2002 Jaguar XK8 How to replace thermostat

Tiny
WILL THE DRILL
  • MEMBER
  • 2002 JAGUAR XK8
  • V8
  • 2WD
  • AUTOMATIC
  • 64,000 MILES
How do I replace the thermostat on my 2002 Jaguar XK8? Engine is a 4 litre. I have the required parts from my Dealer.
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Saturday, November 21st, 2009 AT 9:55 AM

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Tiny
DAVE H
  • EXPERT
THERMOSTAT - VEHICLES WITHOUT: SUPERCHARGER
Removal
Open the engine compartment and fit paintwork protection sheets.
Drain the radiator. Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITHOUT: SUPERCHARGER. Retain the coolant drain tray in position to catch any spillage when removing the thermostat cover.
Remove the engine cover panels for access.
Disconnect the radiator bottom hose from the thermostat cover.
Release and reposition the hose clip, and disconnect the bottom hose from the thermostat cover.
Fig. 84: Disconnecting Radiator Bottom Hose From Thermostat Cover
Courtesy of JAGUAR CARS, INC.
Remove the thermostat cover.
Remove the three bolts which secure the thermostat cover to the housing. (1)
Remove the thermostat cover from the housing. (2)
Fig. 85: Removing Thermostat Cover
Courtesy of JAGUAR CARS, INC.
Remove the thermostat from the housing.
Remove the thermostat from the housing. (1)
Remove (and discard) the seal from the thermostat. (2)
Fit a new seal to the thermostat. The seal may be fitted either way round.
Fig. 86: Removing Thermostat From Housing
Courtesy of JAGUAR CARS, INC.
Installation
Installation is the reverse of the removal procedure.
Fit the thermostat so that the vent ball valve locates in the recess in the cover.
Tighten the thermostat cover bolts to 8-10 Nm.
Fig. 87: Tightening Thermostat Cover Bolts
Courtesy of JAGUAR CARS, INC.
Refill the cooling system as described. Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITHOUT: SUPERCHARGER.
THERMOSTAT - VEHICLES WITH: SUPERCHARGER
Removal
Open the engine compartment and fit paintwork protection sheets.
Drain the radiator. Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITH: SUPERCHARGER. Retain the coolant drain tray in position to catch any spillage when removing the outlet pipe.
Disconnect the bottom hose from the coolant outlet pipe.
Release and reposition the hose clip.
Disconnect the bottom hose.
Fig. 88: Disconnecting Bottom Hose From Coolant Outlet Pipe
Courtesy of JAGUAR CARS, INC.
Remove the thermostat from the outlet pipe.
Remove the three bolts which secure the thermostat cover to the outlet pipe. (1)
Remove the thermostat cover, the thermostat and the seal from the outlet pipe. Discard the seal. (2)
Fig. 89: Removing Thermostat From Outlet Pipe
Courtesy of JAGUAR CARS, INC.
Installation
Installation is the reverse of the removal procedure.
Use new sealing rings on the coolant outlet pipe and thermostat housing.
The thermostat ball valve must locate in the recess in the cover.
Tighten the thermostat cover bolts to 8-10 Nm.
Refill the cooling system as described COOLING SYSTEM DRAINING, FILLING AND BLEEDING - VEHICLES WITH: SUPERCHARGER.
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Sunday, November 29th, 2009 AT 9:51 PM

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