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Yes, I'm sure that Steve is absolutely correct and believe that the theory
is that the combination of the air in the line and the small hole in the
adaptor on the block produces a "compressible column" between the engine
oil gallery and the gauge which, although it makes the gauge a little
slower to react, serves to dampen any oscillation caused by the oil pump or
the relief valve.
Bleeding the gauge line, although because of the changing
characteristics of the column may change the situation, would not normally
aid in dampening the gauge.
M
On Tue, Aug 19, 2025 at 9:09=E2=80=AFAM sbyers--- via Healeys <
healeys@autox.team.net> wrote:
> During my return from Conclave 2008 in San Diego, my oil pressure gauge
> needle began oscillating. Investigating behind the dash, I saw a drop
> of oil hanging on the oil pressure line nut. I surmised that the nut had
> loosened and the oil pressure had pushed out any air in the line that cou=
ld
> dampen pressure pulses. I disconnected the line from the gauge and then
> reconnected it. Problem solved. Hasn=E2=80=99t happened since.
>
>
>
> Steve Byers
>
> HBJ8L/36666
>
> BJ8 Registry
>
> AHCA Delegate at Large
>
> Havelock, NC USA
>
>
>
> *From:* Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Richard
> Antal via Healeys
> *Sent:* Monday, August 18, 2025 5:42 PM
> *To:* Healeys <healeys@autox.team.net>
> *Subject:* [Healeys] Oscillating oil pressure needle
>
>
>
> Fellow Healeyphiles,
>
> Today my '65 BJ8 showed a rapidly oscillating oil pressure needle
> whether at idle or at speed. Oil level normal says the dipstick. The oil
> pump probably has 130K of use. Is this new finding a harbinger of worse
> things to come? Need I do anything about it? Thanks for any advice offere=
d.
>
> Rich Antal
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
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>
> Archive: http://www.team.net/pipermail/healeys
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>
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>
> Unsubscribe/Manage:
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>
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,sa=
ns-serif;font-size:small">Yes, I'm sure that Steve is absolutely correc=
t and believe that the theory is that the combination of the air in the lin=
e and the small hole in the adaptor on the block produces a "compressi=
ble column" between the engine oil gallery=C2=A0and the gauge which, a=
lthough it makes the gauge a little slower to react, serves to dampen any o=
scillation=C2=A0caused by the oil pump or the relief valve.=C2=A0</div><div=
class=3D"gmail_default" style=3D"font-family:arial,sans-serif;font-size:sm=
all">Bleeding the gauge line, although because of the changing characterist=
ics=C2=A0of the column=C2=A0may change the situation, would not normally ai=
d in dampening the gauge.</div><div class=3D"gmail_default" style=3D"font-f=
amily:arial,sans-serif;font-size:small"><br></div><div class=3D"gmail_defau=
lt" style=3D"font-family:arial,sans-serif;font-size:small">M</div></div><br=
><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D=
"gmail_attr">On Tue, Aug 19, 2025 at 9:09=E2=80=AFAM sbyers--- via Healeys =
<<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>>=
; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px=
0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div cl=
ass=3D"msg-2886357048249163117"><div lang=3D"EN-US" style=3D"overflow-wrap:=
break-word;"><div class=3D"m_-2886357048249163117WordSection1"><p class=3D=
"MsoNormal"><font size=3D"2" face=3D"Aptos"><span style=3D"font-size:11pt">=
During my return from Conclave 2008 in<span>=C2=A0 </span>San<span>=C2=A0 <=
/span>Diego, my oil pressure gauge needle began oscillating.<span>=C2=A0=C2=
=A0 </span>Investigating behind the dash, I saw a drop of oil hanging on th=
e oil pressure line nut.<span>=C2=A0 </span>I surmised that the nut had loo=
sened and the oil pressure had pushed out any air in the line that could da=
mpen pressure pulses.<span>=C2=A0 </span>I disconnected the line from the g=
auge and then reconnected it.<span>=C2=A0 </span>Problem solved.<span>=C2=
=A0 </span>Hasn=E2=80=99t happened since.<u></u><u></u></span></font></p><p=
class=3D"MsoNormal"><font size=3D"2" face=3D"Aptos"><span style=3D"font-si=
ze:11pt"><u></u>=C2=A0<u></u></span></font></p><p class=3D"MsoNormal"><font=
size=3D"2" face=3D"Aptos"><span style=3D"font-size:11pt">Steve Byers<u></u=
><u></u></span></font></p><p class=3D"MsoNormal"><font size=3D"2" face=3D"A=
ptos"><span style=3D"font-size:11pt">HBJ8L/36666<u></u><u></u></span></font=
></p><p class=3D"MsoNormal"><font size=3D"2" face=3D"Aptos"><span style=3D"=
font-size:11pt">BJ8 Registry<u></u><u></u></span></font></p><p class=3D"Mso=
Normal"><font size=3D"2" face=3D"Aptos"><span style=3D"font-size:11pt">AHCA=
Delegate at Large<u></u><u></u></span></font></p><p class=3D"MsoNormal"><f=
ont size=3D"2" face=3D"Aptos"><span style=3D"font-size:11pt">Havelock, NC<s=
pan>=C2=A0 </span>USA<u></u><u></u></span></font></p><p class=3D"MsoNormal"=
><font size=3D"2" face=3D"Aptos"><span style=3D"font-size:11pt"><u></u>=C2=
=A0<u></u></span></font></p><div><div style=3D"border-width:1pt medium medi=
um;border-style:solid none none;border-color:rgb(225,225,225) currentcolor =
currentcolor;padding:3pt 0in 0in"><p class=3D"MsoNormal"><b><font size=3D"2=
" face=3D"Calibri"><span style=3D"font-size:11pt;font-family:"Calibri&=
quot;,sans-serif;font-weight:bold">From:</span></font></b><font size=3D"2" =
face=3D"Calibri"><span style=3D"font-size:11pt;font-family:"Calibri&qu=
ot;,sans-serif"> Healeys <<a href=3D"mailto:healeys-bounces@autox.team.n=
et" target=3D"_blank">healeys-bounces@autox.team.net</a>> <b><span style=
=3D"font-weight:bold">On Behalf <span class=3D"m_-2886357048249163117GramE"=
>Of</span> </span></b>Richard Antal via Healeys<br><b><span style=3D"font-w=
eight:bold">Sent:</span></b> Monday, August 18, 2025 5:42 PM<br><b><span st=
yle=3D"font-weight:bold">To:</span></b> Healeys <<a href=3D"mailto:heale=
ys@autox.team.net" target=3D"_blank">healeys@autox.team.net</a>><br><b><=
span style=3D"font-weight:bold">Subject:</span></b> [Healeys] Oscillating o=
il pressure needle<u></u><u></u></span></font></p></div></div><p class=3D"M=
soNormal"><font size=3D"3" face=3D"Aptos"><span style=3D"font-size:12pt"><u=
></u>=C2=A0<u></u></span></font></p><div><div><p class=3D"MsoNormal"><font =
size=3D"2" face=3D"Helvetica"><span style=3D"font-size:10pt;font-family:&qu=
ot;Helvetica",sans-serif">Fellow Healeyphiles,<u></u><u></u></span></f=
ont></p></div><div><p class=3D"MsoNormal"><font size=3D"2" face=3D"Helvetic=
a"><span style=3D"font-size:10pt;font-family:"Helvetica",sans-ser=
if">=C2=A0 =C2=A0 =C2=A0Today my '65 BJ8 showed a rapidly oscillating o=
il pressure needle whether at idle or at speed. Oil level normal says the d=
ipstick. The oil pump probably has 130K of use. Is this new finding a harbi=
nger of worse things to come? Need I do anything about it? Thanks for any a=
dvice offered.<u></u><u></u></span></font></p></div><div><p class=3D"MsoNor=
mal"><font size=3D"2" face=3D"Helvetica"><span style=3D"font-size:10pt;font=
-family:"Helvetica",sans-serif">Rich Antal<u></u><u></u></span></=
font></p></div></div></div></div>__________________________________________=
_____<br>
rer" target=3D"_blank">http://www.team.net/donate.html</a><br>
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Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"noreferre=
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ttp://autox.team.net/archive/healeys" rel=3D"noreferrer" target=3D"_blank">=
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</div></blockquote></div>
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