Topica Loopframe_Guzzi Archive
 

Subject: Re: Petcock rebuild?

Author: Ted Ward

Date: Jan 21, 2005, 7:03 AM

Post ID: 1718248446


I had the same problem after I POR-15'd my tank. Picked up a tap at Ace
hardware. A cheap steel tap, but the correct size.

----- Original Message -----
From: "Greg Bender" <gr-@thisoldtractor.com>

Hi Joe,

When I put the POR-15 in my tank to seal it, I let the excess run out
the petcock holes. Needless to say, all of my threads were clogged. I
thought about trying to get ahold of the right sized tap, but they are
hard to find. Instead, I used a 6mm x 1mm tap and just turned it around
the circumfrance of the hole until the threads were cleaned out. Took a
bit of time, but I didn't have to wait a week for an expensive tap to
arrive. I grabbed ahold of the tap with the vice grip to give me
something to hold onto.

As for the size, they are 12mm x 1mm.

I do have a couple of hard to find taps that I would be willing to lend
to anyone in need (just remember to send them back!):

1. swing arm thread tap...for the theads in the frame.
2. exhaust thread chaser...for the the threads in the exhaust port of
the head. This one will clean up the threads, but is not intended for
cutting new ones.

If you need something, just let me know.

joe jump wrote:
 
Would anyone know what the thread diameter & pitch is for the spigot
that the petcock threads into? I think I read here a while back that it
is 10mm x 1mm - sound right? I have to do a repair to the paint on my
tank - it bubbled up around ther filler neck. While I was at it, I
wanted to purchase a tap & chase out the threads in my tank - one side
was buggered up & damaged a petcock, and dollars to a donut, it's going
to bite me in the ass when I start to mess with it. Any help
appreciated!

Joe in St Louis
850T Powered Ambo
"Junkyard"

Bruce Giller wrote:
 
The ones I made for my Eldo have been leak/weep-free for over 3 years.
They
are made from a sheet Viton. I use hole punches (got metric ones now)
and an
old gasket as a template. They go for $.50 each since the Viton is
pretty
expensive stuff. I've found two versions of Ambo/Eldo petcocks, Orlandi
('sugar cube' style) and 'other'. Tell me which one you have, and I can
make them up.

And yes, I'm making millions!!!

Bruce

'72 Eldo

-----Original Message-----
From: tom short [mailto:TSh-@phx.devry.edu]
Sent: Friday, January 21, 2005 8:50 AM
To: Loopfram-@topica.com
Subject: RE: Petcock rebuild?


Be advised....

There are two versoins of the Guzzi petcock.. The V700 are different
than Ambo/Eldo ones.. as I understand.

I got some rubber ones from a lister. Haven't put them in yet....


John Chicoine wrote:
 
Hi Alan:

I've got a shop making me a bunch of teflon ones. They won't break
down
like the rubber ones and are self lubricating. You won't have to
strong


arm
the petcock open.

I should have them in a week. The price will be $4.00 including
postage.

John

67 V7 & offspring

The Arizona Kid
LFL 009



Joe in St Louis
850T-Powered Ambo



Regards,

Greg Bender
1971 Ambassador
2000 Quota
http://www.thisoldtractor.com/gtbender

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