Chevrolet CHEVY VAN G10 SERIES Service Manual page 185

G eneral D escription ..............................................................6 M -11
M aintenance P ro c e d u re s ...................................................... 6 M -1 1
Air cleaners on all models operate prim arily to remove dust
and dirt from air before it is draw n into the carburetor and
engine. The air cleaner also helps to reduce engine noise and
quenches any flame th a t m ay be caused by engine backfire
through the carburetor.
Two types o f air cleaners are used. They are the oil w etted
Carburetor A ir Cleaner Elem ent—
ditions, the carburetor air cleaner elem ent should be replaced
-8
every 24,000 miles on V
engines. O peration o f vehicle in dusty areas will cause rapid
clogging o f elem ent and enrichm ent o f carburetor m ixture.
Under these conditions, the elem ent m ust be replaced m ore
frequently.
Therm ostatically Controlled
should be inspected to make certain th a t all hoses and ducts
are in tact and correctly installed. O perational function should
be checked by inspecting position o f valve in air intake. With
engine stopped, valve should be open. A t u nderhood tem per­
100
ature below °F , w ith engine running, valve should be
partially or fully closed. As engine underh o o d tem perature
rises, the valve should open.
BOTTOM
ELEMENT
Fig. 1 A —Paper Elem ent A ir Cleaner
AIR CLEANERS
GENERAL DESCRIPTION
MAINTENANCE AND SERVICE
U nder norm al operating con­
engines and 12,000 miles on L
T he air cleaner
A ir Cleaner—
COVER
P ag e
Elem ent R eplacem ent ..............................................................6M -11
Inspecting Paper E le m e n t.........................................................6 M -1 2
paper elem ent air cleaner and the oil bath air cleaner.
The oil w etted paper elem ent air cleaner (Fig. 1A) consists
o f an accordion pleated oiled paper filter supporte; by wire
m esh w ith a plastisol seal on b o th to p and botto m .
The oil bath air cleaner (Fig. 2A) utilizes an oil sum p in the
air cleaner b o tto m and a fibre elem ent.
ELEMENT REPLACEMENT
-6
1. Remove air cleaner cover.
2. Remove elem ent.
3. Remove b o tto m section o f air cleaner and remove and
discard air cleaner gasket.
4. Clean b o tto m section o f air cleaner and air cleaner cover
thoroughly.
N O T E : Check air cleaner cover seal fo r tears or
cracks.
5. Install b o tto m section o f air cleaner w ith a new air
cleaner gasket.
6
. Install new paper elem ent on b o tto m section o f air
cleaner w ith either end up.
7. Install air cleaner cover.
ENGINE FUEL 6M-11
P age
C H E V Y V A N SH O P M A N U A L