I Was Wondering If Anyone Can Tel Me What The Device Is I Circled On The Picture? What Is It For, And It Seems That It Must Get Constant 12volt?

What Is This And What Does It Do?

Thanx

Attached Thumbnails

 

Maybe a choke...

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

I DONT THINK IT IS CHOKE RELATED, AS THIS CARB HAS THE CHOKE ASS. ON THE SIDE, AND THIS CARB HAS THE WATER HEATED MIXTURE PISTON AS WELL. SO I DONT THINK IT IS A CHOKE, ANY OTHER SUGGESTIONS

Well I haven't picked up the 280S with a Solex so aside from that guess I haven't an idea.

Also, please turn off the caps lock.

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

Sorry about the caps. I think that this valve has something to do with float vent
Maybe M.B. Doc can shed some light on this

Maybe it's to compensate for idle when the A/C is on?

__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

that is a float chanber vent valve which only works under certain circumstances, for example when the choke is on

Thanx 280Sbenz, do you perhaps know, when the soleniod must get power and when it must be shut?

the car is a w123 280 euro 1979

M.B. DOC can u perhaps help me with this valve?

Thank you in advance

Solenoid for venting the float bowl (hesitation)...only on very late euro engines.....

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

i believe that the valve you have pictured is a shut off valve designed to prevent dieselling when the car is shut off.the wire going to it is power all the time when key turned on.now,this carb is junk.it is made of aluminum and as such IT WILL WARP causing you to believe that the gaskets have failed.it's best use is as fishing weight.company called J.A.M. engineering in california came up with direct replacement of modified holley[100 times better]easy fit even for novice.david poole european performance dallas tx 2149567007.

My erudite friend, DSP is correct.....it is an idle fuel/air circuit shut off valve.
Closed with ign' off. Prevents run on after koeo.


Most all european manufactured carb's for cars/trucks had one installed from about 1968 on. Pierburg/Solex etc..... with the exception of S.U. who used a manifold air valve that was open with koeo.. Ford used one too, to stop the engine running on with the crappy ( Constant depression. ) variable choke Autolite carb, ie: Escort/Mexico/1.3/1.6/2000etc .





.

__________________
[http://languageandgrammar.com/2008/01/14/youve-got-problems-not-issues/ ]

"A liberal is someone who feels they owe a great debt to their fellow man, which debt he proposes to pay off with your money."