Inline Twin Engine Ep. 5

In this episode, I’ll be continuing the work on the crankcase by making the cover for the accessory end of the engine.

First operation, face milling the top:

inline-twin-065-800x450

Spotting and drilling the hole pattern:

inline-twin-066-800x450

inline-twin-067-800x450

Roughing the contour:

inline-twin-068-800x450

Milling the counter bores:

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Finishing pass:

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And an edge break around the contour with the spot drill:

inline-twin-071-800x450

First side finished:

inline-twin-072-800x450

I decided to make the gear cover as well, as I can use the same tools and similar set ups.
Again, first step was a face cut:

inline-twin-073-800x450

Spotting and drilling:

inline-twin-074-800x450

inline-twin-075-800x450

Roughing:

inline-twin-076-800x450

Milling the relief for the screw heads:

inline-twin-077-800x450

Finishing pass:

inline-twin-078-800x450

Edge break:

inline-twin-079-800x450

First side of the gear cover done:

inline-twin-080-800x450

A set of machinable soft jaws were installed in the vise and milled out for the second side operation.

inline-twin-081-800x450

Second side of the cover finished, still in the vise:

inline-twin-082-800x450

Another pocket was milled out in the soft jaws to finish the second side of the gear cover.

inline-twin-086-800x450inline-twin-087-800x450

The finished parts:

inline-twin-083-800x450inline-twin-084-800x450inline-twin-088-800x450inline-twin-089-800x450inline-twin-090-800x450inline-twin-085-800x450

 

Thank you for visiting my shop.

If you have any questions about the engine or any of the other projects, please leave a comment below, or email at yogisworkshop(at)yahoo.com

For other projects from the shop, please check out the Projects Page in the top menu.

Yogi

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4 comments

  1. Do you have any plans for your 2 cylinder engine even very basic ones would be ok
    I would be very interested in building one

    Like

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