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53a1
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Joined: Jun 25, 2008
Posts: 583
Location: Kern Co.
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 Posted: Mon Jan 25, 2010 5:07 pm Post subject: Packing for rebuilding fuel shut off valve |
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Do you guys know what to use for the seal in the fuel and fording shut off valves? I read you can put various packings in there but I'm sceptical.
Thanks.
Last edited by 53a1 on Mon Jan 25, 2010 8:55 pm; edited 1 time in total |
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oilleaker1
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Joined: May 14, 2009
Posts: 972
Location: South Dakota
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| Posted: Mon Jan 25, 2010 8:12 pm Post subject: |
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| It's a brass to brass contact, cone shape receptical. I unstuck and cleaned mine. Keep the surfaces unscored. Don't sand it. If anything polish it. Then apply actual valve grease for gas valves. It's grey colored and very thick. It makes a nice seal and helps lubricate it. I doubt you will ever turn it unless you work on the fuel pump or pull the engine. Mine works fine now and isn't stuck. Hope this helps you! John |
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53a1
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Joined: Jun 25, 2008
Posts: 583
Location: Kern Co.
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| Posted: Mon Jan 25, 2010 9:00 pm Post subject: |
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| Sounds like the seal doesn't do much. I'll use the grease and pu the old seal back in. |
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MODIFIED
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Joined: Mar 28, 2008
Posts: 353
Location: BrOoKlYn
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MODIFIED
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Joined: Mar 28, 2008
Posts: 353
Location: BrOoKlYn
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| Posted: Mon Jan 25, 2010 9:03 pm Post subject: |
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| oh woops, sorry mis-read the post |
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53a1
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Joined: Jun 25, 2008
Posts: 583
Location: Kern Co.
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| Posted: Tue Jan 26, 2010 11:04 am Post subject: |
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Mr. MOD, providing the link was in order as that was my original question so thank you!
I noticed in your link on the 'G' or 'M38A1's are second rate site' that the question is left unanswered.
I'm staring to think the packing just keeps the tapered plug pushed down and clean and the real sealing is done by the precision fit of the tapered valve.
Am I correct Wes? |
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wesk
Site Administrator
Joined: Apr 04, 2005
Posts: 16287
Location: Wisconsin
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| Posted: Tue Jan 26, 2010 11:36 am Post subject: |
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It's a standard 100 year old style plug valve that stops the gas movement at the mating of the tapered plug and tapered body. The felt is a dust and dirt seal.
These plug valves can be polished several times (the tapered surfaces) before they wear to the point that the plug bottoms in the housing then there's nothing more to do except buy a new valve. If the valve leaks at the felt then the tapers have worn too far and it is time for a new valve. A battery drill and a tube of smoker's toprol teeth whitener paste is all that's needed to polish the tapers. You coat the plug taper with it and insert it in the drill and slide the plug into the body and with light pressure spin the drill for a few moments until the surfaces are smooth and shiney and appear to have a completely even lap contact showing.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php |
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hmmm, according this thread:
