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Backfiring G16a

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zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 8:33 pm

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.

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zukmeista

Joined: Sun Mar 22, 2009 10:30 pm
Posts: 1273
Location: Whangarei,N.Z.

Posted: Wed Aug 24, 2011 8:36 pm

Incorrect ignition setup.

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 8:55 pm

All ignition wires are in there right spot

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peteandliz

Joined: Mon Aug 01, 2011 2:51 pm
Posts: 163
Location: brisbane
Vehicle: 93 lwb vitara

Posted: Wed Aug 24, 2011 8:56 pm

my guess would be your timing is out

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 9:14 pm

could be need retarding i reckon. it doesnt backfiring accelerating or decel?
only if it sits there and idles for a bit.

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peteandliz

Joined: Mon Aug 01, 2011 2:51 pm
Posts: 163
Location: brisbane
Vehicle: 93 lwb vitara

Posted: Wed Aug 24, 2011 9:51 pm

does it ping high in the rpm

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 10:15 pm

peteandliz wrote:

does it ping high in the rpm

Can't really tell cos my taco doesn't work :wink:

But to me it sounds like it has more rpm then the usuall idle rpm

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peteandliz

Joined: Mon Aug 01, 2011 2:51 pm
Posts: 163
Location: brisbane
Vehicle: 93 lwb vitara

Posted: Wed Aug 24, 2011 10:23 pm

is it bacfiring out the exhaust or the carby ???

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 10:26 pm

peteandliz wrote:

is it bacfiring out the exhaust or the carby ???

Exhaust

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peteandliz

Joined: Mon Aug 01, 2011 2:51 pm
Posts: 163
Location: brisbane
Vehicle: 93 lwb vitara

Posted: Wed Aug 24, 2011 10:29 pm

have u cheacked all of your spark plugs make sure there working

royce

omnipotent being

Joined: Sun Jun 11, 2006 11:30 pm
Posts: 17216
Location: Pluto

Posted: Wed Aug 24, 2011 10:34 pm

if its ok in all but idle check your mixture is right, your plugs are clean and your leads are good

zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 10:36 pm

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

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zooky08

az supporter

Joined: Fri Nov 27, 2009 10:30 pm
Posts: 3426
Location: imbil/gympie. qld
Vehicle: 03 Jimny

Posted: Wed Aug 24, 2011 11:20 pm

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 :cry:

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