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[Healeys] Curved or Straight

To: <healeys@autox.team.net>
Subject: [Healeys] Curved or Straight
From: "Patrick & Caroline Quinn" <p_cquinn@tpg.com.au>
Date: Sat, 25 Jan 2020 08:26:13 +1100
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
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Hello

 

Once again I am about to investigate the engine cooling of the Healey
Duncan. Nothing highly unusual with it in that it's a Riley 2.4 litre engine
and unpressurised.

 

Part of the process is to replace the existing Kenlowe electric fan with a
more modern unit. The Kenlow sits over an inch from the radiator surface
while a modern unit should only be a few millimetres. Of course it was never
fitted with an electric fan when new, but it's simply not coping with the
warmer Australian climate.

 

I will be doing all sorts of wonderful things like removing the cylinder
head to replace the cooling tube between number two and three combustion
chamber, refurbishing the radiator, rodding the block etc etc.

 

The question that's on my mind concerns whether to install an electric fan
with curved or straight blades. Australian manufacturer Davies Craig says
that straight blades are best, but they would say that as that's what they
make.

 

Anyone undertaken any research as to what's the most efficient?

 

Hoo Roo

 

Patrick Quinn

Blue Mountains, Australia

Where it's raining again - wonderful


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'>Hello<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Once again I am about to =
investigate the engine cooling of the Healey Duncan. Nothing highly =
unusual with it in that it&#8217;s a Riley 2.4 litre engine and =
unpressurised.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Part of the process is =
to replace the existing Kenlowe electric fan with a more modern unit. =
The Kenlow sits over an inch from the radiator surface while a modern =
unit should only be a few millimetres. Of course it was never fitted =
with an electric fan when new, but it&#8217;s simply not coping with the =
warmer Australian climate.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>I will be doing all =
sorts of wonderful things like removing the cylinder head to replace the =
cooling tube between number two and three combustion chamber, =
refurbishing the radiator, rodding the block etc =
etc.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>The question =
that&#8217;s on my mind concerns whether to install an electric fan with =
curved or straight blades. Australian manufacturer Davies Craig says =
that straight blades are best, but they would say that as that&#8217;s =
what they make.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Anyone undertaken any =
research as to what&#8217;s the most efficient?<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Hoo =
Roo<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New =
Roman","serif"'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Patrick =
Quinn<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Blue Mountains, =
Australia<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-family:"Times New Roman","serif"'>Where it&#8217;s raining =
again - wonderful<o:p></o:p></span></p></div></body></html>
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