Factory #70 Core Room

Assembly of a straight eight core.

These photos show both V8 & straight 8 cores being assembled.

For a time both eight cylinder blocks (straight & V) overlapped and were assembled during the 1953 changeover when work shifted from factory #11 to the new factory #36…………jim yuill said…
The cores were assembled on a slab with core paste. With the wheel housing in the back and the “J” core that form the area for the timing chain is shown closer to the viewer. The body core that formed the cylinder wall “skirt” is visible. The cores forming the cylinders and water jackets were assembled in a different area for placement on a “core conveyor” for their 1.5 hour ride through a drying oven and on to the molding line. The jacket and cylinders were placed separately in a fixture with the slab assembly, then turned upside down and set in the mold by the core setters. Again the copes and drags were clamped together to prevent run outs, during or shortly after pouring.
March 23, 2008 1:19 PM
jim yuill said…
The 3rd picture was of “green” cores on the sody core oven, There were 4 different body core that were made by blowing the core sand mixture into a closed but vented core-box. This allowed the sand to take the internal shape of the core-box and was then place on the oven conveyor for trip, that consisted of baking the core sand mixture. The mixture was composed of sharp and bank sand, corn flour, clay (in a powder) form, water and core oil. The core oil fused the particles together during baking. The clay and some oil properties gave the core “green” strength for placement on the core dryer. This way it maintained its strength during baking.
March 23, 2008 1:29 PM
jim yuill said…
The last photo was on 4 or 6 line in the foundry molding area. It is a straight block drag mold with the core assembly in place. Next the Cope or top will be added to the mold, clamped and poured
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3 thoughts on “Factory #70 Core Room

  1. The top picture is one fo a V-8 block core assembly. The cores were asmble on a slab with core paste. The wheelhousing if in the back and the “J” core that form the area for the timing chain is closer to the viewer. The body core that formed the cylinder wall “skirt” are visible. The cores forning the cylinders and water jackets were assembled in a different area for placement on a “core conveyor” for their 1.5 hour ride thru a drying oven and on to the molding line. The jacket and cylinders were placed separately in a fixture with the slab assembly, turned upside down and set in the mold by the core setters. Again the copes and drags were clamped together to prevent runouts, during or shortly after pouring.

  2. The 3rd picture was of “green” cores on the sody core oven, There were 4 different body core that were made by blowing the core sand mixture into a closed but vented corebox. This allowed the sand to take the internal shape of the corebox andwas then place on the oven conveyor for trip that consisted of of baking the coresand mixture. The mixture was composed of sharp and bank sand, corn flour, clay (in a powder) form, water and core oil. The core oil fused the particles together during baking. The clay and some oil properties gave the core “green” strength for placement on the core dryer. This way it maintained its strength during baking.

  3. The last photo was on 4 or 6 line in the foundry molding area. It is a straight block drag mold with the core assembly in place. Next the Cope or top will be added to the mold, clamped and poured

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