 Fresh Air Box Drain Nipple Repair - Simple |
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| jrmdir |
 May 12 2022, 02:27 PM
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#1
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Member  Group: Members Posts: 224 Joined: 13-May 21 From: Central Ohio Member No.: 25,544 Region Association: Upper MidWest 
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Hi:
Something like this may have been posted before but I couldn't find anything. Posting in case it may be of help to someone down the line. Based on my car it seems that the drain nipples are prone to snapping off. Someone mentioned trying ABS cement to try to butt weld them back on, but while I have my air box out I wanted to try something more durable. Turns out a standard 1/2 copper coupling is almost a perfect fit to make a sleeve. The ID of the broken nipple is slightly tapered going toward the box so while the copper fitting slides in perfectly from the drain end, it sticks about 1/8 inch from the other end. But just a few minutes hogging out that end, as well as the opening in the box and it all came together perfectly. Now to add a bit of epoxy and it should be pretty reliable. Ron   |
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| autopro |
May 12 2022, 02:30 PM
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#2
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Member Group: Members Posts: 306 Joined: 14-January 18 From: San Diego / Tijuana Member No.: 21,797 Region Association: Southern California |
Nice solution, wish I would have known before. I recently did this but just used epoxy to glue the broken piece back on. If after installation it breaks again then I will do as you did. Thanks for posting it!
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| dlee6204 |
May 12 2022, 03:11 PM
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#3
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
I completed this exact repair recently. I used black some black epoxy, sanded smooth, and in the end you couldn't really tell it was cracked.
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| Van B |
May 12 2022, 03:18 PM
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#4
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Senior Member Group: Members Posts: 1,612 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None
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Both of mine are broken and this is the repair I had in mind. But I plan to use Hysol and anodized aluminum tube.
Good to know about the taper! |
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| Van B |
May 12 2022, 03:28 PM
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#5
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Senior Member Group: Members Posts: 1,612 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None
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QUOTE(dlee6204 @ May 12 2022, 05:11 PM)  I completed this exact repair recently. I used black some black epoxy, sanded smooth, and in the end you couldn't really tell it was cracked. I like the black epoxy idea. What brand and temp rating did you use? |
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| Root_Werks |
May 12 2022, 04:02 PM
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#6
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Village Idiot Group: Members Posts: 8,337 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Nice! Both mine drains were broken and I sourced another box. Didn't even think about a repair like this.
Well done. |
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| MM1 |
May 13 2022, 12:38 AM
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#7
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914 obsession continues Group: Members Posts: 608 Joined: 9-May 18 From: Thousand Oaks, CA Member No.: 22,105 Region Association: Southern California
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Good idea-thanks for sharing.
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| barefoot |
May 13 2022, 06:35 AM
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#8
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Senior Member Group: Members Posts: 1,281 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States
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I also did this same repair using epoxy as glue, works just fine.
Barefoot |
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| StarBear |
May 13 2022, 06:46 AM
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#9
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Senior Member Group: Members Posts: 1,910 Joined: 2-September 09 From: NJ Member No.: 10,753 Region Association: North East States
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Neat! Have never checked or noticed if mine are broken. Might investigate.
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| Van B |
May 13 2022, 09:05 AM
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#10
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Senior Member Group: Members Posts: 1,612 Joined: 20-October 21 From: Maryland Member No.: 26,011 Region Association: None
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Both of mine snapped off like glass when I pulled my tank. It's unlikely yours are broken if they've never been disturbed.
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