I was gifted part of a hit and miss engine

[compressor man]

A friend of mine just gave me this very nice hit and miss. He knew absolutely nothing about it and I am hoping someone here will be familier with it. It is missing the head and everything that goes on the head and I do not know if there is supposed to be rings in the piston or not. I would like to find the parts for it or at least some drawings of the missing parts.

 

[Jasonb]

Looks like an Olds by Paul Briesch

 

[GreenTwin]

Briesch Olds.
The guy who built this one changed the letter from "B" to "Z", but normally it would be a "B".
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[SmithDoor]

Briesch Olds.
The guy who built this one changed the letter from "B" to "Z", but normally it would be a "B".
.
View attachment 164287

I have want to build one since 1970’s
I have plans and 8" cast iron flywheel and bar stock read for one.

Looks Fantastic​

​

Lucky guy

Dave

 

[Bessemer20]

This is the gentleman who is now selling the castings. Michael Pershinsky. PO Box 382, East Petersburg, Pa 17520 USA. (717-676-8115) [email protected] Casting kits, Associated 1/3 scale "Hired Man" Hopper Cooled or Air Cooled versions with 6-1/4" diameter flywheels with Spark Plug ignition or Make and Break ignition. Olds 1/2 scale hit & miss engine with 8-1/4" diameter flywheels. Please e-mail before ordering to make sure I have castings in stock.

 

[Chiptosser]

You matbe able to buy the head casting and other castings that you are missing, plus the plans from the current person selling the kits.

 

[rklopp]

Yup, Breisch Olds. It's a model of a Type R. I built one toward the end of COVID, which afforded more time in the shop. Yours probably won't run without piston rings. The oiler is my own design from an early 1900s patent drawing. The engine was fairly straightforward to build, with the usual mess of machining cast iron. It's big, and requires "real" machine tools due to its size.

 

[compressor man]

This is the gentleman who is now selling the castings. Michael Pershinsky. PO Box 382, East Petersburg, Pa 17520 USA. (717-676-8115) [email protected] Casting kits, Associated 1/3 scale "Hired Man" Hopper Cooled or Air Cooled versions with 6-1/4" diameter flywheels with Spark Plug ignition or Make and Break ignition. Olds 1/2 scale hit & miss engine with 8-1/4" diameter flywheels. Please e-mail before ordering to make sure I have castings in stock.

Thanks! Good info here

 

[compressor man]

This is the gentleman who is now selling the castings. Michael Pershinsky. PO Box 382, East Petersburg, Pa 17520 USA. (717-676-8115) [email protected] Casting kits, Associated 1/3 scale "Hired Man" Hopper Cooled or Air Cooled versions with 6-1/4" diameter flywheels with Spark Plug ignition or Make and Break ignition. Olds 1/2 scale hit & miss engine with 8-1/4" diameter flywheels. Please e-mail before ordering to make sure I have castings in stock.

This worked by the way, I have the needed parts in hand

Thanks Bessemer20!

 

[Bessemer20]

This worked by the way, I have the needed parts in hand

Thanks Bessemer20!

No problem. He helped me get the drawings when I bought my kit.

 

[compressor man]

No problem. He helped me get the drawings when I bought my kit.

Did you build it or know of a viewable build? I am looking at the drawings and the machining on the head is a little confusing to me. I would give much to see an internal view of the finished head. I have not been able to find any info online yet

 

[Bessemer20]

Did you build it or know of a viewable build? I am looking at the drawings and the machining on the head is a little confusing to me. I would give much to see an internal view of the finished head. I have not been able to find any info online yet

I am building it but have a complete running engine that belongs to my dad.

 

[GreenTwin]

Here is the plan for the head, and a photo.
I have not built one, but seems pretty straightforward, ie: carb on the bottom, exhaust out the top, spark plug to one side of the two valves.

I have one, but don't really want to pull the head off.
Looking into the inside of the head, would be like the view in red below, hatched area I guess is flat, and protruded a bit into the bore ?

.

 

[rklopp]

Here's some work in progress photos from my build. The trickiest part was making and using a hollow mill to cut the annulus around the valve guides on the interior. The rounded valve spring seats on the opposite side were cut by circular profiling a ball end mill on the CNC. I used pocketed aluminum soft jaws to hold the head and added matched-length "legs" for support off a known good reference plane, which was the cylinder stud spot-faces, when working the inside features. I used the tilt table on my Aciera F5 mill when machining the spark plug threads and seat.

 

[GreenTwin]

I would have guessed that the passages were cored, but I can see they were not.
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