Overheating Problem - No Flow??
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
The T-Stat does more than just help warm the engine, it also restricts the flow of coolant to allow the heat to be removed as the coolant passes through the radiator. You may end up with another cooling issue running without a thermostat. Even some race engines use flow restrictors to slow the coolant down. The purpose of the by-pass is to keep air out of the system. There is no need to jack the car up to remove air from the cooling system, just another urban legend. By removing the thermostat you bypassed 100% of the coolant and that is how the air was removed not jacking the car up.
Air pockets or bubbles get trapped in the block, in the heads, in the intake manifold and even in the heater core of a system that has been drained / refilled. You can run hundreds of gallons through the system and still not dislodge all the bubbles. Air will seek the highest point.
Elevating the Rad is the key. It really works well.
Last edited by HeadsU.P.; May 5, 2019 at 09:36 AM.
