Table of Contents
Advertisement
Emission Control Systems-except California
MAINTENANCE OPERATIONS
All items marked
*
in the 'MAINTENANCE SUMMARY' given on pages 76
to 82 are emission control related.
Adsorption
The charcoal adsorption canisters (5) and (10) must be renewed every 50,000 miles.
canisters
Fig. 1 To remove the secondary canister.
"
D isconnect two outer vent pipes (1) and the
c:ntral vent pipe (2) from .the top of the canister. Disconnect the inter-connecting
pipe (3) from Its connection on the canister. Remove the securing bracket nut
and bolt (4) and remove the secondary canister (5).
To
~~move
the
pri~ary.
canister. Disconnect the purge pipe (6), vapour pipes (7)
and inter-connectmg pipe (8) from their connections in the canister. Remove the
securing nut and bolt (9) and remove the primary canister (10).
NOTE: Transfer the restrictor in the primary canister outlet pipe (6) to the
new canister.
Refltting. When refitting, ensure that all connections to the secondary and primary
canisters are secure.
Air pump
Drive belt tension. When correctly tensioned, a total deflection of
t
in (13 mm)
Fig.
2
under moderate hand pressure, should be possible at the midway point of the
belt run.
Adjusting. Slacken the securing bolt (1) and the two adjusting link bolts (2),
move the air pump to the required position. Tighten the bolts and re-check the
belt tension. DO NOT OVERTIGHTEN.
Purge and
To check, disconnect the purge line (1) from the primary adsorption canister,
vapour line
and the purge line (2) from the carburetter, also disconnect the hose (3) from the
restrictors
vapour pipe.
Figs. 3 and 4
Examine the orifice of the primary canister restrictor (4), the carburetter
restrictor (5) and the vapour line restrictor (6) for obstruction. Clear any dirt
or deposit from a restrictor orifice, using a length of wire.
WARNING: DO NOT use air pressure to clear any dirt.
Exhaust gas
Servicing the E.G .R. valve (7) should be carried out by your authorized Austin
recirculation
MG
Dealer.
valve
Fig. 4
Fig. 3
Fig. 1
Fig.
4
I
I
\~./7
~
,""
\
~
I~
tj
J
BN01 46
Fig. 1
5
Hide quick links:
Advertisement
Table of Contents
