[Healeys] OIL PRESSURE

[Al Fuller]

Agreed. Rocker shaft wear is easy to check - just warm up the engine then
idle it with the rocker cover removed.

Proper function will have oil dribbling over the rockers, while worn shaft
will spurt oil into the air. One of my Healeys shot oil up to the bonnet
underside!

________________
Sent from my phone
Best Regards,
Al Fuller

On Mon, Jul 21, 2025, 12:57 PM Harold Manifold <manifold at telus.net> wrote:

> Hi Carl and Gerry,
>
> The oil pressure might be a bit low once the oil gets hot.
>
> What grade of oil are you currently using? The cold start pressures you
> mentioned sound perfectly normal, which indicates that your oil pump and
> oil release valve are functioning correctly. Until the release valve opens,
> the pressure is determined by the resistance within the oil distribution
> system.
>
> At low RPMs and with hot oil, wear on the rocker shaft could be a possible
> cause for the pressure drop.
>
> Best,
> Harold
>
>
> On Mon, Jul 21, 2025 at 11:27 AM carl and gerry rubino via Healeys <
> healeys at autox.team.net> wrote:
>
>> COLD START 60 LBS. DRIVEE ACROSS TOWN 50, ON HIGHWAY 60, BACK IN TOWN
>> DROPS TO 20 IN 3RD GEAAR, 30 IN SECOND GEAR,
>>
>> IS THIS S A PROOBLEM?
>>
>> NO OIL LEAKS ANYWHERE-DIPO STITICK SAYS "ok"
>>
>> 1957 BN-4
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