[Healeys] Seeking List Wisdom

[Bob Spidell]

Thanks, John. Something to consider, but I replaced the accumulator 
cylinder, piston and spring with DWM 'uprated' parts when I overhauled 
it (only a few thousand miles ago). My hydraulic pressure has been 
consistent and steady--on- and off-idle--but on the low side. Do you 
know what your pressure was?

Anyone else running the DWM gear?

bs



On 9/17/2026 11:52 AM, JSARCH wrote:
>
> I had a problem where my OD would engage but would stop working after 
> it heated up. It turned out to be a problem with the accumulator 
> piston assembly not holding pressure. The piston, rings and housing 
> can be removed in situ using a small piston ring expander to grip 
> against the inside walls of the housing.
>
> John,
>
> '62 BT7
>
> -----Original Message-----
> From: Healeys <healeys-bounces at autox.team.net> On Behalf Of Bob 
> Spidell via Healeys
> Sent: Thursday, September 17, 2026 9:14 AM
> To: Healeys <healeys at autox.team.net>
> Subject: [Healeys] Seeking List Wisdom
>
> 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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