OS MAX-H80 RRV RC MODEL AIRPLANE ENGINE W/EXHAUST BAFFLE
- Source: eBay
UP FOR AUCTION IS ANEW OS Max H80 (twin plug, rear drum induction)
This engine has been oiled very well.
Has good compression (90+PSI)
Bearings fell smooth and well oiled for storage.
Engine is complete.
1. Exhaust Baffle and Linkage
2. Acorn Nut
3. Prop Washer and Nut
Has 2 ring piston and needle bearings in the lower end of the connecting rod.
This engine went out of production in the 1970's.
You only need to light up one plug to start it, the second plug will light up by itself when the engine is running. Its double ringed, loop scavenged engine and is a real stump puller with large props. If your engine is new then run it in very rich for about an hour and use castor. The carb assy can be rotated 180 degrees so the carb points up if you invert the engine which can save some hassles lowering the tank. The drum valve (in the photo) has two slots, the one marked with an R lets you set the engine for reverse running. Should run perfectly on zero nitro 20% oil and hand start instantly.
10-15% nitro, propellers 12x6 "Break-in" 12x7, 13x5 to 6, or 14x5 to 6
This engine came with two different types of pistons, a two ring and a single ring. Apparently the connecting rods came in two different configurations as well. Mine all have a needle bearing on the ... read more