[SEL] Rumely OilTurn

[MBellar at aol.com]

Last fall I visited my FATG friend. He suggested that I might be interested 
in looking at a new pile of rusty iron setting on three pallets along side a 
huge cart. The only thing that I instantly recognized was the sheet metal from 
the exhaust vent that looked like it was from an OilPull tractor. He said to 
check out page 436 in the BRB. Sure enough, the the rusty pile assembled in my 
mind to fit Wendell's picture of a 30 HP Rumely OilTurn. Over the winter the 
crankshaft and camshaft was turned down, the cylinder resleeved along with 
refitting the piston, connecting rod and rod bearing. $$$$$. I think he said that 
the connecting rod was recast. The block and cart were cleaned up to look like 
new. About two weeks ago I helped pour thirty pounds of babbitt for the lower 
half of the mains and camshaft. The top half remain to be poured. A Machinist 
friend of his assembled four jigs that allowed him to place shafts in the 
block in place of the crank and camshaft for pouring. The jigs also formed dams so 
that side thrust edges of the bushings would be perfect. The machinist 
mentioned to me that the jig he built allowed him to adjust the crank to within 
0.0001" perpendicular to the cylinder, and allowed him to accurately set the 
backlash for the cam gears. ----- More to follow as work progresses,----
One other quick taught. The FATG has an industrial powder coat oven that is 
big enough to park a tractor inside. Just in case any of you are interested in 
powder coating a large engine. In fact, we used the oven to heat the Rumely 
block prior to pouring the babbitt.

Tom Bellar