Technical Tipo 1.6 Carb Ignition Problem

[Trancendental]

OK my Tipo is being a bit gay this winter, I dont know if its a winter thing or a K&N Filter thing because last winter it was fine when I had the normal Airbox.

When I start my car it starts first time but it IMMEDIATELY switches off (Stalls) Power lights are on and everything.

e.g the starter motor don't turn for ages, it turns on AND CUTS OFF (Stalls) straight away.

when it does get started its ok... then it will stall after a few seconds, slowly goes quiet then switches off.

If I press the Accelerator to the floor it sounds like its sucking in Air, the revs climb a bit then they drop suddenly and it stalls.

If I press the Accelerator softley the revs climb nicely, then if I press the accelerator some more the revs climb more then if I press the Accelerator to the floor the revs go through the roof and it stays on.

So now when I start my car in needs Technique. I gently put my foot on the Accelerator and turn it on and its ok but if I press too much or not at all it doesn't.

When its cold and I drive it I also have to give it gentle acceleration or it tries to stall but can't because its moving too fast to stall so sometimes I get jerks or one BIG flat spot for about 5 seconds before it begins to accelerate.

Once its warmed up its fine and will start properly after its been switched off and will accelerate like a mofo and put me bum further back in the seat but when its cold it just can't be bothered it seems.

Any Ideas as to what it could be? I'm guessing a Carburettor issue but I'm gonna ask here cause I don't know.

Mechanical Fuel Pump was changed about a year ago and last time I had a Fuel Pump problem it was a problem all the time no matter what the engine temp was.

Thanks

 

[sumplug]

OK my Tipo is being a bit gay this winter, I dont know if its a winter thing or a K&N Filter thing because last winter it was fine when I had the normal Airbox.

When I start my car it starts first time but it IMMEDIATELY switches off (Stalls) Power lights are on and everything.

e.g the starter motor don't turn for ages, it turns on AND CUTS OFF (Stalls) straight away.

when it does get started its ok... then it will stall after a few seconds, slowly goes quiet then switches off.

If I press the Accelerator to the floor it sounds like its sucking in Air, the revs climb a bit then they drop suddenly and it stalls.

If I press the Accelerator softley the revs climb nicely, then if I press the accelerator some more the revs climb more then if I press the Accelerator to the floor the revs go through the roof and it stays on.

So now when I start my car in needs Technique. I gently put my foot on the Accelerator and turn it on and its ok but if I press too much or not at all it doesn't.

When its cold and I drive it I also have to give it gentle acceleration or it tries to stall but can't because its moving too fast to stall so sometimes I get jerks or one BIG flat spot for about 5 seconds before it begins to accelerate.

Once its warmed up its fine and will start properly after its been switched off and will accelerate like a mofo and put me bum further back in the seat but when its cold it just can't be bothered it seems.

Any Ideas as to what it could be? I'm guessing a Carburettor issue but I'm gonna ask here cause I don't know.

Mechanical Fuel Pump was changed about a year ago and last time I had a Fuel Pump problem it was a problem all the time no matter what the engine temp was.

Thanks

your choke is not working.

 

[Trancendental]

No the Choke works... but if I pull it out too much too quickley the car stalls I have to pull this out Gradually for the idle to be higher and for it not to stall.

Like I said one the car is warm everything is fine but if I "Give it Some" when its cold it has none of it and stalls.

The Choke still brings the revs up to 2500 Revs when pulled out all the way, but I have to do it slowly (I don't warm up at them revolutions I find it excessive)

 

[sumplug]

No the Choke works... but if I pull it out too much too quickley the car stalls I have to pull this out Gradually for the idle to be higher and for it not to stall.

Like I said one the car is warm everything is fine but if I "Give it Some" when its cold it has none of it and stalls.

The Choke still brings the revs up to 2500 Revs when pulled out all the way, but I have to do it slowly (I don't warm up at them revolutions I find it excessive)

the fact you say its fine once warm points to the choke. i would look at the choke enrichment jets. this car is def a non injection? have you altered any setting on the carb? is the fast idle setting correct? is the mixture correct? the engine when cold is either over choking or starving of fuel. i think the carb needs looking at.

 

[Trancendental]

BEFORE it was fine when starting BUT thats because the Carburettor Seal was split and leaking air out of it.. or into it whichever way the air would travel but the split caused it to lose power and stall anytime I slowed down to stop.

This was fixed and it was tuned up to make sure the CO levels were back to normal a couple months ago which I believe would sort out any Mixture problems.

It was fine until the weather started getting real cold, it used to start first time when I had the Choke out all the way THEN it stopped starting with the choke out and now I have to do me accel pedal down a wee bit techique.

I'll look into the Enrichment Jets and the Fast Idle settings, you can check the vast Idle by plugging the Fast Idle Vacume into to normal Idle Vacum slot can't you?

The car has a Carburettor in it but some have told me that its a "Single Point Injection" I presumed they were the same thing.

 

[sumplug]

BEFORE it was fine when starting BUT thats because the Carburettor Seal was split and leaking air out of it.. or into it whichever way the air would travel but the split caused it to lose power and stall anytime I slowed down to stop.

This was fixed and it was tuned up to make sure the CO levels were back to normal a couple months ago which I believe would sort out any Mixture problems.

It was fine until the weather started getting real cold, it used to start first time when I had the Choke out all the way THEN it stopped starting with the choke out and now I have to do me accel pedal down a wee bit techique.

I'll look into the Enrichment Jets and the Fast Idle settings, you can check the vast Idle by plugging the Fast Idle Vacume into to normal Idle Vacum slot can't you?

The car has a Carburettor in it but some have told me that its a "Single Point Injection" I presumed they were the same thing.

what yr is the car and has it got a cat fitted?

 

[Trancendental]

1992 and Ive been told it don't.

Got a silencer in the middle of the pipe which looks like a back box... except its not at the back of the exhaust and the there is the back box which I've been told contains no cat stuff.

 

[sumplug]

1992 and Ive been told it don't.

Got a silencer in the middle of the pipe which looks like a back box... except its not at the back of the exhaust and the there is the back box which I've been told contains no cat stuff.

right. its a carb. i think the fast idle and choke need looking at.

 

[Trancendental]

Fixed this problem (not myself)

There was Oil in the Carb, Even though I have not touched the oil since the last time another garage had it, on the dipstick there was WAY TOO MUCH oil.

Had the oil removed and changed and the Oil Filter Changed and back to one key turn start

But I still have to wait forever before I can drive it without it jerking all over the place and even with my foot near enough to the floor getting it about 25mph.

When I put it to the floor its like something opens up and it shoots off like a rocket.

But this aint no computer game, if I don't wait for it to warm for at least 10mins up its either foot to the floor to move at Top Acceleration or not move anywhere

Any more ideas people?

I do have a K&N and no hot air feed.

 

[sumplug]

Fixed this problem (not myself)

There was Oil in the Carb, Even though I have not touched the oil since the last time another garage had it, on the dipstick there was WAY TOO MUCH oil.

Had the oil removed and changed and the Oil Filter Changed and back to one key turn start

But I still have to wait forever before I can drive it without it jerking all over the place and even with my foot near enough to the floor getting it about 25mph.

When I put it to the floor its like something opens up and it shoots off like a rocket.

But this aint no computer game, if I don't wait for it to warm for at least 10mins up its either foot to the floor to move at Top Acceleration or not move anywhere

Any more ideas people?

I do have a K&N and no hot air feed.

as i said the carb wants properly setting up for cold running.

 

[Trancendental]

as i said the carb wants properly setting up for cold running.

You can do that? I need to find a fookin Superman!

 

[sumplug]

You can do that? I need to find a fookin Superman!

i could set the carb up no problem. have you bought a haynes manual? basically tells you how to set the carb up. if the butterfly is not set correctly at fast idle[cold], the carb will malfunction when cold. also. it must be airtight cold as well at the flange.once fast idle is set, the mixture can be set.

 

[Trancendental]

I've got a Haynes.. but I don't have the required tools to check emmisions after I fiddle

 

[sumplug]

I've got a Haynes.. but I don't have the required tools to check emmisions after I fiddle

are you capable of setting the butterfly fast idle setting? if so, then once set, you set the mixture by first upping the idle upto about 1300-1500 revs. turn the mixture screw right in until the engine almost dies. then turn the mixture screw out counting each complete turn. when the engine note goes rough or does not increase in speed, turn back. count again. when engine speed drops right down, take the outward turns and in ward turns, and set in the middle. you are trying to find the fastest idle with the fewest turns outward. reduce the idle to about 800 - 900 revs. that is the carb set.

 

[Trancendental]

I did the Tuning followed your instructions plus the Haynes Manual.

Tipo Idles at 850rpm and sounds like its switched off I'm well proud of myself

But on further inspection of the Carb comparing pics from the Haynes Manual to my actual Carb, which are meant to be the same.. I found that there are a few Hoses and electrical Plugs either missing or disconnected...

What to do?

 

[maddogmorg]

BEFORE it was fine when starting BUT thats because the Carburettor Seal was split and leaking air out of it.. or into it whichever way the air would travel but the split caused it to lose power and stall anytime I slowed down to stop.

This was fixed and it was tuned up to make sure the CO levels were back to normal a couple months ago which I believe would sort out any Mixture problems.

how did you fix the carbuerttor seal fit a new one or something else? mine has a split gasket and if you spray something such as carb cleaner on it when engine is running you can rev it up!

 

[Trancendental]

how did you fix the carbuerttor seal fit a new one or something else? mine has a split gasket and if you spray something such as carb cleaner on it when engine is running you can rev it up!

Garage replaced gasket seal with a new one. Carb cleaner will not fix it, Carb cleaner is flammable, this is why you can rev the engine

 

[maddogmorg]

yeah i know i was cleaning the carb and thats when i noticed the seal had gone how mucho was it to sort out?

 

[Trancendental]

TBH I had something else done at the same time but you are looking at about 1 hour labour (or less) and then the cost of the part app £30 so you are looking at about £70

I was told it had to be done from the bottom of the car, I wasn't sure if I believed this statement after what I had read but it needed to be fixed immediately.

 

[maddogmorg]

went to Fiat on yesterday to find out how much the new gasket will cost and i got a shock!!! everyone told me it would be expensive but its costing me £2 to quote a certain Mr Dickinson its cheap as chips! almost litterally in some places!! !! i hope its the right part lol and i'll fit it myself hopefully, got me ol' Haynes manual handy if needs be and i got a few friends who are mechanics.