Page 48 - Tech handbook 2019 rev 6 whyperlinks
P. 48
• Drain the radiator, heat exchanger etc. sides of the same circuits unless the coolant is
not being replaced.
Isolation and Draining of Engine Oil Lubricating Circuits
• Drain the engine oil and auxiliary oil tank into an approved container(s) suitable for
the volume being drained. Label the container(s) as “used oil”.
• Verify all oil fill/make-up valves are in the closed position.
Top End Disassembly
• During disassembly all engine piping, covers etc. should remain closed and sealed as
possible.
• All parts being removed shall be visually inspected for any unusual wear or failures
as this could point to unforeseen problems. Inspect exhaust manifolds, ignition
parts, wiring harnesses etc.
• All cylinder heads shall be marked with the cylinder number they were removed
from in case they need to be referenced at a later time.
• Any parts being reused such as pushrods, valve rockers etc. must be labeled with the
cylinder number and which valve; intake or exhaust they were installed on so the
parts can be reinstalled as a matched set.
• All parts being reused must be inspected at the time of removal, so any necessary
replacements can be ordered to minimize any delays.
• All parts being reused must be stored properly to keep them free of dirt and debris.
• All parts not being removed, such as the cam shaft must be inspected at the time of
top end disassembly to minimize any delays if there are unexpected issues.
• Before beginning disassembly of the bottom end cover and seal as many openings as
possible such as the intake manifold using engine specific magnetic covers.
• Refer to the document section for the applicable FSM’s, TI’s, ST’s and Maintenance
Tasks.
Bottom End Disassembly
• During disassembly all engine piping, covers etc. should remain closed and sealed as
possible.
• All parts being removed shall be visually inspected for any unusual wear or failures
as this could point to unforeseen problems. Especially connecting rod and main
bearings.
6 | P a ge
