Oldhammerhead asked a question that gave me reason to ask

r.w.b.

Well-known Member
Early va series engines were built by continetal,they had big expansion plugs in side of block,1 piece manifold.
Now my question was the early blocks weak by design? I got a very early vac scrap tractor missing manifold but has newer block.
I kinda can see weaker block with the 2 huge expansion plugs.
Ive never seen an early block just pictures.anybody got pictures of early blocks in running tractors? Id like to see them
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Not really expansion plugs. Core holes in the block for the casting process, cast iron entering the mold. Later machined clean to be sealed with a tin plug.
 
I just refer to them as such.i got book somewhere that said was easier to get casting sand out.but many storys from the 40s to today.
As for strenght they were pretty big from what books show.that coulda been weak spot in a block for frame design couldnt it?
 
Here are some pictures of a war model VAC that had some different parts than your conventional VAC. 6 bladed cooling fan, iron radiator, roller drawbar (like a DC) and angled oil filter.
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Was told wartime tractors used steel radiators and thus decreased cooling so 6 blade fan,same reasin wartime john deeres got water pumps.. I need to check serial number on my old vac but its had block changed. Belt pully hydraulic system .
Did your vac originally have a leather gear shift cover? Seen a wartime picture in magazine showing leather instead of rubber boot
 
I cant remember in old abe news or the herritage
It was mid wartime model suspect rubber shortage
 

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