Chain Cover

Special Tools:

Disassembly

1. CAUTION: Do not pull on wiring. Pull on connector, or wires may be pulled from connector. Be careful not to cut or damage wire insulation or connector.





If wiring or chain cover replacement is necessary, compress tabs on both sides of connector from inside of chain cover. Pull connector and harness out of chain cover.





2. Remove No. 1 drive sprocket thrust washer and No. 3 chain cover thrust washer from chain cover.





3. Remove bolt and manual valve detent spring.





4. Remove four accumulator piston shafts.

5. CAUTION: Do not use any objects in piston shaft bore for removal or damage to bore may result.

NOTE: Identify pistons with respect to the proper bore to aid in reassembly.





Remove four accumulator pistons. Remove and discard four seals from pistons.

6. CAUTION: Use care not to damage machined surfaces or bimetal element.





IF NECESSARY, use side cutters supported by a small piece of wood to carefully remove bimetal element retaining collars. Remove bimetal element and thermostat plate.

Assembly





1. Measure the distance that the center bimetal element pin protrudes from the chain cover. Maximum allowable height is 6.5 mm (0.26 inch).
2. Engage hole in bimetal strip onto end retaining pin.





3. Position Bimetal Height Gauge T86P-70422-AR against retaining pin and under bimetal element. Gently tap retaining collar onto pin until it seats against tool edge.





4. Engage slotted end of bimetal element under rear retaining pin. Place Bimetal Height Gauge T86P-70422-AR against retaining pin and under bimetal element. Gently tap retaining collar onto pin until it seats against tool.





5. Remove slotted end of bimetal element from pin. Position fluid level thermostat plate over end and middle retaining pins.





6. Install slotted end of bimetal element under retaining collar.





7. Install four new seals on accumulator pistons. Lubricate seals with a light coating of petroleum jelly.

8. CAUTION: Do not allow pistons to cock in their bores; seal or bore damage may result.

NOTE: The 1-2 shift accumulator spring must be installed facing down into the chain cover bore (SHO only).





Install four accumulator pistons into their bores.

9. NOTE: Use petroleum jelly to keep shafts in place during chain cover installation; shafts can be installed after chain cover is installed.





Install four accumulator piston shafts.





10. Install manual valve detent spring. Tighten retaining bolt to 9-12 Nm (80-106 inch lbs.).





11. Install No. 1 drive sprocket thrust washer and No. 3 chain cover thrust washer. Use petroleum jelly to hold them in place.





12. If removed, install new connector and harness assembly by pushing into bore from the outside until a click is heard.