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06-02-2020, 08:26 PM
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#1 |
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Walbro carb fuel inlet
Has anybody rotated the fuel inlet on a walbro carb? I have a Vogelsang 90 deg bend on a G38, and the fuel inlet is about 1/4 of an inch from the cylinder head. Would like to rotate it 1/4 of a turn away from the head.
Tim J
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Tim J MAAC # 92979 Futaba T18MZ / T16IZ Too many rc's to list. Build fly crash, repeat!! |
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06-02-2020, 11:13 PM
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Re: Walbro carb fuel inlet
Tim, these links to posts on Walbro fuel nipple removal/rotation may help.
Roger https://forum.largemodelassociation....pic.php?t=4731 https://www.rcuniverse.com/forum/gas...el-nipple.html |
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06-03-2020, 08:42 AM
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#3 |
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Re: Walbro carb fuel inlet
If it's plastic it's risky to move it as they can break, though I have moved a few with success . if it's steel it's no problem they rotate quite easily , though it does require some force to break it free. I always use a bit of red loctite around the base of the nipple when I move it , it will leach in and lock the nipple firmly in the new location. you will see once you break the fitting free it will move quite easily so you want the loctite to keep it secure in the new location . cheers
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06-03-2020, 10:59 AM
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Re: Walbro carb fuel inlet
The plastic nipple is fitted onto a brass inlet. Don’t try to rotate, as it will break. Pry the plastic nipple off of the brass fitting and then press onto the fitting in the desired position. Be very careful as the plastic nipple is easily broken.
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06-03-2020, 12:35 PM
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#5 |
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I am: Tim J
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Re: Walbro carb fuel inlet
Thanks for all the info! Will see what happens if I pry it out or try and turn it.
Tim J
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Tim J MAAC # 92979 Futaba T18MZ / T16IZ Too many rc's to list. Build fly crash, repeat!! |
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06-03-2020, 01:25 PM
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#6 |
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Level 3 Supporter
★ Site Supporter ★
I am: Tim J
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Re: Walbro carb fuel inlet
Popped the plastic fuel fitting off of the spline, but cracked it anyway.
Back to the drawing board.
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Tim J MAAC # 92979 Futaba T18MZ / T16IZ Too many rc's to list. Build fly crash, repeat!! |
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06-03-2020, 04:38 PM
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#7 |
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Re: Walbro carb fuel inlet
Good luck getting a new one from horizon. I ordered one and it took months.
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06-03-2020, 04:45 PM
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#8 |
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Level 3 Supporter
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I am: Tim J
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Re: Walbro carb fuel inlet
I have a metal one to replace it, just not sure how to get the brass one out!
Tim J
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Tim J MAAC # 92979 Futaba T18MZ / T16IZ Too many rc's to list. Build fly crash, repeat!! |
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06-03-2020, 05:08 PM
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#9 |
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Level 3 Supporter
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I am: Tim J
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Re: Walbro carb fuel inlet
B&B Specialties sell the metal replacements.
Tim J
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Tim J MAAC # 92979 Futaba T18MZ / T16IZ Too many rc's to list. Build fly crash, repeat!! |
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06-04-2020, 11:04 AM
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#10 |
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Re: Walbro carb fuel inlet
Usually after the plastic breaks and the brass inner is exposed, its a pretty easy pull.
Real trick when you get metal replacement from b&b is that it will be a loose fit. Take a pointed punch, and make 8 -12 light dents around the hole about 1mm from the hole edge. It will close the hole in the soft carb metal, and when you repress, it will press in with no leakage. If you want to go a step extra, tiny dab of red or blue locktite doesn’t hurt. But i press the new nipple half way, then add the dab, make sure it wets around the shaft, and complete the press. I broke a plastic one years ago. B&B part cost was nothing compared to shipping. I got 8-10 nipples. I done 5-6 repairs over the years for friends.
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