backfire out of carb

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dhenry
998 Cooper
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Joined: Thu Jun 24, 2010 3:00 pm

backfire out of carb

Post by dhenry »

Hello,

I am sure this is fairly rudimentary and should apply to all internal combustion engines but i thought I would throw it out there.

Last night driving home I experienced this problem just the once. I pulled away from a junction, shifted to second. It pulled away just fine then it bogged for about 1 second, backfired out of carb and then carried on as if nothing happened. And its been fine today.

Any ideas? It had a new distributor a couple of weeks ago but had been running like a champ ever since. Possible air leak? Stuck valve? I was on an empty tank. Filled it up this morning. I also think my fuel pump is dying (new facet ordered yesterday).

I am driving to Devon next week so if there is a problem I would prefer to tackle it before i go. The thing is is that it will probably never happen again. Cheers,

Daniel
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Re: backfire out of carb

Post by mk1 »

The thing is is that it will probably never happen again.

I think you are probably correct. Just one of those things that happens occasionally for no real reason. Make up a small spares pack, points, plugs, etc. for your trip to Devon & forget about it, I'm sure it will be fine.
guru_1071
1275 Cooper S
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Re: backfire out of carb

Post by guru_1071 »

if the fuel pump is playing up it might have been one of the carbs running lean and spitting back in protest

my sprint does it when the fuel filter is blocked and it slowly does it more and more until it just conks out - its not so bad now, it manages about ten months between filter swops now!
please note, these are my own, individual sales, nothing whatsoever to do with my employer, minispares
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dhenry
998 Cooper
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Re: backfire out of carb

Post by dhenry »

That was my first assumption. I know the fuel pumps dodgy and I was running on empty. Every chance I sucked up some crap from the bottom of the tank or something and leaned out the carb. Hasn't done it since so fingers crossed.
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