Engine Removal and Disassembly

1
Engine Removal and Disassembly
2
Engine Removal

• Refer to the proper service manual
• Disconnect all wires and hoses before attempting
  to remove engine
• If the transmission has an automatic transmission
  the torque converter stays with the transmission
• Be sure transmission is properly supported while
  removing the engine

3
Engine Removal

• Drain all fluids (oil, coolant)
• Mark hinges - remove hood
• Take pictures of engine bay
• Disconnect battery - negative terminal first
• Remove topside components first
• Air Cleaner Assembly
• Fan and Fan shroud
• Radiator and radiator hoses
• Heater hoses

4
Topside Components Cont

• Throttle linkage
• Fuel lines after relieving fuel pressure
• Disconnect and mark vacuum and electrical
  connectors
• Air conditioning compressor
• Power steering pump
• Alternator

5
Bottom side components

• Exhaust components
• Splash pans and shrouds
• Starter motor
• Engine mounts
• All accessible wiring
• Half shafts or drive lines
• Automatic transmission cooler lines

6
Remember

• Protect paint and finish of the vehicle.
• Protect radiator and/or condenser.
• Support the transmission/transaxle.
• Remove engine from above if possible.
• Use factory lift points if possible.

7
Removing the engine

• Remove engine slowly - make sure you have undone
  every thing
• You will have to move the engine forward while
  raising it on RWD cars
• Use common sense and think about what you are
  doing

8
Attaching Engine to Stand

• Use proper bolts
• Connect all four ears to the engine
• Have someone help you

9
Engine Disassembly Tips

• KEEP EVERYTHING ORGANIZED!!!
• Dont rush ahead work methodically
• Dont do anything I havent demonstrated
• If you arent absolutely sure of how to do
  something ask
• Use proper tools
• De-torque components properly

10
De-torque

• Components that have a bolt torquing sequence
  must be properly de-torqued to avoid distorting
  them
• Intake manifold
• Exhaust manifold
• Cylinder heads
• Main and rod caps

11
De-torque

• If a de-torquing pattern is given, use it
• If a torquing pattern is given, reverse it for
  de-torquing
• If no pattern is given loosen from the ends in
• Break all bolts loose in the correct order first
  then come back and finish loosening them in the
  correct order

12
De-torque
Example sequence when no other sequence is given
1 5 9 7 3
2 6 10 8
4
13
Engine Disassembly

• Be sure all fluids are drained
• Remove all motor mount brackets and accessories
• Remove exhaust manifold(s)
• Remove carburetor/throttle body
• Remove intake manifold (de-torque)
• Remove valvetrain (keep in order)

14
Engine Disassembly

• Remove cylinder head(s) (de-torque)
• Remove cylinder ridge
• Remove oil pan
• Mark main and rod caps for direction and location
• Mark pistons for direction (if not already marked)

15
Engine Disassembly

• Remove oil pump
• Loosen all rod bolts
• Remove 1 rod cap (DO NOT get rough with them) ask
  for assistance if necessary
• Remove the rod/piston from the engine (use bolt
  boots)
• Replace cap and nuts on rod
• Repeat for each rod/piston assembly

16
Engine Disassembly

• Loosen main bolts (de-torque)
• Remove main caps again, dont get rough with
  them
• Lift crankshaft out crank should be stored
  standing on end
• Remove camshaft
• Remove cam bearings and frost plugs