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On a side note: Someone commented that the higher pressures reported
may have been caused by the owner using the O-ring style accumulator
pistons as opposed to the 'traditional' metal rings style. Though I
think the O-rings are a good idea--I would have used them if I'd
known/thought about them--I don't think that alone would necessarily
account for higher pressures. Accumulator pressure is limited by
relief holes in the bore; when the piston is pushed far enough back,
the holes are exposed and allow fluid to flow out of the accumulator
(the piston both builds pressure and regulates it). The metal ring
type pistons--they look like small engine pistons--should develop
the spec'd pressure; but the O-rings would be less likely to score
the bore and cause pressure loss over time. Or, are the metal ring
type that leaky? Two things could cause higher-than-spec pressure:
1) much stronger accumulator spring(s) or 2) an inaccurate gauge.
The oil pressure gauge on my BJ8 registered zero PSI for many
years--obviously, it had SOME pressure--but my car miraculously
gained 20PSI at idle when I had the gauge rebuilt and adjusted to a
standard (i.e. 'calibrated').<br>
<br>
On another note; just caught an episode of Wheeler Dealers where
Elvis fixed an inop O/D on a Triumph Dolomite Sprint (I had never
heard of the car before but, of course, 'Dolomite' has Healey
history). The O/D appeared to be a Laycock, but the offending
part--the solenoid, natch--was a more robust-appearing unit mounted
horizontally on the bottom of the O/D. Anyone know anything about
what, presumably, is a later Laycock unit?<br>
<br>
<br>
<div class="moz-cite-prefix">On 8/9/2023 11:39 AM, warthodson--- via
Healeys wrote:<br>
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<div dir="ltr" data-setdir="false">Dave, I found this in my Spam
file. Surely someone has an opinion concerning the 500-550
psi!</div>
<div dir="ltr" data-setdir="false">Gary Hodson </div>
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<div id="ydpe0c6e4beyahoo_quoted_1632753241"
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<div> On Wednesday, August 9, 2023 at 03:05:56 AM CDT, John
and Kerry Rowe <a class="moz-txt-link-rfc2396E" href="mailto:jtkarowe@gmail.com"><jtkarowe@gmail.com></a> wrote: </div>
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<div id="ydpe0c6e4beyiv9562235249">
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<div dir="ltr">I would be very happy with those
pressures. I wish!</div>
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<div id="ydpe0c6e4beyiv9562235249yqt70578"
class="ydpe0c6e4beyiv9562235249yqt4883648648">
<div dir="ltr"
class="ydpe0c6e4beyiv9562235249gmail_attr">On Tue,
Aug 8, 2023 at 1:39 PM David Wirken via Healeys
<<a shape="rect"
href="mailto:healeys@autox.team.net"
rel="nofollow" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">healeys@autox.team.net</a>>
wrote:<br clear="none">
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class="ydpe0c6e4beyiv9562235249gmail_quote">
<div dir="ltr">Recently overhauled OD when testing
the pressure, it measured 500 to 550 psi on the
gauge.The book says it should be 470 to 490 PSI
and drops about 80 PSI when engaged or
disengaged and jumps back up to 470 PSI very
quickly.
<div>Question is " should I be concerned about
the high numbers I am experiencing ?</div>
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<div>THANKS for your input</div>
<div><br clear="none">
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<div>Dave</div>
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