Rebuild Fuel Shutoff Valve

[guzz...@gmail.com]

Is there a way to rebuild the fuel shutoff valves on my 1938 S.

They have a spring and cotter key holding them together.

Thanks!

[Jerome Kimberlin]

There isn't anything there to rebuild.  I assume they leak and you need
to fix that.  Pull the cotter and take the valve apart, clean it well,
and lap the tapered parts together using toothpaste until the leak is
fixed.  Wash the paste out and reassemble.

JerryK

[guzz...@aol.com]

I believe it's just a brass ball in there so you might be able to lap the pieces/parts and clean them up ........ then they'll just leak more 

Tim

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[Guzzi SVT]

They seep very little. Most evaporates before going anywhere. Just want to get it to where I can leave gas in it while it's stored. Thanks for the information, I'll get it done.

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[Rick Yamane]

I think those are cone shaped. 

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Subject: Re: [guzzi-singles] Rebuild Fuel Shutoff Valve

 

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[steven s.]

If the shaft is tapered rather than straight, you can increase the spring tension, resulting in a snugger fit between lapped surfaces. Just adding 1 or 2 washers before the cotter pin may do it.

Steven 

https://groups.google.com/d/msgid/guzzi-singles/CAJs29jhmu3w4Xy60WMmFtbdxJOCwsuzw-gkhCjUq2mydwoZabQ%40mail.gmail.com

.

[pouma1954]

I have the same issuewith the oil tap on my Falcone.

I'll look into next oil drain this winter.

Paul

Envoyé depuis mon appareil Galaxy

-------- Message d'origine --------

De : "'steven s.' via Guzzi Singles" <guzzi-...@googlegroups.com>

Date : 26/08/2022 07:14 (GMT+01:00)

À : guzzi-...@googlegroups.com

Objet : Re: [guzzi-singles] Rebuild Fuel Shutoff Valve

To view this discussion on the web visit https://groups.google.com/d/msgid/guzzi-singles/162970756.99781.1661490835192%40mail.yahoo.com.

[guzz...@gmail.com]

It was a cone shape and had lots of spring pressure. I started with valve lapping compound, then went to red and white rubbing compounds, finishing off with tooth paste as Jerry suggested. I used a drill to do the lapping, All is well now.