I tore apart the crankcase on the subject motor.
There's an oil drain galley / passage between
the upper and lower crankshaft main bearings.
Inside the galley is a tiny copper tubing, shaped
to fit inside of the galley.
Is this suppose to be there, or is it something someone
added? If someone decided it needed a restriction,
why not just have a short piece in the middle?
- DT-38a.JPG (186.58 KiB) Viewed 211 times
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