Drill holes in thermostat??
Le Mans Master
Joined: Nov 2002
Posts: 7,080
Likes: 0
From: Corvette valley Georgia
St. Jude Donor '06
Re: Drill holes in thermostat?? (LT4BUD)
The 96 LT4 has factory bleed valves on the thermostat housing.
Safety Car
Joined: Sep 2000
Posts: 3,524
Likes: 4
From: Hinckley Ohio
Re: Drill holes in thermostat?? (grapeknutz)
The bleeders are used when installing a new thermostat or when refilling coolant after draining. You open the bleeders and add coolant until coolant start flowing out of the bleeders. At first air comes out, then bubbly coolant, then solid stream of coolant. You do this before you start the engine.
I think the real purpose of drilling holes in the thermostat is to increase coolant flow as even when most thermostats open, they still restrict coolant flow to some extent.
I think the real purpose of drilling holes in the thermostat is to increase coolant flow as even when most thermostats open, they still restrict coolant flow to some extent.
