Petcock Rebuild

[David Nicholls]

Dear friends

Does anyone know how to remove the Circlip (9) to disassemble the Fuel Petcock.
I'd like to replace the Petcock Cork Gasket.

Many Thanks
David

[Ron LaDow]

You need a socket with an ID to go around the 'ball', deep enough to clear the "ball", an OD small enough to clear the circlip.
Another socket for the other side to keep from damaging the outlet.
Or pieces of tubing you might have laying around.
Put the lot in a vice, tighten to where you can use a pick or scribe to remove the circlip.
Reassemble in opposite order.
(added by edit) Like this:

file.jpg (43.79 KiB) Viewed 1675 times

[Doug McDonnell]

See Roy Mawbey's discussion here: viewtopic.php?f=1&t=4874&hilit=petcock+rebuild

[Jim Alton]

Back in November 2008, Roy Mawbey posted more detailed instructions, with photos, in the thread petcock gasket replacement.

You can see it at viewtopic.php?f=1&t=4984&view=next#p20879.

It's been quite a while since I used those instructions but my recollection is it's pretty easy. Take some care that the spring clip doesn't leap away.

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When you're done, be very careful reattaching the petcock to the tank with that right- & left-hand threaded "nut" lest your car fill up with gasoline.

[David Green]

Here's a photo of my early petcock in the vise but as noted, use sockets on both ends, not just one as in the photo.
David

[David Nicholls]

Many Thanks gentlemen for your informative replies, and solutions.
Answers from Ron, Doug and Jim in a matter of a few hours, after my post.
David, thank you, too.
Problem solved and parts are ordered.

By the way, the Petcock Rebuild all started with the Windscreen Wipers not working. That was caused by a corroded fuse end, refusing to pass electricity.
One thing led to another, and another, ......... as owners of Porsche 356s well know.

Best Regards to you all.
David

[Dennis Vogel]

By the way, the Petcock Rebuild all started with the Windscreen Wipers not working.

I realize this is an old thread, but I just can't help but point out this quote is priceless. I almost want to make a t-shirt with that printed on it.

The pointers to the rebuild instructions are quite good too.

Thank you 356 Registry!

[Wes Bender]

Dennis, if you make those tee-shirts, be sure to incorporate a rabbit hole 🕳 in the design.

This forum doesn't take the place of the FSM, but it's darned close.

[James Overstreet]

Great to see this, as I hope to be diving into a petcock rebuild early next week.

[Martin Benade]

Wes, I’m not familiar with FSM so I Googled it. First hit is Flying Spaghetti Monster. It’s actually better than our forum?

[Wes Bender]

Sorry Martin, I should have written Factory Service Manual but my laziness had me in acronym mode.