The Ford Barn

Tom Wesenberg · 02-02-2013, 12:53 PM

When I was flushing the rusty vinegar treatment from my Model A, I started and reved the motor to see if the drain valve would quit flowing and start sucking air, and it did.

BILL WILLIAMSON · 02-02-2013, 04:03 PM

Even after your radiator seeks it's "happy" level from volume expansion, some water splashes out the overflow due to turbulance. Just drop a stainless or brass large head nail into the overflow tube to prevent this. NO it WON"T pressurize the system as the nail does a little "happy dance" from engine vibrations. WORKED for me! Look at the water flow in radiator when you rev it up, it churns through at 900 MPH! Nail trick is an ooooold PROVEN cure for water loss, Claude said so! Bill W.

eagle · 02-02-2013, 10:34 PM

Roland. That makes sense. Depending on how much vacuum is being created, it could definitely drop the boiling point considerably. My old model T had an original aftermarket water pump on it. I think it generated about as much flow as stirring a paint can with a matchstick.

02-02-2013, 12:53 PM	#21
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Grinding down impeller When I was flushing the rusty vinegar treatment from my Model A, I started and reved the motor to see if the drain valve would quit flowing and start sucking air, and it did.

02-02-2013, 04:03 PM	#22
BILL WILLIAMSON Senior Member Join Date: Dec 2010 Location: FRESNO, CA Posts: 12,560	Re: Grinding down impeller Even after your radiator seeks it's "happy" level from volume expansion, some water splashes out the overflow due to turbulance. Just drop a stainless or brass large head nail into the overflow tube to prevent this. NO it WON"T pressurize the system as the nail does a little "happy dance" from engine vibrations. WORKED for me! Look at the water flow in radiator when you rev it up, it churns through at 900 MPH! Nail trick is an ooooold PROVEN cure for water loss, Claude said so! Bill W. __________________ "THE ASSISTANT GURU OF STUFF"

02-02-2013, 10:34 PM	#23
eagle Senior Member Join Date: Aug 2011 Location: Eagle Bend, MN Posts: 2,025	Re: Grinding down impeller Roland. That makes sense. Depending on how much vacuum is being created, it could definitely drop the boiling point considerably. My old model T had an original aftermarket water pump on it. I think it generated about as much flow as stirring a paint can with a matchstick.