Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993)
Hydraulic Unit: Service and Repair
Removal
REMOVAL
1) Remove canister from engine compartment to facilitate removal of hydraulic unit.
2) Disconnect brake pipes from hydraulic unit and plug open joints to prevent entry of foreign particles.
3) Remove nuts and bolt which secure hydraulic unit, and remove hydraulic unit from engine compartment.
CAUTION:
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Hydraulic unit cannot be disassembled. Do not attempt to loosen bolts and nuts.
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Do not drop or bump hydraulic unit.
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Do not turn the hydraulic unit upside down or place it on its side.
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Be careful to prevent foreign particles from getting into hydraulic unit.
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When a new hydraulic unit is installed, apply a coat of rust-preventive wax (Nippeco LT or GB) to bracket attaching bolts after tightening.
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Do not pull harness disconnecting harness connector.