Chug Chug
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- Posts: 111
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- Car(s): 1.6 Daily Driver
- Location: Ireland
Chug Chug
Hi Friends,
I'm having a spot of bother with a 1.6 laser. She's acting funny when I push the engine a bit during acceleration. If I accelerate slowly and smoothly, then all is well, but if I put the foot down, the car kind of 'chugs'. If feels like its skipping a firing or something, like it's stalling for a second. I ease off and all is well.
Is it being starved of air? I changed the ratio on the carb a while back, and it was going fine for a good few weeks, but this has started recently. Any ideas? I's particularly bad when going up inclines or hills. I have to go real slow and keep the acceleration curve way down.
What might be going on?
Thanks in advance,
Billy
I'm having a spot of bother with a 1.6 laser. She's acting funny when I push the engine a bit during acceleration. If I accelerate slowly and smoothly, then all is well, but if I put the foot down, the car kind of 'chugs'. If feels like its skipping a firing or something, like it's stalling for a second. I ease off and all is well.
Is it being starved of air? I changed the ratio on the carb a while back, and it was going fine for a good few weeks, but this has started recently. Any ideas? I's particularly bad when going up inclines or hills. I have to go real slow and keep the acceleration curve way down.
What might be going on?
Thanks in advance,
Billy
- VitinhoMF
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Re: Chug Chug
From what you said it seems to be related to either the accelerator pump jet or the accelerator pump diaphragm. Maybe the accelerator pump jet isnt big enough now and you might want to try a bigger one, wich can be bought here:
http://www.dellorto.co.uk/merchandise/p ... ctionID=58
Or it could be the diaphragm not functioning and if thats the problem you just have to replace it. It can also be bought on the above link. If the problem isnt the carb than i dont know what it could be and someone else will.
But if you say you changed the ratio, have you tried changing it back to how it was to see if it goes better? What carb is it?
http://www.dellorto.co.uk/merchandise/p ... ctionID=58
Or it could be the diaphragm not functioning and if thats the problem you just have to replace it. It can also be bought on the above link. If the problem isnt the carb than i dont know what it could be and someone else will.
But if you say you changed the ratio, have you tried changing it back to how it was to see if it goes better? What carb is it?
Capri MK2 2.0 - 99% of the time in the garage being fixed or modified and 1% on the road....But what a great 1%.......!!!!!!!
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Re: Chug Chug
I haven't changed it back because it was so low it was cutting out at red lights, so either way I can't go back to what it used to be. It's an old VV.
- Peter-S
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Re: Chug Chug
If the fuelling has been OK then I'm going to guess it probably still is and go with electrics. Could be a plug starting to break down or the condensor going west. I'd change those and see if it improves.
The plug you could probably check when it starts missing. Pull over and take them out. If one looks wet then its faulty.
The plug you could probably check when it starts missing. Pull over and take them out. If one looks wet then its faulty.
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Re: Chug Chug
I put in electronic ignition recently, that bypasses the condensor, doesn't it?
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Re: Chug Chug
Also, would a mix too rich cause blacking plugs that would lead to this problem?
Re: Chug Chug
So it's not liking hills, high revs and load? I'm leaning towards electrical too.
Could be an air leak I suppose.. split hose only making itself known at high revs as the vacuum increases..
Yes rich mixture can carbon up the plugs, but they need to be really, really black and coked up before they'd refuse to spark. Take them out and see if they spark against the block whilst turning on the starter.. hold them in some good quality non-conductive substance though!
Could be an air leak I suppose.. split hose only making itself known at high revs as the vacuum increases..
Yes rich mixture can carbon up the plugs, but they need to be really, really black and coked up before they'd refuse to spark. Take them out and see if they spark against the block whilst turning on the starter.. hold them in some good quality non-conductive substance though!
I'm the one who leaves all those shoes in the carriageway.
- VitinhoMF
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Re: Chug Chug
Oh its a VV carb. Than i supose its not related to jetting. But could still be ralated to the diaphragm i think..(Dont know that carb). It could also be a vacum leak as said.
I dont think that symptom indicates a rich mixture. I think that if it kind of stalls with foot dont, the mixture is getting lean in that moment, not having fuel enough to compensate the extra air when you open the throttle.
I dont think that symptom indicates a rich mixture. I think that if it kind of stalls with foot dont, the mixture is getting lean in that moment, not having fuel enough to compensate the extra air when you open the throttle.
Capri MK2 2.0 - 99% of the time in the garage being fixed or modified and 1% on the road....But what a great 1%.......!!!!!!!
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Re: Chug Chug
Won't start at all now. Mightn't be getting a spark. On my own so can't check properly.
Re: Chug Chug
my experiences with vv carbs,is chuck em in the bin and fit a webber!bloody useles things.i worked at a ford main dealer in the late 80s,early 90s there was no end of trouble with them on cortinas,escorts and sierras
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Re: Chug Chug
She's booked in for a transplant tomorrow. Installing a nice weber 32/36 and K&N filter.
Hopefully that'll do the trick.
Hopefully that'll do the trick.
- VitinhoMF
- Posts: 282
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- Location: Portugal
Re: Chug Chug
And what a useful transplant..That will probably do the trick. I never had a VV carb but, all around the internet, the common opinion about it is "Dump that!!!"..
Capri MK2 2.0 - 99% of the time in the garage being fixed or modified and 1% on the road....But what a great 1%.......!!!!!!!