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To positively determine if the problem lies with the operating system or th=
e unit itself it's best to run it with the gearbox cover off and operate th=
e checking lever.
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of William Atterbu=
ry via Healeys <healeys@autox.team.net>
Sent: Thursday, 17 September 2026 18:41:26
To: healeys@autox.team.net <healeys@autox.team.net>
Subject: Re: [Healeys] Seeking List Wisdom
Hey Bob,
Doesn't sound like the pump - 400 psi is good, but this can be removed/rese=
aled in situ.
Your clue would be that it might engage at high roadspeed but not at low.
I had a solenoid that was 'weak' and behaved like yours. It functioned, bu=
t resistance was high and pull force was low.
It might throw but have marginal force to open the ball valve when under pr=
essure.
Best way to isolate this is to check resistance or current of the solenoid.
Good Luck!
------------------------------
Date: Thu, 17 Sep 2026 09:13:35 -0700
Subject: [Healeys] Seeking List Wisdom
84-b253-4e6a-aea9-e24752184cc3@comcast.net>>
I've had an intermittent issue with my BJ8 O/D. It doesn't engage
reliably, but does maybe 1 out of 10 attempts. I think I've ruled out
electrical issues, as the solenoid activates reliably. I checked the
hydraulic pressure, it's just under 400 PSI. I know that's low per the
shop manual (470-490), but it has worked reliably for years and had the
same pressure after an overhaul.
Q1: Any ideas why it has stopped engaging after years and thousands of
miles?
Q2: If it's the pump, can these be changed out in situ?
TIA,
Bob
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<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
>
</head>
<body>
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-=
system, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(3=
3, 33, 33);">
To positively determine if the problem lies with the operating system or th=
e unit itself it's best to run it with the gearbox cover off and operate th=
e checking lever. </div>
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Robot=
o, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33, 33, 33);" =
dir=3D"auto">
<br>
</div>
<div id=3D"ms-outlook-mobile-body-separator-line" data-applydefaultfontstyl=
es=3D"true" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system=
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<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Robot=
o, Arial, Helvetica, sans-serif; font-size: 12pt;" dir=3D"auto">
<br>
</div>
</div>
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Robot=
o, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33, 33, 33);" =
id=3D"ms-outlook-mobile-signature" dir=3D"auto">
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Robot=
o, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33, 33, 33);" =
dir=3D"auto">
<br>
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</div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of William Atterbury via Healeys <he=
aleys@autox.team.net><br>
<b>Sent:</b> Thursday, 17 September 2026 18:41:26<br>
<b>To:</b> healeys@autox.team.net <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Seeking List Wisdom</font>
<div> </div>
</div>
<div>
<div class=3D"x_yahoo-style-wrap" style=3D"font-family:Helvetica Neue,Helve=
tica,Arial,sans-serif; font-size:16px">
<div class=3D"x_ydpb2e912b7yahoo-style-wrap" style=3D"font-family:Helvetica=
Neue,Helvetica,Arial,sans-serif; font-size:16px">
<div></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">Hey B=
ob,</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">Doesn=
't sound like the pump - 400 psi is good, but this can be removed/resealed =
in situ.</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">Your =
clue would be that it might engage at high roadspeed but not at low.</span>=
</div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px"><br>
</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">I had=
a solenoid that was 'weak' and behaved like yours. It functioned, bu=
t resistance was high and pull force was low.</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">It mi=
ght throw but have marginal force to open the ball valve when under pressur=
e.</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px"><br>
</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">Best =
way to isolate this is to check resistance or current of the solenoid.</spa=
n></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px"><br>
</span></div>
<div dir=3D"ltr" data-setdir=3D"false"><span style=3D"font-size:13px">Good =
Luck!</span></div>
<div dir=3D"ltr" data-setdir=3D"false">
<div>
<div dir=3D"ltr">------------------------------<br>
</div>
<div dir=3D"ltr"><span style=3D"font-size:13px">Date: Thu, 17 Sep 2026 09:1=
3:35 -0700</span></div>
</div>
</div>
</div>
<div id=3D"x_ydpe4981f03yahoo_quoted_0398828782" class=3D"x_ydpe4981f03yaho=
o_quoted">
<div style=3D"font-family:'Helvetica Neue',Helvetica,Arial,sans-serif; font=
-size:13px">
<div>
<div dir=3D"ltr">From: Bob Spidell <<a href=3D"mailto:bspidell@comcast.n=
et" rel=3D"nofollow" target=3D"_blank">bspidell@comcast.net</a>><br>
</div>
<div dir=3D"ltr">To: Healeys <<a href=3D"mailto:healeys@autox.team.net"; =
rel=3D"nofollow" target=3D"_blank">healeys@autox.team.net</a>><br>
</div>
<div dir=3D"ltr">Subject: [Healeys] Seeking List Wisdom<br>
</div>
<div dir=3D"ltr">Message-ID: <<a href=3D"mailto:a0c0f784-b253-4e6a-aea9-=
e24752184cc3@comcast.net" rel=3D"nofollow" target=3D"_blank">a0c0f784-b253-=
4e6a-aea9-e24752184cc3@comcast.net</a>><br>
</div>
<div dir=3D"ltr">Content-Type: text/plain; charset=3DUTF-8; format=3Dflowed=
<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">I've had an intermittent issue with my BJ8 O/D. It doesn't=
engage <br>
</div>
<div dir=3D"ltr">reliably, but does maybe 1 out of 10 attempts. I think I'v=
e ruled out
<br>
</div>
<div dir=3D"ltr">electrical issues, as the solenoid activates reliably. I c=
hecked the
<br>
</div>
<div dir=3D"ltr">hydraulic pressure, it's just under 400 PSI. I know that's=
low per the
<br>
</div>
<div dir=3D"ltr">shop manual (470-490), but it has worked reliably for year=
s and had the
<br>
</div>
<div dir=3D"ltr">same pressure after an overhaul.<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Q1: Any ideas why it has stopped engaging after years and =
thousands of
<br>
</div>
<div dir=3D"ltr">miles?<br>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">Q2: If it's the pump, can these be changed out in situ?<br=
>
</div>
<div dir=3D"ltr"><br>
</div>
<div dir=3D"ltr">TIA,<br>
</div>
<div dir=3D"ltr">Bob<br>
</div>
<div dir=3D"ltr"><br>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
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