Clean up the cast iron and JBweld that sucker in place. I believe it's in there to reduce slippage behind the vanes of the water pump. Excess clearance behind the vanes would definitely reduce the efficiency of the water pump.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.