[Healeys] BJ8 heater flow?

David Nock healeydoc at gmail.com
Mon Oct 12 11:45:38 MDT 2015


The cooling system has equal pressure on both side of the heater valve. So it cant be a pressure thing.

I have hooked up the hoses at the heater valve backwards because they fit better that way and the heater would not get hot.


David Nock
healeydoc at sbcglobal.net
209 948 8767
www.britishcarspecialists.com

From: Bob Spidell 
Sent: Monday, October 12, 2015 9:56 AM
To: healeys 
Subject: Re: [Healeys] BJ8 heater flow?

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


Because the 'return' line would be pressurized?



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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


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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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