Fuel Pump Base O Ring

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Rick Wall
356 Fan
Posts: 122
Joined: Sat Oct 08, 2011 12:29 pm
Location: Western Washington

Fuel Pump Base O Ring

#1 Post by Rick Wall »

I have rebuilt the early style fuel pump on my 356 B. I also ordered a replacement O ring, 999-701-043-50, for the fuel pump base, but it looks different than the original one, still on the base. The old one is probably original, and looks more like a square/flat seal than the replacement ring, and seems to be more of a hard plastic material. I realize that the old one could have become hard and flat over time, I just would like any thoughts or reassurance that the replacement will seal the unit before I reinstall.

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Vic Skirmants
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Re: Fuel Pump Base O Ring

#2 Post by Vic Skirmants »

Your old one started round and pliable. It has since hardened and taken a new shape. No longer capable of doing any sealing.

Rick Wall
356 Fan
Posts: 122
Joined: Sat Oct 08, 2011 12:29 pm
Location: Western Washington

Re: Fuel Pump Base O Ring

#3 Post by Rick Wall »

Thanks Vic, I appreciate your reply. I will install the new one.
Rick

Dick Weiss
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Re: Fuel Pump Base O Ring

#4 Post by Dick Weiss »

The same thing happens w/the distributor body's O-ring.

Rick Wall
356 Fan
Posts: 122
Joined: Sat Oct 08, 2011 12:29 pm
Location: Western Washington

Re: Fuel Pump Base O Ring

#5 Post by Rick Wall »

Thanks Dick, I will replace the distributor seal before I reinstall.

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