1928 experimental motor

Shelbycsx

Senior Member
I got this motor off eBay. It was made in July 28. I plan on rebuilding this motor when I get time.
 

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Wow! Thanks for sharing photos of your engine. The last one of these experimental engines I saw was at Hershey and it was a rusty mess. This engine is the first one I have seen the innards of. Here are my observations:
1. No oil return tube openings in the valve cover and block;
2. Oil feed tubes in the valve chamber to the front and rear;
3. 5 camshaft bearing journals;
4. Water inlet opening with a much smaller baffle.
Please post some more photos of this engine.
 
Here is some more "scoop" on these engines:

Another interesting cylinder block
feature was that there were a nu
mber of special experimental
engines (between 1353 and 1355) that were also
produced between July 9, 1928 and October 2,
1928. These special cylinder blocks did not incl
ude the A-6645 oil return pipe assembly, along
with the oil return pipe connections on the A-6015 cylinder block and the A-6520 valve chamber
2
cover. The addition of oil return holes were drilled on the floor of the valve chamber to allow the
oil to drain back into the oil pan along with other special features.
 
When I saw the title all I could think of was,

Every time I touch a motor, it is an experiment.
Sometimes it succeeds and sometimes it fails.

Sorry I couldn’t help myself.
I have little self control left.
 
Does the oil return from valve chamber to pan by over flowing the boss located between #4 cylinder lifter bosses?
 
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