Quote:
Originally Posted by dhs.buckley
Before removing the head I would put a laser temp gauge on the head and check several points to see if there are any hot points and compare the 2 heads. I found the laser temp gauge such a handy tool and they are not expensive anymore. I found that the temp gauge and thermostat where buggered on an old fairlane was reading 105c on the gauge in the car and with the laser on the thermostat and the temp sender it was actually 73c, new gauge and thermostat no more overheating problems.
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Well the temp test was interesting found about 30 degrees difference on the drivers side head at the back of the heads (this is the side I suspect the gasket is the wrong way around) but not much difference at the front of the heads.
So decent road test time drove it to work in the morning cool light traffic. So the temp gauge barely moved off the "0" of 180 F, crept up a smidge at the lights but not much. Next was the real test the drive home in the traffic outside temp was about 20 ish degress again not very hot. I did how ever sit in heavy traffic doing about 20-40 km/h for about 20 mins. Thermo fan on the temp got up to just shade before the "2" of the 210 F mark and stayed there (thankgod). Once I cleared the traffic and started moving again temp came back down to just above 180 F. So all good so far drove around in it most odf the weekend with no problems still no a particularly hot day. next big test is wait for a hot day and go for a drive and cross my fingers.