April 16, 2008

Progress on cylinders

These photos show completion of the drilled & tapped holes for the rear of the cylinder saddle. 

They also show the beginning of work to create the "slots" through the casting webs for the upper frame rail to seat into.

Work begins on fitting the eccentric cranks & side rods to the newly machined/quartered drivers & crank pins.

Drilling stud holes for rear valve crosshead looking through valve cage bore.	Photo: Steam Operations Corporation
Ronnie and Craig tapping stud holes for left rear cylinder head.	Photo: Steam Operations Corporation
Tapped holes on left rear cylinder casting. On the lower right of the photo, you can see the beginning of the "slot" that will be machined for the upper frame rail seat.	Photo: Steam Operations Corporation
The next series of photos show initial machining of cylinder casting for  upper frame rail seats.	Photo: Steam Operations Corporation
	Photo: Steam Operations Corporation
	Photo: Steam Operations Corporation
machining upper frame rail seats. Note the chips the cutter is removing from casting.	Photo: Steam Operations Corporation
Main driver, #3 set up to measure eccentric crank throw and to inspect fit of crank on crank pin.	Photo: Steam Operations Corporation