I come back to you with an issue after a full restoration of my car (including carb : all new seals, ultrasound cleaning.....)
The car is equiped with the Solex 32 DIDTA carb.
The idle is WAYYYY too fast. What ever the settings of idle on main lever, or idle screw or even idle mixture, whatever they are set to what could be the correct position, or if I put them in the lowest position, it still remains so high that my ears are bleeding.
I don't have rpm odometer but it could be close/higer than 2000rpms or so...
What could make the idle so high even with settings set to minimum or even 0 : idle lever fully removed, idle screw fully closed and so is the idle mixture screw. At this stage the car should definitly stall but it goes faster!
So what could it be please ?? Any idea ? The only weak point is the advance ignition/timing which might be uncorrect, could it be the reason that make the engine runing high whatever the basic idle settings are ??
Thanks for your help
- Peter V.
- E21 VIP
- Posts: 11922
- Joined: Sun Mar 30, 2008 12:42 pm
- My E21(s): '82 320/6
- Location: Breda, Nederland
* The top valve of the automatic choke is completely open?
* Leakage through the bottomgasket of the carb and inletmanifold?
* Believe it or not but sometimes i See that the throttlecable is to tight
.Some say he eats nuts and bolts for breakfast, all we know is he is called the carburetorman.
BMW E21, 1981 320/6 Ascot Grau.
BMW E85, 2004 Z4 2.5i Sterling Grau.
BMW F31, 2017 320dA EDE Luxuryline Mineral Grau.
I have somewhat similar issue. After complete rebuild of my SOLEX DIDTA 32/32 carb, it started idling at high rpm.
My first suspect was faulty needle valve which does not close properly and lead to overfueling. But it's working fine.
Then I figured it could be wrong float adjustment = fuel level too high in a float chamber. Tried tweaking it to a level I couldn't even start a motor anymore (doh)
Tweaked it back a little and it starts again now, but as before - RPMs are too high.
Any advise would be welcome.