Swift Cee

Could driving without the Thermostat cause any major problems (other than when its cold) with the engine
cheers

Miniman

iTrader: (2)

If the air temperature drops across the radiator, say during a long motorway drive, then the water could be constantly cooled to below the optimum range and this will be constantly pumped round the engine. No doubt faster speeds will assist in moving the air out of the engine bay helping to move the temp even lower.

I don't know the effects of temp range on a Subaru engine though, but its a thermostat for a reason, so my guess is the water needs to be at an optimum range for the engine.

slimnotshady

If the air is cold, the resulting high flow of cold water can distort the cylinder shape slightly. The resulting opposing cold and hot spots could also cause fatigue in the block and head. Best to run with a stat all the time.

tath

i doubt you'll ever get off the cold start cycle without one - iirc it's 75deg?

Mark A

iTrader: (1)

This is interesting as I'd planned to remove mine to help with cooling while sprinting.

tath

might be better either getting one that opens a bit earlier (not sure if they're available for scoobs) or drilling a couple of holes in one.

Dyney

I'm not sure the housing on a Scoob will seal without a 'Stat in.
The seal is the rubber ring round the edge of the 'stat

dieard

personally wouldnt,
only time id run without a stat is a 1.3 ltr astra stock car racing!

Swift Cee

yeap! its no good!!!! took ages this morning to get going, hopefully my new one is turning up today.

forget it chaps i wouldnt suggest it.

cheers
swift

BenGee

iTrader: (1)

Mine runs fine without one the thermostat housing seals fine without it too

Only tried it without while trying to find a cause of overheating tho