[DIY] Cleaning your throttle body

[D7zul]

Not quite the right place to ask but sounds like it might work. I don't think those mist generators run on AC? Or was it DC? I had a chat with Drexchan on this since he had the same idea as you. But the main problem he faced was powering the device. Apparently it would suck up a lot of power and negate the effects of the mod in the first place.

Anyway, let's talk PM since this is out of topic.

cc those PM to me

better yet.. start a new thread

 

[mike77kl]

ok, sorry for off topic. Now bk on topic, diy clean the TB.

Tomorrow i plan to go get myself a carb cleaner. May i know
whats the recommended brand and expected price?
There are dozen of brands on the shelf out there.

B4 this i got remove the airbox of my old Saga 12V then i saw the air filter
and i remove it as well, then i see an opening from the top of the carb.
Its an Aisan Variable Venturi with auto chock carb. So i just spray into the hole?
From there i cannot see the butterfly valve and it would give me a feeling i am
spraying at nothing.

 

[Izso]

Honestly - what I used to do with my old carbie was just spray it in with the engine running. Probably isn't the best way.

Anyone with a carb can advise?

 

[mike77kl]

Already bought the carb cleaner, brand 3M. The instruction says spray when engine off,
spray and leave it for 20 minutes. I have not try it yet. Now i worry i cant start the engine
afterwards due to heavy floods with big pieces of gunks that got loose and broke off.
It could be a thick 20 years old gunk i am dealing with.

Ok now one question, will the carb cleaner eat away seals and gaskets and make my carb
leaking? I plan to spray every time just b4 the engine oil changed coz i scare i might
contaminate the oil. Means every 5000km i be spraying the carb, i scare slowly it gets leaky.

 

[Izso]

Already bought the carb cleaner, brand 3M. The instruction says spray when engine off,
spray and leave it for 20 minutes. I have not try it yet. Now i worry i cant start the engine
afterwards due to heavy floods with big pieces of gunks that got loose and broke off.
It could be a thick 20 years old gunk i am dealing with.

Ok now one question, will the carb cleaner eat away seals and gaskets and make my carb
leaking? I plan to spray every time just b4 the engine oil changed coz i scare i might
contaminate the oil. Means every 5000km i be spraying the carb, i scare slowly it gets leaky.

It shouldn't.

 

[mike77kl]

Pls help me, my Saga cannot start after i spray the carb hole with 3M carb cleaner.

I just follow the instruction. It says off the engine, spray the carb hole and leave it
soak for 20 minutes then start the engine. But i crank for like 10 seconds non stop
and the engine wont turn. Then i let go and crank again for another 10 seconds
non stop and engine still wont run. I kept doin like this for 3-4 times still wont
start, pls help me!!

Luckily my battery is strong from a good charge coz i just balik kampung from
KL to Butterworth last nite and tot today holiday i want to clean the damn carb.
So i start the engine and drove the car to a nice padang where nobody is around
coz i scare to smoke up the place. Once i reach the padang, i shut off the engine
and start spraying like nobody business onto the carb. After spray, the carb hole
looks damn clean, and i let it soak for 20 minutes and then i went to start the engine
but it wont turn over, i kept cranking and the engine just wont come alive and run
on its own. Now my car is abandon at the padang, pls help. What is wrong with it man.

 

[tks84]

Alot of thng to check..can be disterbuter kot...spark plug wire connection loose..or rosak...
Usually i do it at home..off engine,spray till all look clean..let it soak a while..it will be hard to start at first cos the fume still in there...
Just wait a while more and try again...when start drive to empty road,remain engine on spray while pulling the trottle cable...then wack drag a bit ok liow...

 

[Izso]

Mike, check your plugs. Might be wet. Clean them and retry

 

[mike77kl]

I see the butterfly valve on my carb is not dirty at all since fuel always
drip on it and get it wet. So carb cleaner for me is no fun since there is
nothing to be clean and even i spray on the carb hole, i feel no difference.
Perhaps its already clean. So buying a carb cleaner and did the job, the
return is zero satisfaction.

I dun know doin the below is right or not.

To clean off carbon inside combustion chamber, i asked my wife to rev up
the engine to 2k rpm, then i remove the hose from the PCV valve and spray
carb cleaner into the hose so that the cleaner could get right into the intake
manifold after the carb. What unexpected is, when i spray the cleaner in,
the engine will rev itself higher though my wife is holding the throttle constant
at 2k rpm. I tot the engine would sputter and wanna die, but instead it rev up,
this effect is totally unlike the when spray onto carb, the engine would sputter.
And one more thing i found out is, if u dun rev the engine and let it idle, taking
off the hose from the PCV valve would stall the engine, i think maybe due to
massive air leak, but instead if u remove the PCV valve from the valve cover
with the hose still attached, the engine would still idle due to there is still some
restriction in the PCV valve, not like a free flow and massive air leak alike.

 

[amirmunzir]

thanks izso..is it possible to DIY this on satria neo?..surely this thing will fill up my weekend..

 

[Izso]

I see the butterfly valve on my carb is not dirty at all since fuel always
drip on it and get it wet. So carb cleaner for me is no fun since there is
nothing to be clean and even i spray on the carb hole, i feel no difference.
Perhaps its already clean. So buying a carb cleaner and did the job, the
return is zero satisfaction.

I dun know doin the below is right or not.

To clean off carbon inside combustion chamber, i asked my wife to rev up
the engine to 2k rpm, then i remove the hose from the PCV valve and spray
carb cleaner into the hose so that the cleaner could get right into the intake
manifold after the carb. What unexpected is, when i spray the cleaner in,
the engine will rev itself higher though my wife is holding the throttle constant
at 2k rpm. I tot the engine would sputter and wanna die, but instead it rev up,
this effect is totally unlike the when spray onto carb, the engine would sputter.
And one more thing i found out is, if u dun rev the engine and let it idle, taking
off the hose from the PCV valve would stall the engine, i think maybe due to
massive air leak, but instead if u remove the PCV valve from the valve cover
with the hose still attached, the engine would still idle due to there is still some
restriction in the PCV valve, not like a free flow and massive air leak alike.

I admire your courage to try things! And you're right, the will sputter but it's not going to die just because you yanked out the PCV. But I doubt cleaner sprayed into the hose will do much. I'm not a carbie head and when I owned one I wasn't very well versed with the carbie. Hopefully some carbie like Fred will come in and shed some light.

thanks izso..is it possible to DIY this on satria neo?..surely this thing will fill up my weekend..

Yes of course it's possible. Just need to know where your PCV is

 

[punk]

Hello bro izso,
for this diy, after cleaning the throttle body using petrol and fix back everything and finally start the car but the car timing lari..
During idle time,the timing was not stable..
Is it the same thing if we take out negative terminal of the battery to reset the ecu with reset at perodua??

 

[Izso]

Hello bro izso,
for this diy, after cleaning the throttle body using petrol and fix back everything and finally start the car but the car timing lari..
During idle time,the timing was not stable..
Is it the same thing if we take out negative terminal of the battery to reset the ecu with reset at perodua??

You always run a risk of upsetting the ISC motor in the TB, were you gentle with the cleaning? No sudden shakes or knocks? If yes then the ISC has been messed up. You just need to reset the ECU and clear the fault codes. I've tried taking out the battery but the result isn't the same as using the machine to reset the ECU.

 

[punk]

You always run a risk of upsetting the ISC motor in the TB, were you gentle with the cleaning? No sudden shakes or knocks? If yes then the ISC has been messed up. You just need to reset the ECU and clear the fault codes. I've tried taking out the battery but the result isn't the same as using the machine to reset the ECU.

i did accidently knock the tb and don't have the chance to take out the battery to test the result but being advised to reset at perodua..
thanks for the info..

 

[punk]

bro,if electronics type throttle body ,is it necessary to take out battery if wan diy clean it??

 

[Izso]

That's a good question. I've no idea! But I don't see any harm of pulling out the battery unless you have a piggy back or standalone. If yes then better not.

 

[calvint78]

my kelisa accelerator is like stuck when pressing, and i need to press hard. i suspect is my TB maybe got dirt, so i decide to diy clean TB.
anyway am using WD40, first am using tissue paper, spray to tissue paper and then wipe the butterfly and around the inner side. u will see ur white tissue paper become black like batu arang. as i do not remove out the TB, am using my little finger to squee in every corner of TB and clean it until i satisfied. after done test press the accelerator, wow! become smooth and few day later, my fuel consumption is more better. Am relieve and save some $$$ from goin to workshop being kena chop.
PRICELESSSSSS!!!!

 

[Izso]

But as a general rule, I don't recommend WD40 as the oil will still get sucked into the manifold eventually - not quite a good thing but not gonna kill you

 

[huakenny]

bro,if electronics type throttle body ,is it necessary to take out battery if wan diy clean it??

u cant open the tb wit ur fingers...it will just damage the tb

a fren of mine(mechanic) helping a customer clean his nissan x-trail....which he tot can use the same method....electronic type tb...he open the butterfly wit finger as usual...after clean and start the engine...

check engine light pop-on the dashboard and after diagnosed...the tb is gone. replaced the new one for customer. try to earn rm70 end up paid rm1xxx for the tb

 

[punk]

u cant open the tb wit ur fingers...it will just damage the tb

a fren of mine(mechanic) helping a customer clean his nissan x-trail....which he tot can use the same method....electronic type tb...he open the butterfly wit finger as usual...after clean and start the engine...

check engine light pop-on the dashboard and after diagnosed...the tb is gone. replaced the new one for customer. try to earn rm70 end up paid rm1xxx for the tb

Nice info bro..i didn't know that..
Lucky my TB still fine..