Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks

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31 fuel pump diaphragm #256221 09/27/12 04:59 PM
Joined: Dec 2010 Posts: 48 PA jgeorge OP Shade Tree Mechanic
OP jgeorge Shade Tree Mechanic Joined: Dec 2010 Posts: 48 PA	there are two "cup" type washers (one larger) that go on either side of the diaphragm called "washer, fuel pump diaphragm protector upper" and lower. 836229 and 835928. which side of the washers go against the diaphragm? both mine have the cup side down and it puts a "pucker" in the diaphragm. thanks for any help. Joe

Filling Station - Chevrolet & GMC Reproduction Parts

Re: 31 fuel pump diaphragm jgeorge #256254 09/27/12 07:46 PM
Joined: Nov 2001 Posts: 19,758 Likes: 64 The Great State of TEXAS Chipper ChatMaster - 15,000
Chipper ChatMaster - 15,000 Joined: Nov 2001 Posts: 19,758 Likes: 64 The Great State of TEXAS	The small tapered edge washer goes on the bottom of the diaphragm with the taper down (away from the diaphragm). The larger one does on top with taper up (away from the diaphragm) then six sided washer, split lock washer and nut in that order. How Sweet the roar of a Chevy four!

Re: 31 fuel pump diaphragm Chipper #256258 09/27/12 08:08 PM
Joined: Dec 2010 Posts: 48 PA jgeorge OP Shade Tree Mechanic
OP jgeorge Shade Tree Mechanic Joined: Dec 2010 Posts: 48 PA	Thank you very much.

Re: 31 fuel pump diaphragm Chipper #256720 10/02/12 11:13 AM
Joined: Mar 2009 Posts: 885 Norwalk, Ia. jdv123 ChatMaster - 750
jdv123 ChatMaster - 750 Joined: Mar 2009 Posts: 885 Norwalk, Ia.	Thanks Chipper!! Jim.

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