[Healeys] Keeping a Healey, and a hissing oil filler cap

[James Sailer]

Hello Team,

I recently inherited maintenance-duty for my late father's '66 BJ8. By and
large, it's in good enough condition to just require regular cleaning, fluid
checks & replacements, lubrication, etc, but I'm just starting to stumble up
the learning curve as to how to keep the beauty in tip-top shape. The
ridiculous amount of Healey-maintenance literature my father amassed should
probably help at least a little...

However, recently there has been a hissing sound coming from the engine, which
builds up slowly after starting the engine, continues while running, and
slowly dissipates after shut-down.  I've isolated it to the oil-filler cap,
which is a quick-release style (opposed to the cable-attached cap), and
pressing down on the cap while the engine's running dampens the sound a
little; oil levels are perfect.  My question is what needs to be done about
this: cap/seal replacement, or could this be a symptom of a deeper problem
that needs to be checked up on?

Best,
Logan Sailer

 '66 BJ8
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