R56 Guess what happened to this N14 engine...
4th Gear
Joined: Sep 2018
Posts: 520
Likes: 100
From: Germany
Bugger!
As pretty and cool as these cars are, their engines sure have some major design "inefficiencies" (to put it mildly). Timing chain and guides which wear out surprisingly fast, non-renewable camshaft bearings, "milling" camshaft rings which with time inhibit proper lubrication of the vacuum pump (which in turn is fixed to the camshaft) to mention but a few...
As pretty and cool as these cars are, their engines sure have some major design "inefficiencies" (to put it mildly). Timing chain and guides which wear out surprisingly fast, non-renewable camshaft bearings, "milling" camshaft rings which with time inhibit proper lubrication of the vacuum pump (which in turn is fixed to the camshaft) to mention but a few...
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2nd Gear
Joined: Oct 2019
Posts: 90
Likes: 18
Dirty oil and well used vacuum pump. Internal seized and totally locked up the exhaust camshaft (when that piece of rectangular metal got bent). That happened when engine was running and the sudden lockup of the camshaft cause the bolt of the sprocket breaking off and the sprocket off the camshaft. Instantly we have valves kissing pistons.
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