mk1 xj as the heater on the floater is not overly warm i suspected an air lock so took the top return pipe off at the bulkhead to find almost no flow at tickover that rises as the revs rise so i now suspect that there may be no thermostat in the engine as generaly the flow is aided by thermostat being in place forcing the water to bypass the partial restriction
i also noticed the aircon pump cycling evan though the aircon was not selected as heater was in the heat position .....any idea why
?
i also noticed the electric fan cycling evan though the temp was not at working temp well below 100...any ideas...??
till i get a new stat i pulled the aircon relay and disconnected leky fan but it did make me wonder why the heater is better now but not fab
so as know almost nothing of xjs i hand the question to the hoards of xj folk out there
