A tuk sound in cng switch?

[shqamar]

bloody hell u are a man of knowledge cloud100 though i didnt get a word of what u just write about auto choke please try to explain in urdu or in simple words bhai jaan lol thanks

[cloud100]

hehe
bro i explained the position what actually the auto choke is. havnt explained the working yet bro,but i'll give the details tomorow InshAllah about the working and its placement cz subha office na

[shqamar]

sleep well cloud100 and explain me that pumping of accelator theory aswell is it good or bad night .

[Sharabhi]

After heard about this word pumping i just thought about black eyes peas song "pump it" Try to pump your accelerator while listening this song:P

(I know that this is offtopic reply which is not acceptable, but bhailog zindagi mei maaza nahi toh jeena nahi)

[shqamar]

haha sharabi lets pray mods wont ban us for that word i would refrain it but on a serious note can u explain me what my mechanic was telling me that on cng u need to push your paddle before starting on cng and it will gives u quick start but on petrol u dont because it will make your car over on petrol .

[cloud100]

hahaha good 1:) khair bro basically when u pum the gas pedal/accelerator the gas flows in. cz it auto chokesystem u dont have a manual choke lever like in mehran or fx which u can pull out and extra fuel gets to ur carburator.in auto choke cars u press the gas pedal 2-3 times to get the gas in the carby or throttle body in efi/epi/fsi cars
when u are having more gas it lights up early as compared to ur normal starting basically this happens in cold weather so that gas burns up easily and quickly and the temprature guage in the auto choke system could go at normal temp from the cold temprature in result of which the car gets to idle state othrwise if the engine is cold v all know what happens.
this pumping is not done very excessivly cz if u do so then excessive gas enters into d kit and when the car is started and is in running condition u get to hear a reverb like sound from the kit like mmmmmmmmmmmm mmmmmmmmm mmmmmmmm.
this pumping is not done in summers cz the density of the gas is a bit low as compared to winters plus the engine is already at warm temp so it cranks up at half a self.if u do the pumping then u'll again get excessive gas into the kit and that above sound will get birth.this excess of gas into the kit and then high flow to carb is commonly called gas over by some of our local mechnics.

[lotus]

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[shqamar]

very informative indeed cloud100 i am a fan of your knowledge from now on right that ask me another question i am pasting one of your last line to let u understand my question more

(it cranks up at half a self.if u do the pumping then u'll again get excessive gas into the kit and that above sound will get birth.this excess of gas into the kit and then high flow to carb is commonly called gas over by some of our local mechnics. )

now thats what happen to my car it might be because i pump it excessively before starting my car as u had mentioned before but it doesnt happen when car is started and in running state it happens when i actually about to start my car it takes half self and stop there and than i have to take another self to start my car now my question is if i dont pump my car it takes 2 self to start so it takes long to start but if i pump it , it will creates that half self cranks noise now i will only pump it a bit as u suggested and see the result but do we have to pump it or should we do it with out pumping and let the car takes 2 self who cares ? but what if that half self crank sound still comes which happens to me quiet often bear in mind i just replace my self garaian and the auto electrician said its working perfectly so self is fine , does that means my idle speed adjuster needs to lower the gas ? sorry to ask so many question but i really want to clear this issue once for an all .
regards

[Proverbial_Slang]

. An automatic choke system for a carburetor,
comprising: a wax-type temperature sensing section attached to an engine; and an output section providing a connection between the temperature sensing section and a choke valve of the carburetor, and operated to open the choke valve in response to heat receiving operation of the temperature sensing section, wherein the temperature sensing section includes: a bottomed cylindricalhousing attached to the engine with its bottom portion directed to a high-temperature portion of the engine; a bottomed movable cylinder; a stationary piston slidably supported in the movable cylinder and having one end protruding out of the movablecylinder; a wax contained in the movable cylinder in a sealed manner, and causing the movable cylinder and the stationary piston to move relative to each other in an axial direction; and a return spring urging the movable cylinder and the stationarypiston in a direction to compress the wax, the movable cylinder being slidably housed in the housing in a state in which an outer end of the stationary piston abuts against an inner surface of the bottom portion of the housing, the output section beingconnected to the movable cylinder.

Bro people are being excessively impressed by ur "knowledge". Please also post the website from where u copied and then pasted here...or should I do that for you? It is ethical to always post the source of your information when you post it somewhere.

Here is the link which you probably googled before copying and pasting:

Automatic choke system for carburetor - US Patent 7128309 Claims

Matches word for word! Happy surfing.

[Proverbial_Slang]

hahaha good 1:) khair bro basically when u pum the gas pedal/accelerator the gas flows in. cz it auto chokesystem u dont have a manual choke lever like in mehran or fx which u can pull out and extra fuel gets to ur carburator.in auto choke cars u press the gas pedal 2-3 times to get the gas in the carby or throttle body in efi/epi/fsi cars
when u are having more gas it lights up early as compared to ur normal starting basically this happens in cold weather so that gas burns up easily and quickly and the temprature guage in the auto choke system could go at normal temp from the cold temprature in result of which the car gets to idle state othrwise if the engine is cold v all know what happens.
this pumping is not done very excessivly cz if u do so then excessive gas enters into d kit and when the car is started and is in running condition u get to hear a reverb like sound from the kit like mmmmmmmmmmmm mmmmmmmmm mmmmmmmm.
this pumping is not done in summers cz the density of the gas is a bit low as compared to winters plus the engine is already at warm temp so it cranks up at half a self.if u do the pumping then u'll again get excessive gas into the kit and that above sound will get birth.this excess of gas into the kit and then high flow to carb is commonly called gas over by some of our local mechnics.

Sorry Cloud100, but I have to disagree with you simply because ur theory does not incorporate basic physics. Let me explain why:

1- CNG or natural gas, will never go down the carburettor on its own whether the throttle butterfly is open or not. It is simply lighter than air and will always rise. However, if you crank the engine, and keep the accelerator pedal depressed, the engine will suck in the gas. Once again, pumping the gas pedal before cranking the engine will not help much. Pumping while cranking the engine will help.

2- I do not know which "reverb" sound you are mentioning, but it is not produced because of excessive CNG going into the engine. If excessive gas goes in, it will stall the engine and it will shut down.

3- Excessive pumping on CNG will not make the car "over" as it will not fill up the barrels of the carburettor and will disperse as soon as you stop cranking the engine and take your foot off the gas pedal.

Hope this helps.
Peace!

[Proverbial_Slang]

very informative indeed cloud100 i am a fan of your knowledge from now on right that ask me another question i am pasting one of your last line to let u understand my question more

(it cranks up at half a self.if u do the pumping then u'll again get excessive gas into the kit and that above sound will get birth.this excess of gas into the kit and then high flow to carb is commonly called gas over by some of our local mechnics. )

now thats what happen to my car it might be because i pump it excessively before starting my car as u had mentioned before but it doesnt happen when car is started and in running state it happens when i actually about to start my car it takes half self and stop there and than i have to take another self to start my car now my question is if i dont pump my car it takes 2 self to start so it takes long to start but if i pump it , it will creates that half self cranks noise now i will only pump it a bit as u suggested and see the result but do we have to pump it or should we do it with out pumping and let the car takes 2 self who cares ? but what if that half self crank sound still comes which happens to me quiet often bear in mind i just replace my self garaian and the auto electrician said its working perfectly so self is fine , does that means my idle speed adjuster needs to lower the gas ? sorry to ask so many question but i really want to clear this issue once for an all .
regards

To answer your query, a perfectly, no... well-tuned car on CNG should start without any pumping. However, in winters, just depressing the gas pedal a little bit while cranking the engine will help. It should idle properly once the engine gets to a higher temperature. Since you have a Cultus with auto choke, it should have a stable idle a few seconds after it is started on CNG.

Hope this helps.

[shqamar]

hey proverbial _slang thanks for the detail reply and cmon atleast we should give cloud100 appreciation for giving his time for googling it for us anyways back to your reply can u simply tell me what causes the half self crank noise and what is the remedy for that also when u say well tuned on cng does it means it will start half self during the day with out pressing the paddle ? mine starts in 2 self is it normal ? people use to claim there car starts half self all day mine takes 2 self when engine is cold please enlightened these question of mine thanks in advance .

[cloud100]

now thats what happen to my car it might be because i pump it excessively before starting my car as u had mentioned before but it doesnt happen when car is started and in running state it happens when i actually about to start my car it takes half self and stop there and than i have to take another self to start my car now my question is if i dont pump my car it takes 2 self to start so it takes long to start but if i pump it , it will creates that half self cranks noise now i will only pump it a bit as u suggested and see the result but do we have to pump it or should we do it with out pumping and let the car takes 2 self who cares ? but what if that half self crank sound still comes which happens to me quiet often bear in mind i just replace my self garaian and the auto electrician said its working perfectly so self is fine , does that means my idle speed adjuster needs to lower the gas ? sorry to ask so many question but i really want to clear this issue once for an all .
regards

@shqamar
bro the annoying sound u get at the start and it stays for a while and u get it when u accelerate the car is due the excessive pumping before u crank.
ur ryt that if u dont pump the pedal it would take a longer self to start up this actually does happens.And this sound thing does happen due to excessive gas that flows in.
and it only comes when u start cold in the morning .
it does not come during the day time cz ur car already starts up at half crank so u dont need to pump during the day time.
this state is normal its nothing wrong with ur self/ignition.
my bro's margalla takes only 2-3 pumps of the accelerator pedal and takes around a few secs to start in the cold weather same thing goes with my friend's cultus.if u pump it more like 3-4 times then that sound comes up again.
ur car as u just mentioned takes 2selfs to start when cold is normal cz cultus,margalla do the same u can minimise this by just pumping 2-3 times b4 cranking and just 1 or 2 times while cranking and u wont be getting that but if u still get it u can decrease the pumping accordingly

[cloud100]

@proverbial slang bro i never meant intentionally to impress folks with my lil knowledge MashAllah ur like way lot knowledgable and experienced at the same time ur elder then me aswell.
i just replied the query in copy paste so that other people who see it also get an idea about the same questions regarding about the source as per ur kind request i'll surely post the link aswell next time if i copy paste np
and the thing u explained is ryt but the Reverb sound i am talking about is real annoying

originally posted by Shqamar

now thats what happen to my car it might be because i pump it excessively before starting my car as u had mentioned before but it doesnt happen when car is started and in running state it happens

if u have pumped the gas pedal 2 or 3 times before the crank and if u are still pumping the gas pedal to the floor or even midway to the floor still that reverb sound would come,it commonly happens in mehran,fx,khyber,alto,cultus(carby),alto,margalla.

Regards!

[shqamar]

very well explain again cloud100 thanks so the verdict is we dont need to push our pedal excessively before starting the car we can just push it when we are switching our car ignition on and that will be fine , just last thing i need to clear is what are the conditions we need to check for a good start when i mean good starts i mean car starts on half self during the day with out pushing the pedal i often saw people old cars doing that and some time new cars dont do that like mine takes 2 self to starts when engine is cold i can live with 2 self not a problem i am just curious to know the reason why some cars take half self to start and some takes 2 self to start must be some reason behind , battery is fairly new , self is serviced and working properly , checked all coils they are fine , ask auto electrician he said u dont need relay its fine but he reckons when this is the case its mainly a current fault u dont get enough current some how so please share your knowledge on this issue thanks in advance .
regards

[cloud100]

@shqamar
bro did u get ur ignition coil checked? cz sometimes when its getting weak thn u face such long starts.

[shqamar]

thanks cloud100 i will get my ignition coil checked tommarow thats the only thing i left , battery is new , battery wired all rapped up , terminals are fine , just to make sure i will go and check my ignition coil , point in distributor , bush in ignition switch and hope that will solve my problem , when we say ignition coil does that needs ignition opens and check i mean is it a big big work or needs half an hour and how much those things roughly cost me as in labour ?

[Proverbial_Slang]

@proverbial slang bro i never meant intentionally to impress folks with my lil knowledge MashAllah ur like way lot knowledgable and experienced at the same time ur elder then me aswell.
i just replied the query in copy paste so that other people who see it also get an idea about the same questions regarding about the source as per ur kind request i'll surely post the link aswell next time if i copy paste np
and the thing u explained is ryt but the Reverb sound i am talking about is real annoying

if u have pumped the gas pedal 2 or 3 times before the crank and if u are still pumping the gas pedal to the floor or even midway to the floor still that reverb sound would come,it commonly happens in mehran,fx,khyber,alto,cultus(carby),alto,margalla.

Regards!

No sweat bro :). Take care and have a good time at Pakwheels. About that sound, the only thing I can think of could be the fuel pump.

Peace!

[cloud100]

checking out with ignition bush wgaira is along time thingi ur mechanic would take around 1-2hrs cz all the mechanics are in a habit of opening ur car and getting on to some other project and the labour wgaira varies from mechanic to mechanic and like i tld u in pm go to an elctrician for ignition wgaira.

[cloud100]

@proverbial_slang
naa sir gee if its a fuel pump then it should also create the same sound on petrol aswell but the sound only comes from gas kit and unless and until u dont pump it excessively on gas before and during the crank u dont get that sound