fiat 126 starts, but doesnt go

[kennnnny]

hi there,

650cc, the car starts up all fine, choke wokes (revs increase) but when i throttle the car cuts out  

my story.

my alternator belt was too tight so it blew the bearings out of the alternator.
since my replacement part was all rusted i decided to spray all the covers.
while everything (besides the engine) was out i high pressured the whole bay.
ive taken out my fuel pump. played with the rod (i included this because i read that it needs to be properly aligned)
i put plastic bags over the dizzy,

Update* I forgot to mention it shoots flames from the carbi ( with the filter off) and shoots from the exhaust side
i hope this is enough information for someone to help me.

thanks in advance

[Rusty's Uncle]

Is the air filter clogged & are the gaskets and spacer at the base of the carb OK and the carb properly tightened ?

[kennnnny]

I'm uncertain if the filter is blocked but I have tried running he car without the filter and it runs the same with, I hear a deep sounding note coming from the filter, it also backfires because I keep pumping the revs

[ratwing]

Don't know if this'll help but try blowing down the petrol pipe from the pump to the tank to see if its blocked, mine was and was a bit like yours - ran better on choke and died under load.

[kennnnny]

Update, I took off the carbi (again) this time dismantled it put a thin wire through all the holes drained it all out, now it drives better, the next day I played with the mixture and it's playing up again.

I will try blowing through all the hoses with the air compressor, cheers

[KAL SPL]

Is your earth strap from body to engine in tact ?

[kennnnny]

Yes thee earth strap is well grounded.
The next thing I found was charcoal in the bowl, so there must be charcoal in my fuel system sucking up from the canister.
I'm going to drop the tank tonight and find out

[eben80]

Hmmm... I'm no expert, I've owned mine for just under a month, but I have found that with cold start on choke fully open, it does want to die when you hit the gas. If you stroke it gently the revs pick up on mine.

I normally only have the choke open for about 2 minutes and then I close it because the hesitation with it on is a bit annoying.

I don't know if it is normal behavior but in my head I put it down to the fact that the carb doesn't have an accelerator-pump so it leans out momentarily when you press the gas suddenly.....

[kennnnny]

Hmmm... I'm no expert, I've owned mine for just under a month, but I have found that with cold start on choke fully open, it does want to die when you hit the gas. If you stroke it gently the revs pick up on mine.

I normally only have the choke open for about 2 minutes and then I close it because the hesitation with it on is a bit annoying.

I don't know if it is normal behavior but in my head I put it down to the fact that the carb doesn't have an accelerator-pump so it leans out momentarily when you press the gas suddenly.....

I know what you mean by this, it used to ve like that but even with 10 mins of "warming up" its still the same,

On another note, I've dropped my petrol tank and just found heaps of rust particles and even the tank is minorly rusted, should I try to replace the tank or get it professionally cleaned out or is this a "old car thing"?

[edessex]

Its an old car thing, but its best if you can clean it out, saves blocked fuel filters (if you have one fitted) & carbs.

'Frost' do a petrol tank cleaning and repair kit, bit steep, but well worth the money.  My brother did it to an old motorbike tank (the tank was part of the frame, as he couldn't just replace it).

http://www.frost.co.uk/automotive-tanks-products/por15-car-tank-repair-kit.html