Calling all HMS engine builders...

[A.K. Boomer]

I been keeping my eyes open actually for a couple of years now and nobody's getting rid of these things most likely cuz their Stihls and expensive to start with, plus id need two of them,

I could go for perfect balance and run two separate cranks geared together, and just build an adaptor crankcase,,, or go opposed conventional, and have to build or couple the two cranks together and accept a little "block rock" imbalance, no big whoop,

If the charge ended up actually being copious and too much for low RPM's creating spark knock or worse yet detonation - I could build a separate crankcase "block piston" with O-ring seal that is centrifugally engaged to expand inward at higher RPM's and pulled back out of the block some for lower ranges, making more room in the crankcase would create a much lazier supercharging effect...

https://www.stihl.com/4-mix-engine-lightweight-and-with-good-lugging-power.aspx

[The Artful Bodger]

It is actually pretty simple, and you should be able to imagine the method used before actually seeing the diagram of it (which you can find in under 2 minutes on line). There are only a few possible methods, given the way the engine is made. Mechanically, it is not a good method, IMO, but.......

Relics indicate he tried at least two methods.

[The Artful Bodger]

If one's interest runs towards balanced engines they should be interested in the works of George Lanchester https://historicvehicles.com.au/hist...ds/lanchester/

[J Tiers]

Relics indicate he tried at least two methods.

I only found one diagrammed.

[JRouche]

It is actually pretty simple, and you should be able to imagine the method used before actually seeing the diagram of it (which you can find in under 2 minutes on line). There are only a few possible methods, given the way the engine is made. Mechanically, it is not a good method, IMO, but.......

Sorry Jerry, I have a few problems with it.

I read through all of it, its plausible but not quantified yet.

You cant sell it saying chit like I imagine so, I imagine it to be correct. Those terms dont work. JR

[J Tiers]

Sorry Jerry, I have a few problems with it.

I read through all of it, its plausible but not quantified yet.

You cant sell it saying chit like I imagine so, I imagine it to be correct. Those terms dont work. JR

I found a diagram of the method, which agrees with the pictures and so forth. It was also about what I had "imagined" from the other pics that don;t show the complete thing.

You KNOW, right, that it was about 120 years ago, and probably nobody will ever know more about it than the stuff which has been found so far shows..... Yeah, speculation works as well as anything else in that case.

If you have problems with all that, then I hope you are nearly done with that time machine you were working on.... Did you design it to move location as well as through time? You are gonna need it to get the certainty which you so obviously crave.

No need to be "sorry", I just don't care.... do you?