Single cylinder timing chain drain

Joined
Apr 16, 2025
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60
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The timing chain lubrication arrangement seems a little mad to me.
Oil can work it's way through the camshaft bush to lubricate the chain, OK, but then drips out through a pipe into the ground.
Has anyone tried drilling a small hole through the back of the chain cavity into the camshaft/timing gear cavity so the oil can drain back into the engine instead of onto the floor?
 
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