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Hunting engine
Classic Cars (UK) Classic Cars in the UK (uk.rec.cars.classic)
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#1
 
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Hunting engine -
07-02-2008
, 10:42 AM
#2
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Since my wifes 1985 escort was motted ,it has been sick. I suspect they have damaged the carb mixture screw as the co analyser readout is extremely low . The engine revs go up and down every second and screwing in the mixture screw (VV carb) makes it worse . Haynes says screwing the mixture screw weakens but is hunting cause by a rich mixture?.The plugs are getting sooty also. I have put in a new cb and checked timing. ? thanks for any light on cause of hunting Steve I don't know the VV carb, but sooty plugs plus hunting suggests wrong |
the seating? Is the float set wrong or sticking? Is the air filter
dirty or clogged - or wet. Is the mixture screw cross-threaded?
Start by assuming that the mechanic tried to correct a mixture error for
the exhaust test and mucked something up. Go through the manual and see
what he might have changed.
Jim
#3
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Since my wifes 1985 escort was motted ,it has been sick. I suspect they have damaged the carb mixture screw as the co analyser readout is extremely low . The engine revs go up and down every second and screwing in the mixture screw (VV carb) makes it worse . Haynes says screwing the mixture screw weakens but is hunting cause by a rich mixture?.The plugs are getting sooty also. I have put in a new cb and checked timing. ? thanks for any light on cause of hunting Check the diaphragms - they're notorious for splitting. |
--
Conor
I only please one person per day. Today is not your day. Tomorrow isn't
looking good either. - Scott Adams
#4
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In article <g4g7m2$h5c$1 (AT) south (DOT) jnrs.ja.net>, Steve Tames says... Since my wifes 1985 escort was motted ,it has been sick. I suspect they have damaged the carb mixture screw as the co analyser readout is extremely low . The engine revs go up and down every second and screwing in the mixture screw (VV carb) makes it worse . Haynes says screwing the mixture screw weakens but is hunting cause by a rich mixture?.The plugs are getting sooty also. I have put in a new cb and checked timing. ? thanks for any light on cause of hunting Check the diaphragms - they're notorious for splitting. -- Conor I only please one person per day. Today is not your day. Tomorrow isn't looking good either. - Scott Adams |
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