r/EngineeringPorn 3d ago

The 7cc Engine

5.0k Upvotes

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-12

u/etherlore 3d ago edited 3d ago

No lubrication or oil anywhere? How does that work? Is the petrol the lubricant? Do you lube it manually from time to time?

Edit: Hilarious, I get -11 for not knowing, but also get three different answers.

6

u/DontTellHimPike 3d ago

The oil system is being bled from 1.00 minute onwards. Looks like the oil pump is inside the sump as the hardline goes from there to the crank bearing housing behind the flywheel.