90 1275 non cooper s . On the throttle the car runs great. Dip the clutch at a stop and car stalls. Barely even tries to idle. Checked idle mixture using color tune and no matter how much I turn mixture screw it will not show yellow only blue. Also air fuel ratio is 14-15 throughout rpm range but at idle goes off Guage at 18+ any ideas? Vacume leak or manifold leak?
1275 Will Not Idle
Started by
bigfish
, Jul 15 2016 12:49 AM
3 replies to this topic
#2
bigfish
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Passed Test
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Posted 15 July 2016 - 12:52 AM
A touch more info,.... it previously would idle but would drop 300 to 400 rpm then return to 900 idle. So I think it is safe to say same issue just got worse? Thanks
#3
carbon
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Up Into Fourth
- Location: UK
Posted 15 July 2016 - 04:40 PM
Suggest you check your crank endfloat in case the crank thrust washers are on their way out.
Do you get any unusual noises when you dip the clutch?
#4
bigfish
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Posted 16 July 2016 - 01:43 AM
I think I found the problem. The vacume line to the brake booster had a Crack in it. Seems to be good now.
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