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B30 water pump woes. 140-160

posted by  bmontz on  Mon Mar 4 12:47 CST 2019
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Eric,

I am working on seeing if I can get an actual thickness on the stock head gasket but if I am not mistaken the B30a in the C303 should be the same thickness as those used on the carb version of the 164. My particular variant runs the Stromberg 175 CD2-SE carbs.

It could very well an issue with quality of pump used I won't deny that. The mating surface seems to be rougher than I would expect on a pump machine surface. Let me ask this. The GMB pumps have a flat/smooth mating surface? Also are they aluminum?

The question in regards to the top seals..it's a confusing one. Larger vs smaller isn't really working if there are more than two sizes. It would be nice to know what the actual size in height each seal should be based on B30a/e/f variants. This should only pertain to stock units and not altered B30's






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