Hi all. I need to service my Mazda famila as it has a miss fire. What do I set the plugs and points to and what should the timing be set to. The engine is running on both gas and petrol.

Thanks.

Swifty

 

Swifty, you have me stumped!
Do you mix the gas into the petrol and what's the mixing ratio? Or do you have separate tanks and you switch from gas to petrol?

As far as points and gaps go I can't help because I don't know what engine you have. You may be able to get a shop manual for your particular model.

 

Hi there many thanks for your reply. Yes I have two tanks one for Gas and one for Petrol so I can switch between the two BUT NOT AT THE SAME TIME. I have a UC 1400 engine. I can't find any information on it.
The other thing is I need to know what the rear axle ratio is and can I change it?

Swifty

 

Swifty, Now I am getting it. In the US gas is the same as petrol in the UK. And gas in the UK is the same as propane or LNG (liquified natural gas) in the US. In the US here are very few stations that sell LNG, therefore LNG capable vehicles are very rare.
I have no information on a UC 1400 either.

 

No I don't run both Gas and prteol at the same time. I run it on LPG and some time petrol when I run low on LPG.
It seems I am the only one that has a UC 1400 CC engine. I can't get any help from anyone on this type. Just what do I do with it. I have now replaced the points and set the gat to 0.015 inch. The engind is running much better but I don't what the timming should be. So I have to guess and hope it's OK.

 

What year is this engine from?? Must be VERY old if it uses points, I would rip those out and put in an aftermarket solid state version myself.