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Old 08-10-20, 03:06
Colin Alford Colin Alford is offline
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Join Date: Dec 2009
Location: Barrie, ON
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Bruce,

I don’t have access to any Fox or Otter manuals but I do have access to C60X manuals.

When Rob posed the question of different pressures/gauges between the 216 and 270 engines, I had a look to see what I could find.

According to MB-C2 the early instrument cluster was graduated 0-15-30 for the 216 engine, and the oil pump was capable of producing 14 psi at 2000 rpm. Various Chev parts lists (Other than C60X) list the correct oil pressure gauge as 1506092.

According to M660-C1 the early instrument cluster was graduated 0-40-80 for the 270 engine, and the oil pump was capable of producing 35-40 psi at 1000 rpm. C60X-04 parts list shows oil pressure gauges 1506379 ( early with red pointer) and 1506377 (later with white pointer) which is also the same number you quoted from the Fox parts list.

If we disregard the 0 and 30 in the upper corners of your gauge, the part number seems to be much closer to the 0-80 gauges for the 270 engines than it is to the part number for the 216 engines.

Perhaps a test is in order to determine the actual range.

When the switch was made to individual gauges, both 216 and 279 engined vehicles used the same round gauge with part number 1506359. I presume the gauge had sufficient range to accommodate both types of engine.
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