Fiat Uno Manual
Air cleaner - servicing, removal and refittingFuel system / Air cleaner - servicing, removal and refitting
1 The air cleaner air intake draws air either from the front of the car or from the outside of the exhaust manifold according to ambient temperature (photo).
2.1 Air cleaner hot air intake
2 At an ambient temperature of 13ºC (55ºF) and above, the SUN symbol should align with the intake spout arrow head. Remove the cover nuts and turn the cover.
3 At an ambient temperature lower than this, move the air cleaner cover until the SNOWFLAKE symbol aligns with the intake spout arrow head.
4 At the intervals specified in “Routine Maintenance” renew the air cleaner filter element.
5 To do this, remove the cover nuts and take off the cover (photo).
2.5 Air cleaner cover
6 Take out the filter element and discard it.
Wipe out the air cleaner casing (photo).
2.6 Removing air cleaner element
7 Locate the new element and refit the cover aligning the appropriate symbols.
903 cc engine
8 To remove the air cleaner from the 903 cc engine, unscrew the nuts and take off the cover. Lift out the filter element.
9 Unbolt the air cleaner casing from the carburettor flange and from the bracket on the rocker cover. Disconnect the vent hose (photo).
2.9 Crankcase vent hose at air cleaner
10 Disconnect the warm and cool air intake hoses from their collecting points and lift the air cleaner from the engine.
1116 cc and 1301 cc engines 11 Removing the air cleaner from the 1116 cc engine is similar to that described for the 903 cc engine, but having a cylinder head support bracket (photos).
2.11A Air cleaner mounting studs (1116 cc)
2.11B Air cleaner mounting bracket and pipe clip
12 The air cleaner on the 1301 cc engine is mounted on the four flange studs of the carburettors, their nuts being accessible after the air cleaner lid has been removed and the filter element extracted.
13 Refitting of all types of air cleaner is a reversal of removal.