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willysmjeeps.com :: View topic - M38 Fuel shut-off valve brass connector at McMaster-Carr
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M38 Fuel shut-off valve brass connector at McMaster-Carr

 
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timber21
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Joined: Dec 11, 2015
Posts: 14

PostPosted: Sat Feb 09, 2019 11:29 am    Post subject: M38 Fuel shut-off valve brass connector at McMaster-Carr Reply with quote

Had a small leak at the fuel shut off valve caused by a hairline crack on the brass connector. Could not find it locally but located an almost identical part from McMaster-Carr, it is a typical automotive 45 degree flared fitting 1/4" tube X 1/8 NPTF, Part Number 6432T117, $4.95 plus SHI. The only difference I found, the new connector is slightly flared where the face of the threaded portion of the valve touches as opposed to the original that is flush.

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wesk
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Posts: 14227
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PostPosted: Sat Feb 09, 2019 1:25 pm    Post subject: Reply with quote

6432T117 is for a regular external flare tube. You want a fitting Ordnance PN 191573 (Ord Stk # H106-0191573) for a 1/8" female P to 1/4" inverted flare tube.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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timber21
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Joined: Dec 11, 2015
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PostPosted: Sat Feb 09, 2019 3:06 pm    Post subject: Reply with quote

Indeed, but could not find one, and the connector from McMaster does the job.
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4x4M38
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Joined: May 30, 2014
Posts: 2866
Location: Texas Hill Country

PostPosted: Sat Feb 09, 2019 4:24 pm    Post subject: Reply with quote

Understand that a regular flare fitting may do the job, but that an inverted flare end on the tube may resemble a regular flared end, but is done with a different tool.

The end of the tube is not flared outwards, but is flared inwards.
There is a specific set of dies used for the inverted flare.
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Brian
1950 M38
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4x4M38
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Location: Texas Hill Country

PostPosted: Sat Feb 09, 2019 4:52 pm    Post subject: Reply with quote

Inverted flare fittings have been used for decades on brake lines.
They can be found at auto parts stores but usually one has to go in back
and dig through the fitting boxes because the millenial up front canít find it on the computer.

Fastenal also carries inverted flare fittings.
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Brian
1950 M38
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wesk
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PostPosted: Sat Feb 09, 2019 5:00 pm    Post subject: Reply with quote

Once you tighten that new External 45 Deg. flare fitting you will have permanently deformed the inverted flare. You have been lucky and your mix and match has not leaked.

My advice to the rest of our members is to Not Mix & Match fitting and tubing types. If one looks hard enough one can find the correct part making his repair less risky.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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