Air Leaks And Throttle Shutter - Volvo 240 1989 Service Manual

Ajr l eakage
Fuel system LH2.4 - 240
Air leaks and throttle shutter
Cf
Check Intake system lor leaks
Intake sy stem air teak s would make the mixture too
lean.
Check :
- Intake manllold between the air filter and Ihe m ani­
fold.
- All hoses and hose connecllons to the intake manl­
lold.
- Intake manifold bolted joints and seals, throttle
sh utter housing, etc.
C2
Throttle housing
Check housing for dirt.
II
necessary, clean throttle housi ng
Disconnect throttle switch connector.
Remove housing. Clean with solvent, but ensure that
none enters th e throttle switch.
Important!
A
clogged, incorrectly mounted or
damaged air filler will result in a dirty throttle
housing.
Install throttle housing
Use new gasket.
Connect air hoses and throWe swilch connector.
Basic throtlle selling
C3
Loosen locknut.
Loosen adjuslment screw until throttle Is oompletely
closed.
Tighten adjustment screw until
It
lust touches the
linkarrn. Turn a hall turn further.
Tighien locknut withou t changing the adjustment
screw position.
(It may be necessary to loosen the throttle switch
before setting the throtUe.)
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