THE BAR WILL BE DRIVEN BY A 3/8" ELECTRIC DRILL. IT APPEARS TO BE A COPYOF THE PORTA-TOOL COMPANY MACHINE WHICH WAS ALSO, SOLD, OR A COPY WAS SOLD BY KENT MOORE, I CAN PROVIDE A SKETCH OF A SIMPLE DEVICE WITH CONTROLABLE POSITIVE FEED TO THE WINNING BIDDER, THE CRITICAL DIMENSIONS YOU CAN DETERMINE BY MEASURING A USABLE CASE, THE OTHERS WILL BE UP TO THE DISCRESSION OF THE BUILDER. ACTUALLY, YOU CAN BUY A NEW SET OF 4 OF THESE CUTTERS AT THESAMBA DOT COM FOR THREE HUNDRED SIXTY DOLLARS, OR THE WHOLE MACHINE WITH CUTTERS AND HYDRAULIC FEED FOR TWENTY-FIVE HUNDRED DOLLARS. The crankshaft bores are individually partially formed by a semi-circular bearing saddle integrally cast and machined within the block with the saddle having a semi-circular machined bearing cap releasably fitted thereto so as to define a cylindrical bore.
HAVING THESE CUTTERS, ANY MACHINIST CAN BUILD A LINE-BORING MACHINE USING A 30-31 INCH LONG PIECE OF TURNED, GROUND AND POLISHED COLD ROLLED STEEL (TGP-CRS) BAR AND TWO SLUGS OF ALUMINUM. Porta Tool Vw Line Bore Tool Portable And Suitable The assembly is readily portable and suitable for in the field utilization. THIS SET WAS USED TO SAVE A MINI-MODIFIED RACING CASE THAT HAD A LOT ALREADY INVESTED IN IT THAT WAS DAMAGED WHEN A DRY-SUMP LUBE SYSTEM HOSE BLEW OUT. THE SECOND SET HAS THE SMALL CUTTER THAT WAS MARKED AS 2ND OVER, CHANGED TO 4TH OVER, 2 OF THE THREE ARE MARKED SECOND OVER, ONE OF WHICH WAS NEVER UNSEALED, THE 3RD ONE WAS ORIGINALLY 2ND OVER, RE-SET AND MARKED 4TH OVER. THESE TWO CUTTER SETS WERE RARELY USED WHEN I WAS REMACHINING BEETLE ENGINES, AS BY THE TIME A CASE NEEDED TO BE BORED 4TH OVERSIZE, IT WAS USUALLY TOO FAR GONE TO RISK MY REPUTATION FOR BUILDING QUALITY ENGINES THE FIRST SET PICTURED IS STANDARD 4TH OVER, THE SILICONE ADJUSTER SEALING PLUGS HAVE NOT BEEN REMOVED TO CHANGE THE SETTING. Line-up is accomplished by means of a line up bar, which projects a true 90 degrees to the journal of the crankshaft. The patented E-Z Bore System is a true line boring set-up in reference to the journals of the crank shaft. Cutters are preset to your bore diameter specifications. Item: 192578559174 TWO PORTA-TOOL VW LINE BORING BAR FOUR CUTTER SETS FOR SHOP BUILT LINE-BORE BAR. Patented E-Z Bore machine uses a standard 1/2' portable drill.