Ahh, I was under the impression that the engine temps would vary depending on conditions, as I tend to drive very lightly the majority of the time, silly me!
Do you know where I can get hold of a thermostat? Is it possible to get a new one? I'm only able to find the 1.6 twinspark ones.
Thanks a lot!
Any regular Motor Factors should be able to get one, even if they won't have one in stock.
The Boxer-engine OE part number is 60591817 - most Factors can cross-reference whatever aftermarket brand they have to the OE part number. Beware anyone selling a 'stat for a 1.6 - 1994-2001 ... ! Boxer was 1994-1996 only.
Aftermarket 'stat is about £16 ... gennoine Alfa one will be around £22. Depends who your local dealer is.. but they should be able to supply one too.
Once your coolant is heated up to 80, driving along normally should keep the temperature around there. If you have the chance to watch the needle, you'll see that the temp' actually dips a bit when the 'stat opens... as colder coolant enters the block/passes the sensor when the 'stat opens (hot coolant goes to the rad').
But it should heat back to 80 again almost immediately.. in normal driving you won't even see the "dip".. it recovers that quickly.
If the temp' plummets to 70 or less on the open road, and stays there, then the stat is definitely knacked. His job is to keep the temperature as close to 80 as possible, at all times. Sure, the temp will dip if you turn the heater on full blast, or drive through a ford/flood etc.. but recovery should be pretty quick.. 20-30 seconds, something like that.