8/6/2019 Bash Valve

1/2

Bash Valve

While Karl Petersen was having fun developing engine and steam generator systems for steamcars at the Edwards Development Center in Santa Ana, California, Richard J. Smith continuedhis developments in Midway City. One of the information sheets he supplied to steam

enthusiasts and developers was derived from his conversion of a series of Ohlson & Rice two-stroke engines which were popular in chain saws, motorized bicycles, go-karts and gensets.**PRICES ARE FROM 1971. CAREFUL!!!!

--Richard J. Smith Automotive Steam Systems -- Research and Development

1.2 CU INCH O&R ENGINE CONVERSIONDETAILSDisassemble engine. Machine blades from flywheel. Remove all except top andbottom fin from cylinder. (Insulation is wrapped around cylinder between these two fins.)Remove plastic reeds and metal reed stops from front crankcase cover.Note! Engine will now exhaust from both the normal exhaust and the former carburetor inlet.Chuck piston carefully in lathe. Drill #5 (.205") and tap 1/4-40MPT. [miniature pipe taper] Note!

Special taps and dies this size are available from Cole's Power Models, P.O. Box 788, Ventura,Calif. 93001. [(805) 643-7065] Price for tap is $1.75 and $4.90 for die. Their most interestingcatalog is only $1.50. Include 5% sales tax. **Install lift pin to piston securely while preventing piston from turning by means of a close fittingpin inserted through wrist pin holes. Reassemble engine.Note! Engine ignition system may be retained to provide running ignition for steam generator.We usually prefer an independent ignition system.Protect surface of cylinder head with a single layer of masking tape. With piston at top deadcenter, saw protruding lift pin flush with the cylinder head surface. Clean up saw cut with finefile. Install impulse (bash) valve and adjust for a ball lift of from .035 to .060 using shimwashers.Preoil engine and start in the usual way. The engine will run well on as little as 60psi and will

produce over 1BHP on steam at 450psi at 5000rpm. Warning! Engine must be provided with acontinuous supply of lubrication. This is effected by means of a reliable mechanical lubricator(see Cole's catalog). For ordinary steam sources, or by the recommended oil/water mix asdescribed in the Super S.A.S.S. Plans. For once-through steam generators. Maximumrecommended steam temperature is 750F.

Alternate Energy Page 1

8/6/2019 Bash Valve

2/2

Obtain Champion UY-6 spark plug body. Remove insulator and core. Open up bore with 3/8" diaball end mill to depth where bottom corner cleans up. Turn major i.d. to .505" dia to receivemodified pipe bushing. Chamfer top edge for brazing.Obtain 1/4" dia by 1" long brass rod stock. Tap 1/4-40MPT one end. Turn remainder to 3/16" dia(1/8" dia optional).Obtain 3/8 pipe to 1/8 pipe steel bushing reducer. Turn o.d. to .500" diameter and carefully brazein place in body. Install 5/16" (.3125") dia 440C stainless steel ball and seat same with brassdrift. Add inlet fitting (not shown).

Pasted from

Alternate Energy Page 2