[Healeys] BJ8 heater flow?

[Bob Spidell]

"For some reason the water will not go backwards thru the heater valve on the heater box." 

Because the 'return' line would be pressurized? 

----- Original Message -----

From: "David Nock" <healeydoc at gmail.com> 
To: "Mike Garvey" <r3m1g4 at verizon.net>, "healeys" <Healeys at autox.team.net>, "Michael" <michael.salter at gmail.com> 
Sent: Monday, October 12, 2015 8:29:38 AM 
Subject: Re: [Healeys] BJ8 heater flow? 

The water for the heater travels from the valve on the side of the cylinder head to the heater valve on the heater. Then thru the heater to the lower radiator hose. 
If you connect the heater valve on the heater box to the lower radiator hose the water will not flow thru the heater. For some reason the water will not go backwards thru the heater valve on the heater box. 
David Nock 
healeydoc at sbcglobal.net 
209 948 8767 
www.britishcarspecialists.com 
From: Michael 
Sent: Saturday, October 10, 2015 1:10 PM 
To: Mike Garvey ; Healeys at autox.team.net 
Subject: Re: [Healeys] BJ8 heater flow? 
Hi Mike, 
The radiator hose on the water pump carries coolant INTO the water pump. 
Therefore the flow through the heater core goes back into the cooling system at the lower radiator hose. 

Michael S 
BN1 #174 

From: Mike Garvey 
Sent: ‎10/‎10/‎2015 1:26 p.m. 
To: Healeys at autox.team.net 
Subject: [Healeys] BJ8 heater flow? 



Usually I am trying to cool the cockpit, but recently, as fall weather comes into play, my copilot has expressed the need for more heat. The heater seems not be doing such a good job and as part of my troubleshooting it would be helpful to know which way the coolant (heatant?) flows: from the water pump to the heater core of from the engine to the heater core? 

Thanks, Mike 



Michael Garvey 
1967 BJ8/38046 
Swampscott, MA 


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