running without a thermostat ??

[dec-66]

is it bad to to run without a thermostat what are the pros and cons ???

[Rich306]

Pro's: it'll keep the engine really really cool so it will rarely overheat

Cons: The oil won't go up to it's proper temperature which means thicker crap moving round the engine causing potential issues.

[Piggy]

also lower efficiency...so lower power and mpgs

plus the cabin heaters will be unlikely to get properly warm

[Dum-Dum]

Before we start if your stat isn't working properly replace it. A New one for an XU10 direct from pug retails at £18.04 so not even expensive to replace especially with a discount or a pattern part. Easy job to replace too, just a few bolts and some coolant.



Pros -
Erm, none if your stat is working properly.

Cons -
Never get hot heaters
Reduced power
Reduced mpg
Higher emissiions
Oil temp will never get hot so wont burn off its contaminants
Oil pump has to work harder to pump thick cold oil
Less effective engine lubrication so more chance of premature engine wear

[Ruan]

You'll never get it to seal without a thermostat.

The thermostat provides the seal that seals up the cover that the top rad pipe clamps to.