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Old 12-21-2009, 01:43 AM   #1
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Default sealing carb of nitro engine

HI guys,

I want to seal the carb off my caster mk 21. do i need to remove the carb or can I apply a long bead around the carb.

I have removed carb before . not only was it a nightmare. but i found the sealant getting scrapped away when i force the carb back inside
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Old 12-21-2009, 01:50 AM   #2
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you can do it from the outside with the Lucky 7/Racers Edge type, just use a small flat head to spread it
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Old 12-21-2009, 02:04 AM   #3
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Default thanks!

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Originally Posted by imaxx21 View Post
you can do it from the outside with the Lucky 7/Racers Edge type, just use a small flat head to spread it
thanks
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Old 12-21-2009, 02:53 AM   #4
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i would just bring it out enough to get the bead just inside so when it is fully in it will seal properly
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Old 12-21-2009, 05:24 AM   #5
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Quote:
Originally Posted by muaythai View Post
HI guys,

I want to seal the carb off my caster mk 21. do i need to remove the carb or can I apply a long bead around the carb.

I have removed carb before . not only was it a nightmare. but i found the sealant getting scrapped away when i force the carb back inside
some will come off, but the right amount stays. is the carb having issues? if not i would leave it alone if you are not sure how to do it.
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Old 12-21-2009, 05:48 AM   #6
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Default sealing

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some will come off, but the right amount stays. is the carb having issues? if not i would leave it alone if you are not sure how to do it.
no. well not that i noticed. its just a few caster has had air leaks. just seen another yesterday at a track. just like mine, the bottom end was richen till the screw looked like it was about to come out , but the engine still sounded too lean when accelerating.

the poor chap DNF with a engine about 300f!

mine went the same way a few months back. i had a leak in my exhasut gasket but i think there was a leak some else since it got so hot
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Old 12-21-2009, 06:04 AM   #7
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Quote:
Originally Posted by muaythai View Post
no. well not that i noticed. its just a few caster has had air leaks. just seen another yesterday at a track. just like mine, the bottom end was richen till the screw looked like it was about to come out , but the engine still sounded too lean when accelerating.

the poor chap DNF with a engine about 300f!

mine went the same way a few months back. i had a leak in my exhasut gasket but i think there was a leak some else since it got so hot
sounds like a front bearing leak or maybe a kinked line? seal it up to be safe, i have 4 grenades and the only issues i ever had were cracked cases... oh oh check for that. the top is good but the idle is very inconsistent, it goes from too lean to good to too rich.
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Old 12-21-2009, 06:04 AM   #8
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double post...
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Old 12-21-2009, 08:31 AM   #9
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Lucky7RC Engine Sealant should be used externally only. Use it like a coating, not like a gasket.

http://www.lucky7rc.com/product_info...roducts_id=247
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Old 12-21-2009, 08:58 AM   #10
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L7 FTW!
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