Parsell & Weed Horizontal IC Engine

[zeeprogrammer]

Thanks Bill!

Very clear and helpful.

[Flyboy Jim]

Thanks Bill!

Very clear and helpful.

Bill, I'll second what Carl said. Got this bookmarked in my "How To" folder.

Thanks,  Jim

[b.lindsey]

Thanks guys. For our purposes as modelers with low run time hours on most of our engines, I think that leaving the rings in the natural unhardened state is sufficient, and keeps me at least away from the black art of heat treating and then tempering properly so the rings can still be fitting over the piston without breaking due to brittleness. Would be different perhaps if I had a nice heat treat oven! In the case at hand, both of the rings I got to the completed point fit over the piston and snapped back into the ring grooves without incident and seem to be exerting enough pressure against the cylinder wall to seal properly, though proof of that remains to be seen of course.  Being down here in the heart of NASCAR country, it would be a different thing if the rings were for an 8000+ rpm racecar engine, but that is a whole different world...some amazing engineering to be sure, but well beyond my capabilities.

Bill

[Tennessee Whiskey]

Professor,  quite an ingenious ring making method and another testament to the wonders of fixturing  . I would think that the rings would actually seat and seal quicker unhardened and as you say,  we aren't gonna run them at Charlotte or Daytona  .

Cletus

[b.lindsey]

My point exactly Cletus, though for anyone interested, the next two weekends will be full of activities here at the Charlotte Motor Speedway. Probably a few blown engines along the way too. As a side note, one of the salesmen for the Haas Machine Tool distributor in Greensboro moonlights as an announcer for some of the races. Super nice guy, he has been doing it for years. Occasionally, if I had some business with him, like when I bought the two CNC machines for the school, and happened to forget it was race week, he would still call me back if only to say he was at the track and would get back to me ASAP. While I am not a race fan, I did have occasion to visit the speedway once for a tourism event and got to tour the "garage." Actually dinner was being served there and while they didn't make us, you could have eaten off the floors....they were that clean.

Dang, now I am bantering my own thread....

Bill

[zeeprogrammer]

Dang, now I am bantering my own thread....

  It's a disease. Quite contagious. Just as bad as machining models.

[b.lindsey]

Yep and I think you are the carrier Zee 

Bill

[crueby]

Yep and I think you are the carrier Zee 

Bill

 

[Dave Otto]

Hey Bill

I commented on your great thread a day or so back and I guess that I hit the wrong button and it never came through. Oh well I'm still sitting here out west enjoying your continuing progress on this great little engine.

Dave

[b.lindsey]

Many thanks Dave. The support is greatly appreciated.

Bill

[Don1966]

Hi Bill still with you buddy and the parts are looking great. Sorry I am not up to everything happening but hope you understand my situation right now.

Don

[b.lindsey]

Always glad to have you check in Don. Hope things are going ok with you.

Bill

[b.lindsey]

There is another part that needs doing and some of it can be done on the Sherlines...that is the crank handle. Just for fun I started out on the brass handle. After turning some of the major diameters along its length, the rest was mainly done with hand filing and smoothing. Just a couple of pictures below of the finished piece.

Bill

[Tennessee Whiskey]

Looks like you've got a handle on it Professor.  Nice

Cletus

[rudydubya]

Well-handled, Bill.  Nice.

Regards,
Rudy