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Idle is erratic while stopped. 200 1983

posted by  machine man on  Fri May 17 10:43 CST 2019
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last visit: Wed Oct 22 15:40 CST 2014
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Hi,

Double check the accordion snorkel tube behind the AMM as there might be a pin hole in a volute or a loose fitting clamp. Put a fluorescent light tube up the middle and flex the hose in a darkened place.
I found that to be the case, when I had an unpredictable idle shake or stall, at a stop light.
I believe it was do to the engine twisting just enough while coming to a stop, that it opened up a crack temporarily.
Sometimes there can be a partial crack around one of the nipples that go off to a hose. Either of the two hoses can upset the mixture and make it go into a lean misfire situation.


Phil






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New Idle is erratic while stopped. [200][1983]
posted by  NewMexico240 subscriber  on Thu May 16 15:32 CST 2019 >


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