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ACRO E-mail Archive Thread: [IAC-L:682] Re: O-Ring for Wobble Pump

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ACRO E-mail Archive Thread: [IAC-L:682] Re: O-Ring for Wobble Pump


Thread: [IAC-L:682] Re: O-Ring for Wobble Pump

Message: [IAC-L:682] Re: O-Ring for Wobble Pump

Follow-Up To: ACRO Email list (for List Members only)

From: "Tom R. Myers" <Tom_Myers at ENG.Trimble.COM>

Date: Wed, 13 Aug 1997 03:37:49 UTC


 > O-Ring for the Christen Wobble pump filter cup

the standard ms series part number is MS9021-026. the ms9021
series is fuel resistant o-rings. the 026 is the o-ring size.

i bought a bag of them from:
Nor-Cal Seal, 840 Doolittle Dr., San Leandro, CA, 94577, 510-569-7371.

i put a little dow/corning type 111 silicone grease on the o-ring
to make sure it slides without being damaged during reassembly.

> fuel filter

the filter is a CG-12, which is a Fram fuel filter available at most
auto parts stores.

there are a few other filters that look similar. make sure you use a
CG-12 or a direct equivalent. the reason is that some of the similar
looking ones have a reverse flow valve in the center of the filter that
will prevent ANY fuel flow in the wobble pump.


Tom R. Myers
408-481-8796 (W)
415-328-2141 (H)
tomm at


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