Chevrolet 1977 light duty truck, Service Manual

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the assembly should be supported so th at the clutch
disc rem ains in a vertical plane to prevent silicone
fluid leakage.
5. Remove pum p-to-cylinder block and power
steering-to-pum p bolts and remove pum p and old gasket
from engine.
CAUTION: On in line engines, p u ll the pum p
straight out o f the block first, to avoid damage
to impeller.
Installation
1. Install p u m p assembly on cylinder block then,
using a new sealer-coated pump-to-block gasket, tighten
bolts to specifications.
2. Install p u m p pulley and fan on p u m p hub and
tighten bolts to specifications.
NOTE: A guide stud (5/16"-24 bolt with the head
removed) installed in one hole o f the fan hub will
aid in aligning hub, pulley and fan. Remove stud
after starting the rem aining three bolts. On Mark
IV engines install power steering and air condition­
ing bolts.
3. Connect hoses and fill cooling system.
4. Install Delcotron upper brace (V8 only), and
install fan belt. Install power steering p u m p bolt.
NOTE: G rin d a slight taper to th readed end of
bolt. This will serve as a pilot during installation
and also serve to pick-up threads on nut.
5. Adjust belts to specifications as previously
outlined.
6. Start engine and check for leaks.