Cylinder Compressions

The engine has 77,770 original miles, and all four cylinders show exactly 135 PSI on compression test. A good compression or a 1976 MGB engine is 120-150 PSI, but consistency between cylinders is more important than the exact numbers.

Readings of 125-130 PSI are considered good.

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Engine Cold Start

The engine, on cold start runs at about 5.5 bars of oil pressure (80 PSI). Once it warms up to operating temperature it will hover around 5 bars (72.5 PSI).

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Engine Slow Idle @ 900 RPM

Engine is rock steady at slow idle. No shaking observed.

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Dashboard Slow Idle @ 900 RPM

Engine warmed up to normal operating temperature and idling at 900 RPM. Oil pressure is sitting at at 5 bars (72.5 PSI)

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Slow Idle – Exhaust Tone

You will notice that there is a smooth exhaust sound, albeit a bit sporty, coming from the full length, triple chromed muffler/tailpipe.

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