Hi all, i have an 84 Westy and my Temp Gauge is giving me a false reading. The needle will rise to full hot after about 10 minutes yet it is not low on coolant. When checked with an IR Gun the temps all are normal. I am not puking coolant and the fan will come on after a good long heat soak,I am getting no air out of  the bleeder at the Radiator. The Voltage stabilizer at the instrument cluster is reading 10.8- which is over the 10.5 in my Bentley . The Fuel Gauge is reading normally .When these things fail is it usually the sending unit the the expansion tank? I cleaned the contacts both inside and out. No joy. I am going to try connecting a 100 ohm 1 watt resistor as per The samba and see if I can center the Gauge. Any advice would be appreciated.
Thanks, Bill Witz