Thats the right kind of thing but I personally would have gone for a slightly more expensive metal bodied one, more to do with heat resistance when being stewed over a petrol fire. For cutting off fuel flow to stop the effect of leaks, both plastic and metal valves are perfect.
There were some by the same manufacturer on eBay with brass valves... my eBay search for Valtek fuel shutoff showed yours first then brass ones.
Quite a few use exactly the 1 pictured....mines been on years but then it hasn't been on fire......yet.....
