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MOTRS

Midget

1961-1979 / Roadster / United Kingdom

Critical Engine -- A-Series (948, 1098, 1275)

Oil Leaks

Symptoms

Oil on the engine, oil on the ground, oil smell from the exhaust manifold.

Cause

Every gasket and seal on the A-series hardens and leaks with age. The rear main seal is a scroll-type design that relies on engine oil viscosity to maintain its seal -- it is not a positive seal and will always weep slightly.

Fix

Systematic reseal.

Replace all gaskets and seals.

The rear main seal can only be replaced with the engine out or the gearbox removed.

Full reseal: $150--300 DIY, $500--1,000 at a workshop.

Cost mentioned in fix
$150$500

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