Radiator Removal - Jeep 1987 Wrangler Workshop Manual

ENGINES
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COOLING SYSTEMS
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Any one of several faults or defects can affect
radiator operation;
i bent or damaged cooling tubes
i corrosion deposits restricting coolant flow
• cooling tubes restricted because of improper
soldering
Repair damaged tubes that affect proper
operation. Coolant leaks can be detected by
applying 21-34 kPa (3-5 psi) of air pressure to
the radiator while it is submerged in water.
Repair the leak holes with solder. Clean clogged
radiators with solvent or by reverse flushing.
Refer to Cooling System Maintenance.
RADIATOR REMOVAL
NOTE: Do not waste reusable coolant. If the
solution is clean and is being drained only to
service the cooling system, drain the coolant
into a clean container for reuse.
WARNING: Do not remove the cylinder block
drain plugs or loosen the radiator draincock with
the system hot and pressurized because
serious burns from the coolant can occur.
Position a drain pan under the radiator and
remove the draincock. Observe the WARNING
above.
Remove the radiator cap.
Disconnect the radiator upper hose.
Disconnect the coolant recovery hose, if
equipped.
Remove the fan shroud screws, if equipped.
Remove the radiator top attaching screws.
Disconnect the radiator lower hose.
Disconnect and plug the transmission fluid
cooler pipes, if equipped with an automatic
transmission.
Remove the radiator bottom attaching screws.
Remove the radiator.
install the replacement radiator.
Install the radiator attaching screws.
Position the fan shroud and install the screws, if
equipped.
Install the draincock.
Remove the plugs and connect the transmission
fluid cooler pipes, if equipped.
Connect the radiator lower hose with a replace-
ment clamp.
Connect the radiator upper hose with a replace-
ment clamp.
Install the coolant. Use the correct mixture.
Refer to Coolant.
Connect the coolant recovery hose, if equipped.
Install the radiator cap.
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