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#11
31-05-14, 02:36
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Quote:
Looks like you're right Tony, the only difference being the return pipe from the filter. Presumably it's designed to lubricate the governor drive gears before draining into the sump. Also they swapped holes for the oil pressure sender, presumably because it no longer fits in the standard position. Certainly the standard sender unit would not fit in that confined space. It's interesting they stuck with the partial flow filter, despite this being the militarized block. If you have a look in the Ford manual you'll see they designed a full flow system for the CMP, with a bypass valve in case the filter became blocked. A bushing was inserted in the vertical passage to separate it from the horizontal passage, and a third passage was drilled for the oil filter return pipe, exactly where today's hot rodders drill the passage for conversion to full flow filtration. They seem to think they invented this mod, evidently they haven't heard of CMPs! Interestingly though I've never seen the full flow system on a CMP motor in Australia. It's always the partial flow system with the filter return pipe to the oil pan, and the third passage is always plugged. I wonder if they used the full flow system elsewhere, or whether it was abandoned for some reason. Certainly it's not necessary, and of course the rear main bearing and No.4 crankpin are fed directly from the oil pump anyway. frenchflat.jpg
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One of the original Australian CMP hunters. 
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