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ENGINE 273 MPFI
Radiator core and plastic tanks are susceptible
to cracking due to impact and deformation.
CAUTION
• Unscrew the mounting screws of fan motor to fan
shroud.
• Remove the fan motor from shroud.
Repair Procedure for Aluminum Radiator
1. Detection of Leakage Spot
• Connect the inlet of the radiator to air supply at
the gauge pressure of 1 bar
• Seal all other outlet points.
• Dip the radiator completely in a clean water tank.
• Tilt the radiator and shake it vigorously to let the
air bubbles trapped at the clinching area to escape.
• Observe carefully for one minute and locate the
source of air leakage on the radiator from the
direction of air bubbles that are coming out of
radiator.
CAUTION
• If the Leakage spot is at radiator core then follow
the procedure given at Sr. No. 1.1 to seal the
leakage.
Do not use the water tank that is used for copper
radiator.
1.1 Sealing the Leakage at Radiator Core
Different procedure of sealing shall be followed for
MINOR and MAJOR leaks in the radiator core. (Refer
and followmanufacturing instructions before carrying
repairs)
Minor Leaks
: Leak spots which are very minor are to
be sealed in following manner.
• Install the radiator on vehicle.
• Pour the contents of ALUMASEAL in the radiator.
• Fill proper quantity of coolant liquid.
• Run the engine in idling speed for 20 minutes
Major Leaks
: Procedure of sealing major leaks in
the radiator is as follows:
• Wash the corewith cleanwater and brush to remove
dirt, dust etc.
• To remove the greasy spot on the core, apply thinner
with cotton swab and take off the grease.
• Dry the core using a dryer (Do not use heating
source)
• Mix adequate quantity of ARALDITE RESIN
(Araldite rapid may be used in place of Araldite
standard for faster drying & curing of seal) and
HARDENER in the ratio of 1:1 and stir it thoroughly
• Apply the mixture immediately at the leakage spot
with the applicator.
• Allow themixture to dry and harden under the shade
at room temperature for 10-12 hour. Silver color
paint may be used for touching up the araldite spots
and impart the aluminum type appearance.
Do not damage the fins during process.
As the Araldite is inflammable do not dry it by using
any heating source.
Proper cleaning of leakage area is must for proper
setting of Araldite or else it will come off.
CAUTION