Vehicles after change point in 1982
ADJUSTING ENGINE IDLE SPEED AND CO LEVEL
Requirements for All Adjustments:
Engine at operating temperature, i.e. oil
temperature at least 60°C (140°F).
Ignition timing and valve clearance okay.
Air filter cartridge in good condition.
All electric consuming equipment switched
off.
BMW Service Tester connected to operating
instructions.
 
1) Enging Idle Speed*:
Adjust the engine idle speed with screw (1).


Siehe auch * See Specifications and Nominal Value Microfiche
1300001 - click to zoom
 
2) CO Test:
Make sure that there are no faults in the engine,
ignition or fuel injection (see troubleshooting)
before correcting the CO level.
Remove cap (1) with Special Tool 13 1 011.
Adjust the CO level* with Special Tool 13 1 100
applied on the air control screw in the air flow
sensor.


Siehe auch * See Specifications and Nominal Value Microfiche
1300002 - click to zoom
 
Synchronizing:
Requirement - push rod adjustment is correct
(see Removing and Installing Throttle Valve
Housing - 13 54 030).
Pull off caps (1).
Measure and note intake vacuum at all six
throttle valve necks.
Leave caps (1) on throttle valve necks not being
measured.


Siehe auch 13 54 030
1300003 - click to zoom
 
Pull off caps (1) and connect vacuum tester
(M 21 of BMW Service Tester).
Adjust the intake vacuum of each throttle valve
neck to the same valve at nominal idle speed*
(screw 3) with screw (4), unsing a 7 mm wrench
socket.
Max. vacuum deviation: ± 5 mbar.
Install new anti-tamping locks (2) after
finishing adjustments.
Then recheck engine idle speed* and CO level*,
correcting if necessary.


Siehe auch * See Specifications and Nominal Value Microfiche
281300005 - click to zoom