Hi everyone,

yesterday when i went to drive to work early in the morning, my engine developed a miss as soon as i started to drive. i had warmed the engine at idle for a minute or two before setting off.

i thought it may have been related to being cold or something similar. after a 5 km drive no change. no choke was used.

i pulled over and pulled the plugs and found cylinders 1 & 2 were very wet with fuel. there was spark at both cylinders, but both were not firing. i removed the leads while the engine was idling and cylinders 1 & 2 had no change to the missing, indicating those cylinders were the cylinders missing.

i drove the car home and let is sit there until this evening so i could have a look at it. so tonight i started it and had the same issue.

so i removed the carb, pulled it all down cleaned it all out, and re-fitted it, cleaned the plugs, and now it idles and fires on all cylinders again.

what i think happend was while the engine was sitting parked overnight before i had the missing issue, fuel had leaked from the carb into cylinders 1 & 2 and caused the spark plugs to foul the morning i drove it.

what would be causing this to happen? fuel leakage into the cylinders while the engine is turned off overnight.

any ideas? leaking pump jets?

thanks in advance

Jason

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'66 BRG Morris Mini Deluxe 60HP ATW

Maybe float level is set too high? or perhaps there's too much fuel pressure.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Also make sure the Carb is sitting at the correct angle as that will effect float level too.

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