[Healeys] Oscillating oil pressure needle

[Michael Salter]

Hi Rich,  the adaptor fitting in the block to which the oil pressure gauge line connects (1G1814) has a very small restrictor hole through which the oil pressure is fed to the gauge.
If someone,  in a misguided attempt to improve oil pressure,  drilled out that restrictor (they live among us folks) the gauge can behave as you describe.

M


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From: Healeys <healeys-bounces at autox.team.net> on behalf of Richard Antal via Healeys <healeys at autox.team.net>
Sent: Monday, August 18, 2025 5:41:36 PM
To: Healeys <healeys at autox.team.net>
Subject: [Healeys] Oscillating oil pressure needle

Fellow Healeyphiles,
     Today my '65 BJ8 showed a rapidly oscillating oil pressure needle whether at idle or at speed. Oil level normal says the dipstick. The oil pump probably has 130K of use. Is this new finding a harbinger of worse things to come? Need I do anything about it? Thanks for any advice offered.
Rich Antal
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