Doing this bit-by-bit, I was going to cover the wiring and which relays fire what, and the wiring diagrams, but as I said it's all in German, and it'll take me a while to copy and translate. I've tried English, not mentioning the war, then shouting louder. Then ever louder... in English. Hasn't worked so far.
I should detail the differences between LPG & CNG with respect to Necam.
Stepper motors do not change, however the distributor is 'Green' label in regard to CNG and 'Red' for LPG. The outer casting is identical. What changes is the cylinder barrel, see piccy. CNG has wider 'V' slots.You will see these 'V' slots when you look down the barrel.
CNG is on the left in the piccy, LPG in the middle and on the right. Shown with a stepper motor missing and a blanking-plate in its place, ignore the middle dizzy. It's a spare for use in stepper rebuilds only.
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Bifuel V70 Classic 1999 [The Old Grumpy in the Corner, "When I was a lad... blah, bl**dy blah."]
Last edited by CNGBiFuel; May 3rd, 2018 at 13:40.
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