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Author Topic: How Does A Carburettor Work?  (Read 432 times)

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Offline Kamanya

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How Does A Carburettor Work?
« on: June 30, 2021, 07:25:24 pm »
They're a dark art and if you ever wondered exactly how they work...

Somedays, life's like a middlemannetjie.
 
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Offline 2StrokeDan

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Re: How Does A Carburettor Work?
« Reply #1 on: June 30, 2021, 07:32:20 pm »
Great video of an amazing piece of apparatus.

No need for a battery for a carburettor to work.

No need for a pump on a motorcycle.



 
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Online Gerrard

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Re: How Does A Carburettor Work?
« Reply #2 on: June 30, 2021, 07:50:59 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "
...dis nooit te laat om n happy childhood te he nie !

Build a sidecar they said. It will be fun they said. Ja-nee !
 

Offline 2StrokeDan

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Re: How Does A Carburettor Work?
« Reply #3 on: June 30, 2021, 08:01:32 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "

Must have been model planes?
 

Online Gerrard

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Re: How Does A Carburettor Work?
« Reply #4 on: June 30, 2021, 08:06:13 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "

Must have been model planes?

 :thumleft: Husky's (Webra) and some 4-stroke mowers. Weedeaters still use them.
...dis nooit te laat om n happy childhood te he nie !

Build a sidecar they said. It will be fun they said. Ja-nee !
 

Offline RobC

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Re: How Does A Carburettor Work?
« Reply #5 on: June 30, 2021, 08:55:18 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "

Must have been model planes?

 :thumleft: Husky's (Webra) and some 4-stroke mowers. Weedeaters still use them.
Walbro... not Webra... AFAIK so do most chain saws... a bitch when a diaphragm leaks, used to start off by fitting a new one when a client says "hy loop nie lekker nie". :sip:
 

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Re: How Does A Carburettor Work?
« Reply #6 on: June 30, 2021, 09:05:32 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "

Must have been model planes?

 :thumleft: Husky's (Webra) and some 4-stroke mowers. Weedeaters still use them.
Walbro... not Webra... AFAIK so do most chain saws... a bitch when a diaphragm leaks, used to start off by fitting a new one when a client says "hy loop nie lekker nie". :sip:

Husky chainsaw motor with Walbro carb, sold as a 35cc Webra Bully for model aeroplanes. Jy moet mooi lees.
...dis nooit te laat om n happy childhood te he nie !

Build a sidecar they said. It will be fun they said. Ja-nee !
 
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Offline 2StrokeDan

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Re: How Does A Carburettor Work?
« Reply #7 on: June 30, 2021, 10:03:07 pm »
Years ago I used engines with the old Walbro carbs. First line in the service manual "Take this carburetor to a qualified mechanic to service "

Must have been model planes?

 :thumleft: Husky's (Webra) and some 4-stroke mowers. Weedeaters still use them.

And used a lot in the radio controlled plane world at some stage. Not sure whether it was dedicated aero engines, or whether flyers simply used the carbs, or complete engines from garden appliances.
 

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Re: How Does A Carburettor Work?
« Reply #8 on: June 30, 2021, 10:03:08 pm »
It's amazing how the camera can catch so many frames in such a short time - really shows you how slow the world is compared to the speed of light.

A great video find there, Andrew .........................  :thumleft:
Don't let fear hold you back ..... take it with you!
 

Offline Kamanya

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Re: How Does A Carburettor Work?
« Reply #9 on: July 01, 2021, 08:38:13 am »
Like most of the best inventions so elegantly simple yet devilishly clever. I am sure the story of how it was invented and all the iterations needed to get it to work must have been quite something. Especially since they would have had to have been invented in conjunction with all the invention going on to get internal combustion engines working too!
Somedays, life's like a middlemannetjie.
 
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Re: How Does A Carburettor Work?
« Reply #10 on: July 01, 2021, 09:47:53 am »
really great video thanks for sharing
 

Offline RobC

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Re: How Does A Carburettor Work?
« Reply #11 on: July 01, 2021, 10:10:09 am »
Like most of the best inventions so elegantly simple yet devilishly clever. I am sure the story of how it was invented and all the iterations needed to get it to work must have been quite something. Especially since they would have had to have been invented in conjunction with all the invention going on to get internal combustion engines working too!
From Wiki...
The first carburetor was invented by Samuel Morey in 1826. The first person to patent a carburetor for use in a petroleum engine was Siegfried Marcus with his 6 July 1872 patent for a device that mixes fuel with air.

A carburetor was among the early patents by Karl Benz (1888)[7] as he developed internal combustion engines and their components.[8]

Early carburetors were of the surface type, in which air is combined with fuel by passing over the surface of gasoline.[9]
 

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Re: How Does A Carburettor Work?
« Reply #12 on: July 01, 2021, 01:54:49 pm »
Nice.....I quite enjoy this guys video's
Nou kyk nou net waar het daai hond loop l!
 

Offline Roadhawg

Re: How Does A Carburettor Work?
« Reply #13 on: July 01, 2021, 02:00:56 pm »
After setting up a Golf on regular carbs, Side Draft webbers and Aftermarket fuel injection...


...Give me Fuel Injection every day of the week and twice on Sundays.  There's a reason we don't ride horses anymore and there's a reason everything is FI now.
Stu
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Offline 2StrokeDan

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Re: How Does A Carburettor Work?
« Reply #14 on: July 01, 2021, 02:08:34 pm »
After setting up a Golf on regular carbs, Side Draft webbers and Aftermarket fuel injection...


...Give me Fuel Injection every day of the week and twice on Sundays.  There's a reason we don't ride horses anymore and there's a reason everything is FI now.

I jetted a CBX Honda six for a friend, years ago, who fitted a 4 into 1, and you need to loosen engine mountings for the engine to tilt forward to get those carbs out. :eek7:

Also, if they can get TPI reliable as carbs, it would be so much better, as you do not have the 2stroke rejetting crap.

BUT.....do not knock an idea that carried the world for well over a 100 years. :ricky: Viva lo carburettor, Viva!!
 
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Offline Roadhawg

Re: How Does A Carburettor Work?
« Reply #15 on: July 01, 2021, 02:13:00 pm »
After setting up a Golf on regular carbs, Side Draft webbers and Aftermarket fuel injection...


...Give me Fuel Injection every day of the week and twice on Sundays.  There's a reason we don't ride horses anymore and there's a reason everything is FI now.

I jetted a CBX Honda six for a friend, years ago, who fitted a 4 into 1, and you need to loosen engine mountings for the engine to tilt forward to get those carbs out. :eek7:

Also, if they can get TPI reliable as carbs, it would be so much better, as you do not have the 2stroke rejetting crap.

BUT.....do not knock an idea that carried the world for well over a 100 years. :ricky: Viva lo carburettor, Viva!!

Look, I have respect for our history, but also know that things move forward.   Electric vehicles will make all of this look as silly as cavemen hitting each other in the heads with rocks soon enough.

I LOVED the sound of Sidedrafts coughing and slurping and the instant response. But the car was so much more useable once I got the FI in.   

For certain applications though, sure, carbs still make sense.  But less and less I think.
Stu
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Re: How Does A Carburettor Work?
« Reply #16 on: July 01, 2021, 03:42:56 pm »
I can't remember having to tilt the Cbx motor forward but it is close on to 25 years ago that I worked on the late Jeff Matthysens bike .
 

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Re: How Does A Carburettor Work?
« Reply #17 on: July 01, 2021, 04:22:14 pm »
Cool vid, thanks for posting
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Re: How Does A Carburettor Work?
« Reply #18 on: July 01, 2021, 05:43:54 pm »
After setting up a Golf on regular carbs, Side Draft webbers and Aftermarket fuel injection...


...Give me Fuel Injection every day of the week and twice on Sundays.  There's a reason we don't ride horses anymore and there's a reason everything is FI now.

I jetted a CBX Honda six for a friend, years ago, who fitted a 4 into 1, and you need to loosen engine mountings for the engine to tilt forward to get those carbs out. :eek7:

Also, if they can get TPI reliable as carbs, it would be so much better, as you do not have the 2stroke rejetting crap.

BUT.....do not knock an idea that carried the world for well over a 100 years. :ricky: Viva lo carburettor, Viva!!

Look, I have respect for our history, but also know that things move forward.   Electric vehicles will make all of this look as silly as cavemen hitting each other in the heads with rocks soon enough.

I LOVED the sound of Sidedrafts coughing and slurping and the instant response. But the car was so much more useable once I got the FI in.   

For certain applications though, sure, carbs still make sense.  But less and less I think.
But also boring, watched a video on Youtube where the guy asked if Tesla will be the brand to kill car culture
Little by little, one travels far
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