how do they know how to open. temp? pressure? thanks
V vip-vindicator Cadet Joined May 31, 2009 Messages 22 Jun 12, 2009 #1 how do they know how to open. temp? pressure? thanks
Vic.S Rear Admiral Joined May 4, 2004 Messages 4,719 Jun 13, 2009 #2 Re: 1990 140 johnson thermostat question? Temperature, just like a car one. In the smaller engines the thermostat may also used as part of the pressure control system.
Re: 1990 140 johnson thermostat question? Temperature, just like a car one. In the smaller engines the thermostat may also used as part of the pressure control system.
