Oliver 70 Foundry mark

Dalex

Well-known Member
Right below the block's part number is a "W" with an arrow through it . The engine was built by Continental , so who's mark is that ??
 
All model 70 Oliver's used continental engines. The only other ones that used continentals were the super 44 and 440, I believe.
 
So the "W" with the arrow thru it is Waukesha's foundry mark ?? On a Continental engine ??
 
Nothing particularly surprising.

Might be more likely soon after the war? Many(?) companies would source castings from other foundries if their capacity was insufficient for demand.
 
that could be possible because after the war Oliver went to continental for engines for their tractors and they were already producing at the max so Oliver went to waukesha
 
Is there any evidence that they ground down an area around it? On a lot of modern blocks, you'll find "NW" which stands for non welded. If they had to make a non structural repair (weld) in the casting process, they will grind away the "N" and all you will see is a "W".

My intuition would say that a W with a slash through it means non welded and if they ground that symbol away, it would mean welded. But, that's a guess.
 
And that's what it would be. The "NW" I referred to is actually cast in the block and they grind off the "N" if they do a repair at the foundry leaving just the cast "W".

The only other thing I could think of is if it's the foundry's symbol. Often on newer stuff you'll see "FW" for Fritz Winter, "TUPY", etc which represents who cast the block or head.
 

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