I put a new thermostat in my 300d, with the old one I could not get above 125 degrees unless I was going 70. I already had cardboard over the radiator. With the new one I can't get under 200 degrees unless I am going around 60mph.
the manual shows a bleed screw on the thermostat housing, but it is not there on my car. so.....
-should it run that hot ?( I worry about what will happen in the summer)
-can I/should I/how do I bleed the system? and will it hurt to drill a small bleeder hole in the thermstat like was in the old one?

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andy t
'78 300d
'95 volvo 850, wagon
'86 300sdl - engine out, maybe I'll have it rolling by June

whole bunch o' bicycles