[Public-List] Manifold petcock Atomic 4

[Ronald Walker]

Yeah,thought about that. Probably have to pull the manifold. That'll be plan "C"

--- On Sun, 5/20/12, crufone at comcast.net <crufone at comcast.net> wrote:

> From: crufone at comcast.net <crufone at comcast.net>
> Subject: Re: [Public-List] Manifold petcock Atomic 4
> To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
> Date: Sunday, May 20, 2012, 7:44 PM
> 
> 
> Ron, 
> 
> Something else came to mind. If all else fails you probably
> have a 1/8" NPT fitting. If you could find a 1/4" NPT brass
> petcock you could go up one size if the boss on the manifold
> is large enough to tap the 1/4" NPT hole. 
> Whoops................ three cents worth. 
> 
> Michael #133 
> 
> 
> ----- Original Message -----
> 
> 
> From: crufone at comcast.net
> 
> To: "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
> 
> Sent: Sunday, May 20, 2012 6:58:52 PM 
> Subject: Re: [Public-List] Manifold petcock Atomic 4 
> 
> 
> 
> Ron, 
> 
> If you have access to a bench grinder you can easily shorten
> a regular tap to make your own bottoming tap.  Begin with
> the regular tap to begin the work. Then grind off a bit and
> file the end to remove burrs and place in threaded hole and
> run in. Keep repeating until you have a true bottoming tap
> to run in at last. Use thread cutting oil and turn in only a
> quarter turn before backing out and then in slowly again. I
> wouldn't use j-b Weld. What if you want to replace the
> petcock in the future? How about Boat-Life caulk? I have
> used this in low pressure situations and it worked well to
> seal the leak ............... and can be more easily removed
> for future service. 
> 
> My two cents worth. 
> 
> Michael #133 
> 
> 
> 
> ----- Original Message ----- 
> 
> 
> From: "Ronald Walker" <rwpsw at sbcglobal.net>
> 
> To: a30240 at earthlink.net,
> "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
> 
> Sent: Sunday, May 20, 2012 8:08:55 AM 
> Subject: Re: [Public-List] Manifold petcock Atomic 4 
> 
> Thanks Jim 
> I did just as you suggested and poked around in the hole and
> a good bit of crud came out. If I can't find the proper
> non-tapered tap I will have to revert to Plan "A".J.B.Weld 
> Ron #292 
> 
> --- On Sat, 5/19/12, Jim Davis <a30240 at earthlink.net>
> wrote: 
> 
> > From: Jim Davis <a30240 at earthlink.net>
> 
> > Subject: [Public-List] Manifold petcock Atomic 4 
> > To: public-list at lists.alberg30.org
> 
> > Date: Saturday, May 19, 2012, 9:15 AM 
> > You are right about the petcock, it 
> > was for draining the manifold.  The 
> > manifold is cast iron and the petcock probably brass. 
> 
> > While you have the 
> > hole open you might want to poke around up inside the
> hole 
> > with a small 
> > screwdriver (jewelers) and see how much crud comes 
> > out.  As to replugging 
> > the hole I would try cleaning the threads as best as 
> > possible with the 
> > correct size tap the replace the petcock with a new one
> and 
> > use JB Weld on 
> > the threads.  Clean both surfaces well with acetone to
> 
> > be sure there is no 
> > oil present. Do not over tighten as the cast iron isn't
> as 
> > strong as it was 
> > 30 years ago.  Considering how few people open the 
> > petcock you could get 
> > away with a plug with the same thread. 
> > 
> > Jim Davis 
> > Privateer Isa Lei 
> >   
> > "This country has come to feel the same when Congress
> is in 
> > session as when 
> > the baby gets hold of a hammer." 
> > Will Rogers 
> > 
> > 
> > 
> > 
> > 
> > 
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> > 
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