Technology, then and now....

[Dave_E71]

Dads "A" Looper and my 250 Rossi

[Dave_E71]

...

[Dave_E71]

Pop or Garys 250 Harden/Konig. (I think this one may be all Tom Harden parts)

[Dave_E71]

As I dig them out and clean them up, I'll post pictures of the 72 FA single pipe, FA double pipe, 250 piston port Yamato (my hands hurt just remembering starting it) and a 250 reed valve Yamato. The only 250 I ran that we don't have is one of the 4 cyl. Konigs.

Dave

[Chris Hellsten]

Dave,

When you clean them up and take pictures of them at least put the block on the FA the right way! :)


Chris

[Dave_E71]

Chris,
Until you said something I didn't even notice it. When I flip the block over I'll put a piston in the bottom cylinder too.
I have a half a dozen of them, maybe we could add another class.........

[David Weaver]

Chris,
Until you said something I didn't even notice it. When I flip the block over I'll put a piston in the bottom cylinder too.
I have a half a dozen of them, maybe we could add another class.........


A half-dozen FA's on E-Bay could bring-in enough money for you retire upon!! :eek:

[fbref5269]

davey,

great pictures. my question is how did you clear that much space in your garage????

og

aka frank

[epugh66]

The only 250 I ran that we don't have is one of the 4 cyl. Konigs.
Dave

Thats because Pop sold it back to us:) We got the die cast new from Dieter.

[smittythewelder]

Do you have one of the aluminum-block A Konigs?

These came out about 1968, using new crankcases but the same spindly crankshaft and the same bore-spacing as the earlier motors which had been slowly evolving since Konig's first A of about 1956 or '57. The aluminum block was superceded in a couple of years by the iron-block single-pipe version which used the same crankcase as the aluminum block. The aluminum-block version had some problems with water seeping around the thin sleeves. Worse than that was the porting arrangment which had each cylinder drawing mixture from BOTH of the 34mm carbs at once! Ron Anderson went through a couple of these engines for Dave (California guy; I'm blanking on his name) and said that they ran about as fast on one carb as two. The iron block layout solved this severe over-carburetion, with each cylnder drawing from only one carb.

I don't know how many of the aluminum-block A's got over here, and I think many of the owners replaced the block with the much better iron version when it appeared. I have one of the aluminum blocks and heads, but nothing else for it. Maybe someday i'll try to trade for the parts I need to put it together. There can't be many of these motors. Armand Hebert out of Quebec did get his running well enough to win the NOA Nationals in '68, and maybe the APBA Natl's as well.

[Mike Schmidt]

Dave Mayer..... He never got the aluminum block motor running as well as everyone though it would go. The cast iron block motor Ron built for him was a rocket. The block that Ron would not use, because of core shift, I ended up with. I did a bunch of welding on it (Tig-Tectic 2-24 wire) and it was my very best block. ( US-2 1983)

Michael D-1

(the other welder ....)

[smittythewelder]

Yeah, Dave Mayer, thought of it after I got off.

I had to weld up one of those blocks. Lee Sutter and Ron had run the engine in Wisconson, and got some phenomenal number of heats out of it without a DNF. Duane Wallick got it, ran well a couple of times, then flipped the boat and broke the block in two or three places. I had been doing some cast-iron gas-welding at the time, so repaired the block with that process. I had it all blocked-up to slow-cool, which might have been enough to get by without any stress-relieving, but no more got done with the block. Given all of the cold winters it has gone through since then, it should be well-aged now!

(the other Schmidt) (well, we were Schmidts back with my great great grandfather Fritz, who came over from Frankfurt about 170 years ago)