| [ Total Views: 599 | Total Replies: 10 | Thread Id: 95553 ] |
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 Mattriots
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| posted on February 26th, 2012 at 05:35 PM |
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Loose volume control screw- H30/31
Just bought a brand new H30/31,
I'm trying to tune it, but when I back out the volume control screw the required 2.5 turns to het it to the starting point, its is very loose.
Infact when the engine idles the screw jiggles around
Anything over one turn out from a snug seated position feels loose
Any ideas??
Can I tune it and then plug the screw with something or locktite it so it won't move??
Cheers
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pod
A.k.a.: paul mrvw061
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| posted on February 26th, 2012 at 05:45 PM |
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is the o-ring still in there?
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 Bizarre
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| posted on February 26th, 2012 at 05:49 PM |
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ditto ^^^
I have had a pict where the screw just went walk about
New O ring and all good
Futue te ipsum!!!
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Mattriots
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| posted on February 26th, 2012 at 06:21 PM |
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Does the o ring sit behind the screw or is it visible from the outside??
I can't see one, but I have not completely screwed it out
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Bizarre
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| posted on February 26th, 2012 at 07:42 PM |
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it sits on the screw
You need to take it out and there should be an O ring sitting on the screw
My guess is it is either missing (but this is new?? "new" never ceases to amaze me) or it is somehow squashed/shagged/flat
This is a Weber ADF mixture screw - but you get the picture
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Futue te ipsum!!!
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Mattriots
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| posted on February 26th, 2012 at 07:44 PM |
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O ring is there, just checked
But it doesn't seem to be sealing properly
Either the o ring isn't big enough, or more likely the hole has been drilled too big
An ideas on a fix?? Should I try and get a bigger o ring? Do they even make them with the same ID but bigger OD??
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Mattriots
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| posted on February 26th, 2012 at 08:03 PM |
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My vol screw has a cone on the end, then it goes the the threaded section, then there is a step up in diameter with a recess cut into it where the o
ring sits
It
Doesn't sit on the threaded section
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Mattriots
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| posted on February 26th, 2012 at 08:30 PM |
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It looks like this
http://www.google.com.au/m/search?site=images&client=safari&hl=en&...
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Bizarre
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| posted on February 26th, 2012 at 08:36 PM |
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Take it to a carb shop
They will have a heap of O rings
Hopefully it is just a dud O ring
It happens
Futue te ipsum!!!
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Bizarre
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| posted on February 26th, 2012 at 08:39 PM |
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like this??
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Futue te ipsum!!!
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Mattriots
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| posted on February 27th, 2012 at 12:07 AM |
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Pretty much like that!
The o ring is in perfect condition, I think the hole in the carb has just been drilled too big
I'll try and source a bigger o ring tomorrow
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