Need a carb .12 1/10 On-Road

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Old 07-26-2011, 04:10 PM
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Default Need a carb .12 1/10 On-Road

Got an HPI .12 engine that I need a carb for; it has a 12.5mm OD barrel(.492in) that slides into the crankcase. It is held in place by a locking stud and nut on the crankcase and seals by an O-ring slid up onto the barrel. My best guess is that any .12 to .18 size engine carb, rotary or slide type, would work right dandy so long as it fits the crankcase.

Can't imagine needing a carb for an HPI engine (LOL). Engine is a pull start in a 2 speed shaft drive HPI On-Road 1/10 scale car. The car was given to me by a neighbor who got it in a package RC deal, and he was after other car stuff in the package. The little engine was strong and the car was in good working order and ran well; however the fuel inlet broke off and it has been so long that I have had the carb off looking for parts that the carb has froze up.

At any rate, I'm looking to sell the car and a TC3 I have and would prefer both to be in working order. Any help would be appreciated.

CC
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Old 07-28-2011, 04:24 PM
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Default carb

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Old 07-28-2011, 05:52 PM
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will the 10M OS 12/15 carb work? if so i have one. this carb sells for 58.99$ il take 20$ shipped in excellent condition.
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Old 07-28-2011, 08:18 PM
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toepush,

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10m I believe has 12.9mm barrel- won't fit.

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Old 07-28-2011, 08:28 PM
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i have a hpi carb from a 12 i just remembered it. let me see if i can find it.
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Old 08-02-2011, 03:42 PM
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Graphite07,

Sorry my friend, but you were right about the OS 10 size carb fitting. Seems that OS specs are incorrect, or at best misleading to us average mere mortals. Spec says carb throat is 10 mm. The hole it fits in the crankcase is 12.5 mm - I would say that is a 12.5 mm throat. Maybe a misprint or a translation issue between Japanese and English about what a throat size represents.

Went for a little ride to an old school hobby shop with a big box of used carbs and bits. Found a OS 10E in new condition that is a perfect drop in for the rotory carb that came off the HPI 12R SS I have. Direct replacement for HPI part # 1747 and the OS 10C is a replacment for the HPI part # 1746

I always hate when folks don't close threads with problems without solutions. I hope this helps the next bloke who is having the same issue finding carb parts for the HPI .12R SS engine.

Thanks all for the help,
CC
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