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Relay sounds like its correct.:)
LPG consumption should be around 25% higher than petrol all things being equal, try running it a bit leaner and check your idle timing is up around 6-10 BTDC. I think 25L/100km is normal for a basic (non monitored) gas system. If you want better you either run a lean cruise power valve, this has cruise and power settings (runs off manifold vacuum), or run a O2 sensor, processor and micro switches on the throttle to limit the zone of lean mixtures.
Thanks very much for your help Bee Utey! If you're ever in Brisbane, I'd be happy to buy you a drink or two :)
Checking the timing is the next thing on my list to sort out.
Cheers
Stu
Just another couple of questions, if you don't mind?
Thanks again for your knowledge sharing. :D
- to adjust mix on the converter is lean clockwise or anti-clockwise or does it depend on the converter?
- what do the adjusters on the gas lines to the carbies do?
- you've previously mentioned running premium unleaded allow the timing to be closer. Is it just the octane we'd use premium for or is there other factors? Would a 95 Octane E10 fuel suit?
Changing idle mixture is not going to give you economy. Set it for best idle. Most converters are clockwise=lean but Impco are backwards.Quote:
Originally Posted by StuRR80
The adjusters in the gas lines vary how rich the mixture is under load. With no idea as to what they look like I suggest you turn them inwards 1/4 turn, test drive, another 1/4 turn, etc until you lose a bit of power then unscrew 1/4 turn until adequate power is available.
Premium unleaded allows the engine to safely run more advance than standard. Ethanol containing fuels have a short shelf life, and attract moisture. They should not be used in dual fuel systems unless you intend to use up the petrol within the next week. 98 octane unleaded would be my choice.
Ah! ok... So really the "mix" screw on the converter is just for idle and the taps on the lines to the carbs are for adjusting the "running" mixture? So adjusting the load mixture by turning them in (clockwise), should lean the mix?
Also, should I be using some type of upper cylinder lube?
Quote:
Originally Posted by StuRR80
Yup
Quote:
Also, should I be using some type of upper cylinder lube?
I don't put upper cylinder lube on LR V8 engines, they very rarely burn valves.