[Healeys] Sprite question for my neighbor

[Michael Salter]

Hi Steve, what you describe sounds to me like excessive blow-by.
I would recommend a compression test before going too much further.

M


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From: Healeys <healeys-bounces at autox.team.net> on behalf of Steven Kingsbury via Healeys <healeys at autox.team.net>
Sent: Saturday, November 15, 2025 3:33:19 PM
To: Healey Mail List <healeys at autox.team.net>
Subject: [Healeys] Sprite question for my neighbor

My neighbor bought a bugeye that had a 1275 engine put in it. It runs well, but blows oil like crazy out of the oil cap on the valve cover. It does not have a timing cover ventilation valve, but a fitting was made to fit onto where the old fuel pump fit on the side of the crankcase/block. When he hooked the hose from that fitting to the carbs, oil was no longer being blown out, but oil was then being sucked into the carbs and he was burning oil like crazy.

It seems the pressure in the crankcase is so great it is pushing oil up the push rods into the rocker assembly, out the filler cap and all over the engine. I'm not familiar with the 1275 and have no ideas on how to vent the pressure in the crankcase. Can anyone of you guys point me to a possible solution? Thanks in advance for the advice.
Steven Kingsbury
BN1
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