This is a multipart message in MIME format.
--===============3411154081276490699==
boundary="----=_NextPart_000_006B_01D470EF.2F78D650"
Content-Language: en-gb
This is a multipart message in MIME format.
------=_NextPart_000_006B_01D470EF.2F78D650
charset="utf-8"
Content-Transfer-Encoding: quoted-printable
As a matter of interest, from memory the Repco engine service manual =
says 10PSI oil pressure per 1000 RPM. As Mike says you need very little =
pressure at idle, there are plenty of engines that get as low as 10 PSI =
at idle. Also the 6 cylinder rotary oil pump is actually a version of =
the early Austin A70 oil pump. The outer ring is interchangeable. My =
Austin A70 Ute has one of these pumps and has hot oil pressure of 40 PSI =
at Idle and 70 PSI at 3000 RPM. Naturally pressure will change depending =
on the speed that the engine runs the pump at. Later A70=E2=80=99s and =
Healey 100=E2=80=99s seem to have all run the gear pump. It could simply =
be that it was cheaper to make, but it could also be that the rotary =
pump may consume more power, but as both pumps only deliver pressure up =
to the point the relief valves opens I doubt it. It is interesting that =
Austin decided that the same pump capacity was suitable for both the 4 =
and 6 cylinder engines.
Regards
Larry Varley
=20
------=_NextPart_000_006B_01D470EF.2F78D650
charset="utf-8"
Content-Transfer-Encoding: quoted-printable
<html xmlns:v=3D"urn:schemas-microsoft-com:vml" =
xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml"; =
xmlns=3D"http://www.w3.org/TR/REC-html40";><head><meta =
http-equiv=3DContent-Type content=3D"text/html; charset=3Dutf-8"><meta =
name=3DGenerator content=3D"Microsoft Word 14 (filtered =
medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
h2
{mso-style-priority:9;
mso-style-link:"Heading 2 Char";
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:18.0pt;
font-family:"Times New Roman","serif";
font-weight:bold;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
pre
{mso-style-priority:99;
mso-style-link:"HTML Preformatted Char";
margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
span.Heading2Char
{mso-style-name:"Heading 2 Char";
mso-style-priority:9;
mso-style-link:"Heading 2";
font-family:"Cambria","serif";
color:#4F81BD;
font-weight:bold;}
span.HTMLPreformattedChar
{mso-style-name:"HTML Preformatted Char";
mso-style-priority:99;
mso-style-link:"HTML Preformatted";
font-family:Consolas;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>As a matter of interest, from memory the Repco engine service manual =
says 10PSI oil pressure per 1000 RPM. As Mike says you need very little =
pressure at idle, there are plenty of engines that get as low as 10 PSI =
at idle. Also the 6 cylinder rotary oil pump is actually a version of =
the early Austin A70 oil pump. The outer ring is interchangeable. My =
Austin A70 Ute has one of these pumps and has hot oil pressure of 40 PSI =
at Idle and 70 PSI at 3000 RPM. Naturally pressure will change depending =
on the speed that the engine runs the pump at. Later A70=E2=80=99s and =
Healey 100=E2=80=99s seem to have all run the gear pump. It could simply =
be that it was cheaper to make, but it could also be that the rotary =
pump may consume more power, but as both pumps only deliver pressure up =
to the point the relief valves opens I doubt it. It is interesting that =
Austin decided that the same pump capacity was suitable for both the 4 =
and 6 cylinder engines.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Regards<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Larry Varley<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p> </o:p></span></p></div></body></html>
------=_NextPart_000_006B_01D470EF.2F78D650--
--===============3411154081276490699==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
--===============3411154081276490699==--
|