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Location:
Adelaide
Registered:
May 2002
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 4AC probs
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Mon, 27 January 2003 04:20
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my 4AC is running really bad (not that it ever ran good as such).
It starts and idles normally for a few seconds and then the revs slowly drop till it dies. It Starts ok every time and if i rev it its ok but stopping at traffic lights is rather an annoyance!
Any Ideas on where to start looking? Does this problem sound farmiliar?
Cheers for any help...
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Location:
Sydney
Registered:
May 2002
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Re: 4AC probs
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Mon, 27 January 2003 04:26
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try adjusting you idle screw in the carby.
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Location:
Newcastle
Registered:
September 2002
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 Re: 4AC probs
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Mon, 27 January 2003 06:22
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I had a problem that was sounds just like that! I eventualy found that the auto chock was playing up. as i had a spare carby i just swap them over and it hasnt done it! 
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Location:
Adelaide
Registered:
July 2002
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Re: 4AC probs
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Mon, 27 January 2003 06:44
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maybe a vacuum leak, check the PCV valve, tho that would usually make quite a loud hissing sound hmm worth a shot
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Location:
Adelaide
Registered:
May 2002
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Location:
Face down in a ditch
Registered:
May 2002
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Re: 4AC probs
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Mon, 27 January 2003 09:45
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Also check that the leads are properly secured.
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Location:
Sydney, Australia
Registered:
May 2002
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Re: 4AC probs
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Mon, 27 January 2003 19:46
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you could also try checking for air leaks around the carby, maybe a vacuum hose has popped off somewhere or maybe the gasket is leaking.. just a thought...
rgrds
sam
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Registered:
December 2002
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Re: 4AC probs
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Wed, 29 January 2003 00:25
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I have had a simmalar problem just recently mine was a combo of the auto choke and the timing, i have since got the timing belt replaced. just a tip, if you want the 4ac to go harder... advance the timing til it pings nock it back a few degrees and bingo you have yourself a pocket rocket that should by rights knock off most standard ae92's he he he...
I'm not sure how long that will make the engine last tho. not that i care i'm putting in a 7A-FC!! (7A-FE block and 4A-FC head)
Billus McFlunday
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