The thermostat on a diesel is on the return from the rad according to a diagram Saint v8 put up some time ago.
 
Wouldn't the thermostat isolate that side until it ws warm
If the system is pressurising then you will know it.As Brian posted the thermostat is on the return, but anyway, it has a bleed valve/hole which would allow the pressure,if any, past.
 
If the system is pressurising then you will know it.As Brian posted the thermostat is on the return, but anyway, it has a bleed valve/hole which would allow the pressure,if any, past.

Cheapo one may not.
 
Afternoon Alan. Just off to Halfrauds for some bike bits. Got lumbered with two freestyle bikes to sort out for two of the grand kids. How come every time i do somebody a favour it costs me money. :D:D
It's what us Grandads are for mate, get your trade card out.;):D
 

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