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The fruit of another thread discussing Oberdorfer 202M shaft diameter, posted here for future ease of retrieval.
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Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others -
Neil : posted here for future ease of retrieval
so how do I 'retrieve' it as in download it? Drag and drop give me a low res version.
BTW - in the red ring it says 6250, 6235 - tahr would be 15 thou tolerance?
thx
simonLast edited by HalcyonS; 02-05-2014, 03:14 AM."Halcyon" 36' custom sloop. 8 tons. Glass over strip plank mahoghany. Spruce mast and booms, launched 1969. Original A4. -
Here is where I captured the drawing, maybe it will work better for you.
Tolerances usually aren't expressed that way. Typically they are preceded by +/-. My guess is they might have a different shaft size for the two variations of the 202M pump (the Std. 1/2" NPT port and -03/-07 3/8" NPT port variants). That is pure speculation though. You should contact Oberdorfer to find out for sure.BTW - in the red ring it says 6250, 6235 - that would be 15 thou tolerance?
If it helps I just measured the shaft from the pump on my project engine, 0.6250".Neil
1977 Catalina 30
San Pedro, California
prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few othersComment
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OK, assuming a housing in good condition, what is the minimum shaft diameter that would be acceptable?MikeComment
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If minimum shaft size is .6235" that means the wear tolerance must be .0015" http://www.oberdorferpumps.com/pumps...r-pumps/n202m/Originally posted by marthur View PostComment
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that was my thought tooOriginally posted by hanleyclifford View Post"Halcyon" 36' custom sloop. 8 tons. Glass over strip plank mahoghany. Spruce mast and booms, launched 1969. Original A4.Comment
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OK I see it now!MikeComment
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