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Old 03-13-2003, 18:38   #1 (permalink)
MK2 Escort 1300GT
 
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escort|Fuel Problems

Since running the escort on unleaed plus additive. the car seems to be idling funny like it goes up and down doesnt stay steady. could it be coz unleaded is to low in octane? should i run opitmax/vortex
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Old 03-13-2003, 23:05   #2 (permalink)
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Run Vortex and Valvemaster additive. That Valvemaster stuff has been tested and it works. That should do the trick.

You can get Valvemaster Plus which has an octane booster, which might work out cheaper, you would have to do the maths.
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Old 03-14-2003, 03:35   #3 (permalink)
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Make sure the nylon bush in the carby isn't stuffed.

If it is the butteryfly in the bottom in the carb will not be closing to the same position every time it closes.

I had the same on a Escort 2.0 running a 40/40 webber carb from a V6 Capri.

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Old 03-14-2003, 04:57   #4 (permalink)
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I has it a guess its more to do with tune,in there some where like loose springs on your dist advance, wrong fuel level in carb, needle & seat,butterfly etc loose, have you checked the valve clearance/ tappets etc with unleaded you may have valve recession[sinking into head] due to wear. Check compression..But I would think this to be more of a consistant miss rather then high/ low idle..
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