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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Sat Mar 23, 2013 8:08 pm |
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I replace the std carb with a 4K rolla unit some time ago and has been fine untill now. It was fine when parked, didn't get used again for about 2 weeks and was hard to start.
Symtoms - hard to impossible to start to the point of having to put hand over carb top to get it going. - hessitation (bad) under high load, fine at part throttle, idles well. Would be lucky to 5500 in 2nd.
Removes, stripped and cleaned carb, replaced vac hoses, cleaned and checked idle solenoid.
Starts better, but not as good as it was till fault started, high load hessitation is still there.
Run up to 3500-4000 in 2nd and floor it, takes off then holds back, coughs/splutters a bit. idle in 1st, floor it and it will stall. Runs fine on part throttle, ie before secondries open.
Appears to be good atomised fuel flow at primary venturi, but when holding the air flap open and reving hard, the secondries is very ordinary. Jet was checked and was clean, as was primary jet.
Air bleeds?? Power valve?? Where are the actuall air bleeds on these carbs? Any ideas??
Cheers Rick
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JrZook
Joined: Tue Aug 08, 2006 11:30 pm Posts: 5517 Location: Holland Park
Vehicle: Awesome!!
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 Posted: Sat Mar 23, 2013 8:25 pm |
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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Sat Mar 23, 2013 8:28 pm |
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Electric, and flow seems fine
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kenn
Joined: Tue Nov 11, 2008 10:30 pm Posts: 1202 Location: Melbourne
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 Posted: Sun Mar 24, 2013 12:42 am |
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Check your points and coil.
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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Sun Mar 24, 2013 6:37 am |
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kenn wrote: Check your points and coil. lecky ign......checked timing, plugs, leads, cap and rotor......havn't checked coil tho...
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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Sun Mar 24, 2013 8:50 am |
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and a crook coil it was ........
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KEENSY85
Joined: Wed May 09, 2012 12:46 am Posts: 1742 Location: north brisbane
Vehicle: 1985 lwb sierra UTE
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 Posted: Tue Mar 26, 2013 6:39 pm |
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Im just guessing but I think the carbs claged up. If u have fuel in a carb toatly drie out it can dry like paint in side the carb and clag it up. I'm just guessing at this I'm no machinic, also if or was running before fine surely the points and coil are still ok after two weeks of doing nothing
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Tue Mar 26, 2013 6:43 pm |
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did you read the post above yours  it was the coil 
_________________ You're just hating because you don't understand
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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Tue Mar 26, 2013 6:49 pm |
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and now starting and running better than it has is a long time......
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KEENSY85
Joined: Wed May 09, 2012 12:46 am Posts: 1742 Location: north brisbane
Vehicle: 1985 lwb sierra UTE
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 Posted: Tue Mar 26, 2013 7:07 pm |
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atari4x4 wrote: did you read the post above yours  it was the coil  Nope I'm such a Dick 
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Tue Mar 26, 2013 7:30 pm |
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hahahahaha don't be so harsh on yourself.... 
_________________ You're just hating because you don't understand
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KEENSY85
Joined: Wed May 09, 2012 12:46 am Posts: 1742 Location: north brisbane
Vehicle: 1985 lwb sierra UTE
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 Posted: Tue Mar 26, 2013 7:40 pm |
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 need to teach one of my pets to grab me another beer
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rick1970
Joined: Sun Jul 04, 2010 9:39 pm Posts: 303 Location: Dungowan
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 Posted: Tue Mar 26, 2013 7:46 pm |
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Thats what a missus is for And also why im single atm 
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KEENSY85
Joined: Wed May 09, 2012 12:46 am Posts: 1742 Location: north brisbane
Vehicle: 1985 lwb sierra UTE
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 Posted: Tue Mar 26, 2013 7:57 pm |
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Ha ha mines pregnant not good for grabing beer,she asks me to....um try and cook as well and gets cranky when it doesn't work out so good
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