BMW driver question – details of the damage to the smoothness
In my engine, the bottom of the piston was burned all the way to the ring, and the smoothness has a depression (visible in the photos), probably from the burn and fragments of the piston. The compression pressure on this cylinder was 0, and on the others it was about 16 bar and on one 14.5 bar. Before the incident, it was less than 15 bar on all of them.
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BMW driver’s question
I am writing to you about the repair or overhaul of the M52B28 engine. A 1996 production engine and therefore a single Vanos. I recently measured the compression and discovered errors on two cylinders.
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BMW driver question
I would like to ask for an opinion on the loud firing of my car. When the engine is cold, immediately after firing up I can hear a loud crunching sound for 2-3 seconds, which immediately stops. After that, everything is OK. It runs beautifully, evenly and quietly. On a warm engine it rarely happens.
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