Nova 1.0 carb back fire

[85saloon2dr]

Need some advice on my 1.0 won't stop backfireing from the carb, constant when idle, louder when rev thanks peps

[*Jurgen*]

Are the ignition settings allright?

[85saloon2dr]

Yeah I think so could it be the timing out slightly

[staggy_gsi]

check the ignition timing again and check the cam timing also

[Jon_nova1]

Going by your username its an 85? has it been converted to run on unleaded? if a previous owner has always used unleaded additive and a new buyer doesn't know and fills it up with straight unleaded it will cause the valves to burn out, similar issues in a friends old nova, it resulted in flames coming out the carb lol

[John]

get the ignition timing checked :)

[85saloon2dr]

Its been converted, il check the timing tonight hopefully it will be that otherwise guna chuck my 14nv in. Thanks guys

[85saloon2dr]

Ive tryd the ignition timing and no change, it must be the valves still not sure tho

[John]

Ive tryd the ignition timing and no change, it must be the valves still not sure tho

How exactly did you check the ignition timing?

[85saloon2dr]

by twisting the dizzy cap

[GRUNT 16V]

did you use a timing light ??

[John]

As above, you need a timing strobe to "check" the timing. You also need to turn the whole distributor not the cap. Are the leads in the correct firing order?

[85saloon2dr]

Yeah I turned the whole distributor and have the leads in the right order. Not messing about with it any more doing my conversion this weekend