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Su Carb Heater ?

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#1 Yvan Delaserge

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Posted 08 February 2019 - 07:05 PM

Hi,
There is a clamp (1) around the vacuum chamber of the carb of my 1979 Mini 1000.It is connected by a piece of wire to a smaller clamp tied around a "lump " (2) on the carb flange.
Any idea about what this is supposed to be for ?
Also, there is a green wire connected to something inside the "lump".
What could this be for ?
Does anyone have the same components in his car?
Thanks in advance for the help.

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#2 cal844

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Posted 08 February 2019 - 08:47 PM

That does look like a carb heater, not really necessary

#3 A-Cell

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Posted 08 February 2019 - 08:56 PM

The intention is to speed the warm up of the the engine, and thereby reduce the emissions of CO when the ambient temperature is very low (well below zero). It was on the Swiss spec and the Canada spec minis.
When the choke is pulled out there is a switch on it that supplies powers to the 2 heating coils. One round the dash pot and one in the phenolic carb spacer.
The one in the spacer heats the mixture and the one around the dash heats the carb, thins the dashpot oil.

#4 A-Cell

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Posted 08 February 2019 - 09:00 PM

See this post, same question about functionality for a 1978 Canadian Mini.
http://www.theminifo...his-carb/page-2

#5 nicklouse

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Posted 08 February 2019 - 09:10 PM

some pics of your parts

U8VGxk2.jpg

VV7brBF.jpg

5JidUUB.jpg

 as mentioned above just there for cold weather emissions improvement.



#6 Yvan Delaserge

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Posted 09 February 2019 - 09:08 AM

Thank you very much for all the quick and effective answers!
This is a great forum. It is my first visit and certainly not the last.

#7 A-Cell

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Posted 09 February 2019 - 12:29 PM

You are welcome.

#8 Yvan Delaserge

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Posted 02 March 2019 - 09:44 AM

Hello again.
In my car, the heaters are not connected to the choke command. There is a green wire coming directly from the fuse box.
In the Haynes manual, the schematic shows that the heater is activated by a thermostat, which is probably located within the "lump" on the phenolic spacer.
I tested the phenolic spacer heater with an ohmmeter and found an infinite resistance, so I concluded the heater was bad. I will test it again putting an ice cube on it.





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