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Turn Over But No Ignition

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#1 foggy


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Posted 10 November 2019 - 08:11 PM

Hi all, I am a fairly competent mini enthusiast, however I am stumped on this one, and hoping for help.
1.1A series
I have taken the 1.5 inch carb off to sort a fuel leak that was picked up at its mot and failed because of it.
I took the carb off and gave it a clean. I didnt strip anything from it. Just tried to see if the leak was coming from the jet area. I gave it an external clean and put it back on the car to see if I could see more clearly where the leak may be coming from.
But now it wont start. The spark plugs are wet with fuel and every spark plug sparks after I took each one out to check.
The engine now turns over but does not fire. I haven't touched the distributor or anything. I'm very confused.
Help needed! Pleeease.

#2 gazza82


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Posted 11 November 2019 - 09:58 AM

Sounds like it could be flooding .. you sure the jet isn't jammed open?

#3 cal844


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Posted 11 November 2019 - 01:01 PM

What I'd do is take the plugs out then let the fuel evaporate out the bores

#4 foggy


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Posted 11 November 2019 - 03:13 PM

Thanks guys. Yes the jet is in its correct position, and operates correctly when I manually turn the choke. The plugs were soaking so I have heard that bore wash us a thing? I will take the plugs out when I get home and leave them out for a day and try again.

#5 foggy


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Posted 11 November 2019 - 03:49 PM

Also I noticed when cranking that it seemed to turn over almost too fast compared to normal. But before the carb came off, everything was running lovely. So I cant see it being anything more sinister than excess fuel.. can you?

#6 hunterg30


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Posted 11 November 2019 - 05:53 PM

The flooding might be washing the bores . As mentioned above is the piston in the carb freely moving and closing.

#7 floormanager


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Posted 11 November 2019 - 08:05 PM

Are you getting voltage on the contact or negative side of the coil with the points open?  If not, either the coil is not working or you are earthing out the low tension circuit.  On a 1979 points distributor, it's possible for the condenser / low tension lead to touch the point bottom plate, preventing the coil from energising.  Just happened to me after an engine rebuild.

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