Broken Thermostat already?

[fintstone]

Originally Posted by boyt911sc

Grant,

Thanks for the information. And I've sent a PM to Walt asking for some clarification about the 'wax' like device too. I was curious how these auxiliary thermostat work and have dis-assembled a few of them to investigate and study their function.

Walt,

Please accept my apology for contradicting your statement. I have not seen the wax-like material in the auxiliary thermostat during my quests and would dissect the valve next time I get the chance.

Tony

The part with the wax in it is just to the right of the spring in your photos. It is the piston in a sleeve. Walt is absolutely correct.

[fintstone]

Otto

Make sure that your temp sender matches your gauge, not necessarily your engine. If it was correct with your 3.0, then that is the sender you need.

[otto in norway]

Thanks for all your input.

I have finally got some time at home to investigate further.

I purchased a electronic steak thermometer for use when determining the temp of food. But I had other intentions for it. I just put the meter pin right down into the oil tank when I had warmed it up a bit. When the temperature reached 88 celsius, I felt the pipes going to the front heat up. So, the external thermostat works after all. I then checked the part number for my new temperature sender. It turns out I have the wrong sender. I have the one for numbered gauges, not for my gauge without numbers on it.

So that was good news!
I just need to replace the sender, -a walk in the park...