<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div class="ydpb2e912b7yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
<div dir="ltr" data-setdir="false"><span style="font-size: 13px;">Hey Bob,</span></div><div dir="ltr" data-setdir="false"><span style="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="ltr" data-setdir="false"><span style="font-size: 13px;">Your clue would be that it might engage at high roadspeed but not at low.</span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;">I had a solenoid that was 'weak' and behaved like yours. It functioned, but resistance was high and pull force was low.</span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;">It might throw but have marginal force to open the ball valve when under pressure.</span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;">Best way to isolate this is to check resistance or current of the solenoid.</span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;"><br></span></div><div dir="ltr" data-setdir="false"><span style="font-size: 13px;">Good Luck!</span></div><div dir="ltr" data-setdir="false"><div><div dir="ltr">------------------------------<br></div><div dir="ltr"><span style="font-size: 13px;">Date: Thu, 17 Sep 2026 09:13:35 -0700</span></div></div></div></div><div id="ydpe4981f03yahoo_quoted_0398828782" class="ydpe4981f03yahoo_quoted"><div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;"><div><div dir="ltr">From: Bob Spidell <<a href="mailto:bspidell@comcast.net" rel="nofollow" target="_blank">bspidell@comcast.net</a>><br></div><div dir="ltr">To: Healeys <<a href="mailto:healeys@autox.team.net" rel="nofollow" target="_blank">healeys@autox.team.net</a>><br></div><div dir="ltr">Subject: [Healeys] Seeking List Wisdom<br></div><div dir="ltr">Message-ID: <<a href="mailto:a0c0f784-b253-4e6a-aea9-e24752184cc3@comcast.net" rel="nofollow" target="_blank">a0c0f784-b253-4e6a-aea9-e24752184cc3@comcast.net</a>><br></div><div dir="ltr">Content-Type: text/plain; charset=UTF-8; format=flowed<br></div><div dir="ltr"><br></div><div dir="ltr">I've had an intermittent issue with my BJ8 O/D. It doesn't engage <br></div><div dir="ltr">reliably, but does maybe 1 out of 10 attempts. I think I've ruled out <br></div><div dir="ltr">electrical issues, as the solenoid activates reliably. I checked the <br></div><div dir="ltr">hydraulic pressure, it's just under 400 PSI. I know that's low per the <br></div><div dir="ltr">shop manual (470-490), but it has worked reliably for years and had the <br></div><div dir="ltr">same pressure after an overhaul.<br></div><div dir="ltr"><br></div><div dir="ltr">Q1: Any ideas why it has stopped engaging after years and thousands of <br></div><div dir="ltr">miles?<br></div><div dir="ltr"><br></div><div dir="ltr">Q2: If it's the pump, can these be changed out in situ?<br></div><div dir="ltr"><br></div><div dir="ltr">TIA,<br></div><div dir="ltr">Bob<br></div><div dir="ltr"><br></div></div>
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