Reply to Willie:
If you cant find engine spot you may want to look at the big wheels for geardrive ring or drive spocket.
The first engine powered Tin Holt had the engine up on the side it was a Wisconson overhead valve with alum. cast sideplates and valvecover that said Holt the later tin models move the engine down on front over the front wheel and first usde the wisconson engine the started useing the 2 ton engine that could be taken off and used for sattioary power elswhere the later came the 10,15 &22 engines
On the tin models the used the scewjack type leveler and on the big wooden machines the used rack$pinon
Hey Willie, thanks for responding, When you say,''the engine was mounted up on the side'' do you mean, even with the cylinder shaft like a ''32'' or higher up? The machine I am trying to identify is not ground driven, but does have a flat belt pulley on the cylinder, it does line up as though the engine was mounted in front, but there is absolutely no indication of an engine ever being mounted there, may be time has erased any clamp marks. The wood sprocketing is a bigger mystery yet.Here is the Wisconsin that you spoke of, direct coupled through a clutch to the cylinder with the screw jack leveler in the left foreground and the side view of the unknown machine. Thanks; Tad
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