Quote Originally Posted by Throbbinhood View Post
Wouldn't the thermostat be fully open before 100c anyway? As such you won't need it to be pressurized to see it's full range of movement and where it gets stuck.

Edit: looking online, rb30 thermostats open at 76.5. I can't find what temp they are fully open. Highest I've seen on my gauge is 84, which was towing a trailer up a long hill on a 43c day, at which point the clutch fan kicked in and brought it back down. It normally sits between 78-80 unless she's copping a flogging, then she goes to 82c.
Thanx for posting the above info mate.

Do you have an aftermarket temp gauge fitted?
Shouldn't the "healthy" temperature be bit higher than 84?
I've been thinking all this time it should be around 90 degrees or so.

Another question popped into my head is that I haven't been aware the fan clutch is a temperature controlled type.

Can you please confirm it mate?