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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 8:33 pm |
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Could incorrect valve clearances course backfiring at idle?
The car backfires quite alot at idle, I'm getting a new exhaust put on it on Monday and I don't want it to blow my new muffler apart.
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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zukmeista
Joined: Sun Mar 22, 2009 10:30 pm Posts: 1273 Location: Whangarei,N.Z.
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 Posted: Wed Aug 24, 2011 8:36 pm |
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Incorrect ignition setup.
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 8:55 pm |
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All ignition wires are in there right spot
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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peteandliz
Joined: Mon Aug 01, 2011 2:51 pm Posts: 163 Location: brisbane
Vehicle: 93 lwb vitara
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 Posted: Wed Aug 24, 2011 8:56 pm |
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my guess would be your timing is out
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 9:14 pm |
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could be need retarding i reckon. it doesnt backfiring accelerating or decel?
only if it sits there and idles for a bit.
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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peteandliz
Joined: Mon Aug 01, 2011 2:51 pm Posts: 163 Location: brisbane
Vehicle: 93 lwb vitara
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 Posted: Wed Aug 24, 2011 9:51 pm |
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does it ping high in the rpm
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 10:15 pm |
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peteandliz wrote: does it ping high in the rpm Can't really tell cos my taco doesn't work  But to me it sounds like it has more rpm then the usuall idle rpm
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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peteandliz
Joined: Mon Aug 01, 2011 2:51 pm Posts: 163 Location: brisbane
Vehicle: 93 lwb vitara
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 Posted: Wed Aug 24, 2011 10:23 pm |
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is it bacfiring out the exhaust or the carby ???
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 10:26 pm |
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peteandliz wrote: is it bacfiring out the exhaust or the carby ??? Exhaust
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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peteandliz
Joined: Mon Aug 01, 2011 2:51 pm Posts: 163 Location: brisbane
Vehicle: 93 lwb vitara
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 Posted: Wed Aug 24, 2011 10:29 pm |
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have u cheacked all of your spark plugs make sure there working
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Wed Aug 24, 2011 10:34 pm |
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if its ok in all but idle check your mixture is right, your plugs are clean and your leads are good
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 10:36 pm |
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royce wrote: if its ok in all but idle check your mixture is right, your plugs are clean and your leads are good I'll check all that and report back thanks
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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zooky08

az supporter
Joined: Fri Nov 27, 2009 10:30 pm Posts: 3426 Location: imbil/gympie. qld
Vehicle: 03 Jimny
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 Posted: Wed Aug 24, 2011 11:20 pm |
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So I think it was just dirty plugs,
No. 3 lead fell of and it start back firing then until I put it back on.
Now I just got to fix high idle and rpm taco 
_________________ 03 Jimny 30 km2s 75mm lift f&r locked winch
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