Ricko595@aol.com wrote:
>
> I just changed the thermostat on my 1978 B because the DPO had exchanged the
> plastic filler cap on the housing with a steel pipe plug which was tightened
> with extreme force. This necessitated me removing the housing and heating
> everything up to remove the plug. The thermostat has a little (less than a
> quarter inch) float or bulb off to one side. It appears to close if coolant
> flow comes up from below and open if the coolant flows from above. What is
> the purpose of this? It's stamped "Made in England" so I assume it is OE. Any
> guesses? The replacement from VB doesn't have this feature.
I think it is a float valve that stops airlocks when filling the system. But I
could
be wrong.
PaulH.
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