GM Camaro 1967-1981 Repair Guide

Thermostat

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REMOVAL & INSTALLATION



See Figures 1 through 9

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Fig. Fig. 1: On some models it may be necessary to disconnect the radiator hose from the thermostat housing for clearance-first label all vacuum hoses ...



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Fig. Fig. 2: ... then detach them from the thermostat housing



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Fig. Fig. 3: Loosen the upper radiator hose clamp ...



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Fig. Fig. 4: ... and pull the upper radiator hose off of the housing



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Fig. Fig. 5: Often a wobble-headed extension, which allow the socket some flexibility, can help access difficult bolts



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Fig. Fig. 6: Remove the thermostat housing mounting bolts ...



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Fig. Fig. 7: ... then lift the housing off the intake manifold



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Fig. Fig. 8: The thermostat pulls out of the hole in the intake manifold



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Fig. Fig. 9: Make sure to remove all old gasket material from the waterneck gasket mounting surface prior to installation

  1. Label and disconnect all vacuum hoses attached to the waterneck (some waternecks have temperature-controlled vacuum switches mounted in them).
  2.  
  3. Detach the upper radiator hose from the waterneck.
  4.  

This procedure can also be completed without disconnecting the upper radiator hose from the waterneck, if only the thermostat is being serviced.

  1. Remove the two retaining bolts from the thermostat housing (located on the front top of the intake manifold on V6s and V8s, and directly in front of the valve cover on inline sixes), and remove the thermostat.
  2.  
  3. Pull the thermostat out of the hole in the intake manifold.
  4.  
  5. Clean the waterneck-to-intake manifold gasket mounting surface of all old gasket material and corrosion.
  6.  
  7. Use a new gasket when replacing the thermostat.
  8.  

 
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