joe27979
Well-Known Member
- Posts
- 1,354
- Location
- west Norfolk
Hi guys,
just changed oil on my 2.25 petrol series 3 and decided to do the cooling system as im not sure on its history.
Flush system out, the heater control was jammed up solid with crud, heater blower rad was full of muck and radiator was a bit minging, flushed out fine with clean water.
Fitted a new temp sensor, overhauled heater control and fitted a new thermostat (74 degrees)
Thing is, I cleaned both mating faces on the stat, put my paper gasket on, then my thermostat (bottom lip of thermostat sat in groove in main body), I fitted a new oring to lid of thermostat housing and torqued up nicely.
I have no internal leaks but when I re-filled my rad I left the hose off the stat housing and as soon as rad filled water came up through the stat and overflowed housing spout!
surely the thermostat should be sealed when cold to stop water from the engine going back into the rad??
am I doing something wrong or is it a naff stat?
just changed oil on my 2.25 petrol series 3 and decided to do the cooling system as im not sure on its history.
Flush system out, the heater control was jammed up solid with crud, heater blower rad was full of muck and radiator was a bit minging, flushed out fine with clean water.
Fitted a new temp sensor, overhauled heater control and fitted a new thermostat (74 degrees)
Thing is, I cleaned both mating faces on the stat, put my paper gasket on, then my thermostat (bottom lip of thermostat sat in groove in main body), I fitted a new oring to lid of thermostat housing and torqued up nicely.
I have no internal leaks but when I re-filled my rad I left the hose off the stat housing and as soon as rad filled water came up through the stat and overflowed housing spout!
surely the thermostat should be sealed when cold to stop water from the engine going back into the rad??
am I doing something wrong or is it a naff stat?
