HELP!!! corsa 1.4 turning but getting flames from the carb

[Starreh]

Cors 1.4, had the engine skimmed & refurb'd new timing belt, turning over but not firing, tried giving some throttle but the carb caught fire, any ideas any1?? (timing is perfect) all help appreciated!

[eliot]

Distributor (or leads) 180 out of phase, so firing on the inlet stroke.

[Starreh]

timing got re-done about 6 times 180 out and 180 bk in line, had timing done with scanner and everything! all leads tht ar suppose to spark are sparking. it sounds like its ready to turn then adding a bit gas to get it going causes a pop bit smoke then flames on the carb! any chance you can go into a bit more deatail for me please mate? thnxs alot

[eliot]

Starreh said:

timing got re-done about 6 times 180 out and 180 bk in line,

Is plug No.1 on the distributor (does it even have one? ) - aligned to piston 1 on its compression stroke - not its exhaust stroke.
Sorry - not familar with your engine at all - suprised it even has a carb?

[Starreh]

tht was my m8 that was talking. heres the problem, my girlfriends car snapped the timing belt. So i removed the head had it rebuilt and a full new head set. Fitted it all with all tolerences in limit made sure piston is at TDC and firing order is correct. the timing has been checked over and over again and every timing mark is in place (camshaft, crankshaft and crank pulley). It almost fires then there is a pop and the throttle body bursts into flames like there is a backfire from the throttle body. I have repeatedly check that the valves are opening in the correct sequence. Any help would be much be very appreciated thanks.

[eliot]

Starreh said:

tht was my m8 that was talking. heres the problem, my girlfriends car snapped the timing belt. So i removed the head had it rebuilt and a full new head set. Fitted it all with all tolerences in limit made sure piston is at TDC and firing order is correct. the timing has been checked over and over again and every timing mark is in place (camshaft, crankshaft and crank pulley). It almost fires then there is a pop and the throttle body bursts into flames like there is a backfire from the throttle body. I have repeatedly check that the valves are opening in the correct sequence. Any help would be much be very appreciated thanks.

Normal English is resumed
Only time I've come accross the intake catching fire like that is when your'e firing on the inlet stroke not the compression stroke. So if you have checked that - I'm done.
We need someone with a little more experience of that motor for more suggestions.

[Starreh]

thanks for the help mate. hopefully get it fixed 2day

[DaveL485]

Firing at the wrong time.

Either- Cam timing is out
Distributor or rotor (if there is one) on wrong
Plug leads on wrong

You did get new valves fitted, didn't you?

[Starreh]

its fixed for now! running like a bag of hammers but running thankfully, thanks for all the help guys