Engine Thermostat

mtelliott · 12-20-2003, 06:43 PM

How can I test my engine thermostat. I'm assuming it works fine but would like to know if there is a way to test.

Thoughts?

feelyx · 12-20-2003, 08:02 PM

put it in a pot of water on your stove and heat it up to 83c and watch it open.
Tim in Sac

feelyx · 12-20-2003, 08:02 PM

...and don't let the wife catch you

mtelliott · 12-21-2003, 09:12 AM

Thank you. Didn't know if putting it in water would hurt something that normally sits in oil.

North Coast Cab · North Coast Cab's Garage

Easy test if it's not out is to run car until it gets to the 190-200 degree range. When it opens up the lines to the front cooler will heat-up.

John

ttweed · ttweed's Garage

Quote:

Originally posted by North Coast Cab
Easy test if it's not out is to run car until it gets to the 190-200 degree range. When it opens up the lines to the front cooler will heat-up.

Actually, one line to the front cooler will heat up (the supply line) even if the thermostat never opens. The other (return line) will stay cool until flow begins in the system, so be sure to feel both of them.

TT

Early_S_Man · 12-22-2003, 03:22 PM

Guys ... you can't rely on the temp of the scavenge line to tell whether the engine-mounted thermostat is opening or not!