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MVVS Support Get support from 3 qualified MVVS Forum Hosts. Dar Zeelon, representative from Israel. David Moen, representative from Canada. Pe Reivers, representative from Netherlands.

8.0 Question for Dar or Pe

Old 08-28-2008, 09:51 PM
  #1  
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Default 8.0 Question for Dar or Pe

Hello Gentlemen

I recently broke-in & installed a New MVVS 8.0 engine on a 3D plane.

The problem I have is the carb barrel starts to stick after the 2nd flight.

I then take the barrel out & remove a small burr from housing & 360 grit emery paper the barrel & reassemble & it is fine for 2 more flights before sticking again.

Rather than do the same procedure again I decided to ask the experts as the old style carbs never gave me an ounce of trouble.

Suggestions please??

Thanks, Mike

Old 08-29-2008, 05:32 PM
  #2  
pe reivers
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Default RE: 8.0 Question for Dar or Pe

The barrel groove top probably is sharp, and runs against the guide slot bolt. this causes a slight burr to form. If you chamfer the top of the cut groove, there will be no burr to interfere with barrel movement/rotation.
OTOH, It may be just plain debris or a binding idle needle inside the spray bar, so check/clean/alighn very well.
Old 08-29-2008, 06:16 PM
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Default RE: 8.0 Question for Dar or Pe

Pe,

Thanks for the fast response.

I needed your input before i did just that.

Thanks, Mike

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