bongo1
Active Member
- Posts
- 462
- Location
- MACCLESFIELD cheshire
Hi this maybe a silly question to some , But when a Thermostat is closed how closed is it , the one i have you can see a slight gap all the way around and can shine a light through a gap say about a4 print paper size (thickness)not width/length , Ive never looked that close before but as my defender heater is @@@@ im thinking is that open enough to let the coolant through thanks gerry