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  #1   IP: 24.152.131.153
Old 02-04-2014, 01:15 AM
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Oberdorfer 202M

The fruit of another thread discussing Oberdorfer 202M shaft diameter, posted here for future ease of retrieval.
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File Type: jpg Oberdorfer 202M dimensions.jpg (44.4 KB, 202 views)
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  #2   IP: 174.67.229.161
Old 02-05-2014, 02:11 AM
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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
simon
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Last edited by HalcyonS; 02-05-2014 at 02:14 AM.
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  #3   IP: 24.152.131.153
Old 02-05-2014, 08:49 AM
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Here is where I captured the drawing, maybe it will work better for you.
Quote:
BTW - in the red ring it says 6250, 6235 - that would be 15 thou tolerance?
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.

If it helps I just measured the shaft from the pump on my project engine, 0.6250".
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1977 Catalina 30
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prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others

Last edited by ndutton; 02-05-2014 at 11:22 AM. Reason: Oh the difference one word makes
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Old 02-05-2014, 07:25 PM
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OK, assuming a housing in good condition, what is the minimum shaft diameter that would be acceptable?
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Old 02-05-2014, 07:35 PM
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Quote:
Originally Posted by marthur View Post
OK, assuming a housing in good condition, what is the minimum shaft diameter that would be acceptable?
If minimum shaft size is .6235" that means the wear tolerance must be .0015" http://www.oberdorferpumps.com/pumps...r-pumps/n202m/
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Old 02-06-2014, 12:09 AM
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Quote:
Originally Posted by hanleyclifford View Post
If minimum shaft size is .6235" that means the wear tolerance must be .0015" http://www.oberdorferpumps.com/pumps...r-pumps/n202m/
that was my thought too
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Old 02-06-2014, 08:00 AM
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OK I see it now!
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