39-4.0 Engine Removal

[fiatslug87]

If anyone has this please post.

[hgeranium]

 1) Scribe hinge locations, remove engine compartment light (if equipped) and remove hood. Disconnect battery cables and remove battery. Drain cooling system.        

2) Disconnect wire connectors from alternator, ignition coil and distributor. Disconnect oil pressure sender wire, starter wires and fuel injector wiring harness (if equipped). Detach 2 fuel pipe quick connect couplings at left inner fender panel. Disconnect engine ground strap and remove air cleaner.        

 

3) Disconnect the vacuum purge hose at fuel vapor canister tee. Disconnect wire from idle speed actuator and oxygen sensor. Detach throttle cable from bracket and disconnect throttle valve rod at bellcrank. Remove upper and lower radiator hoses.        

 

4) On automatic transmission models, disconnect the transmission fluid cooler tubing. On all models, remove fan shroud and radiator. Remove fan and spacer or Tempatrol fan assembly. Hold fan pulley to water pump flange using 5/16" x 1/2" SAE capscrew while crankshaft is rotated.        

 

5) Disconnect cruise control cable (if equipped). Disconnect wires from starter motor solenoid and disconnect CEC system harness. Remove power brake vacuum check valve from booster (if equipped).        

 

6) Disconnect power steering hoses from steering gear (if equipped). Drain power steering pump reservoir and plug end of hoses. Cap all fittings on steering gear and hoses. Raise and support vehicle. Remove starter. Remove flywheel housing access cover.        

 

7) Remove upper and loosen lower bellhousing-to-engine bolts. Attach lifting equipment to engine. Raise engine off front mounts. Place support under bellhousing. Remove remaining bellhousing-toengine bolts. Lift engine out of engine compartment.

 

TORQUE SPECIFICATIONS TORQUE SPECIFICATIONS TABLE Application Ft. Lbs. (N.m)

Automatic Transmission-to-Block  ..................  28 (38) Clutch Housing-to-Block  Top  ............................................  27 (37)  Bottom  .........................................  43 (58)

Drive Plate-to-Converter  .........................  22 (30) Drive Plate/Flywheel-to-Crankshaft  .............  105 (143) Front Support Bracket-to-Block  ...................  35 (47)

Front Support Cushion-to-Bracket  .................  33 (45) Front Support Cushion-to-Crossmember  .............  37 (50) Rear Support Bracket-to-Transmission  .............  33 (45) Rear Support Cushion-to-Bracket  ..................  30 (41) Starter Motor-to-Converter Housing  ...............  18 (24)

 

 

There's plenty of tips and tricks that one can find browsing the jeep forums, but this is at least a starting point. It's straight out of an engine removal

guide. I couldn't find anything directly from cruiser related to this, but at least now, after I hit submit on this comment, all of cruiser's tips will 'officially' be filled with some sort of information backed by the spirit of cruiser on Comanche Club!

 

[hgeranium]

This may already be linked in the tech forum, but for those who need it and are already here,

 

https://cdn.xjjeeps.com/pdf/en-us/jeep-engines-guide.pdf

 

This PDF gives great in-depth information of engine and engine building for every AMC/Jeep engine from the 2.5, 2.8, 4.0, 4.2, 4.7, and the AMC 360!