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In Reply to: Is there a spin on oil filter retrofit for big6? posted by MJ on February 05, 2000 at 12:10:33:
: I have a '78 633 which uses the cartride style oil filter. Does anyone make a spin on retro fit?
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The M30 engine typically is capable of oil pressures of around 100 psi on cold start-up. Evidently the oil passages or the oil pressure relief valves cannot bleed off enough volume to keep the pressure down to "reasonable" values. Hot pressure runs about 4 atm or 60 psi.
Therefore, even if you could use a spin-on, I would be loathe to trust a tin can filter to those kinds of pressures.
Bob