Classic Mini - Misfire Fix

Classic Mini - Misfire Fix
Following a nasty misfire, the parts have arrived to be replaced and ready to get me back on the road.
it's a simple fix, that you may wish to carry out yourselves.
Thanks for watching
Follow me on this journey to get my car finished.
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[@WilliamMurfitt]

there is some misinformation here which i will re address in my next video. sorry for any inconvenience this may cause.

[@rajeshsingh-wz8fx]

William I watched your video yesterday after a you tube search. Was having the same problem. I changed the cap, rotor, ht leads and spark plugs. Running absolutley beautiful now. Thank you for the video.

[@WilliamMurfitt]

Fantastic to hear :)

[@alexwoods1094]

I haven’t had the best experience with those powerspark distributors. I ran one for a while but before I had even hit 500 miles the car developed a nasty flat spot with power dropping off at the top end. When I checked the ignition timing I found that the static was still correct at where I had set it (10’ I think) but the dynamic was wrong with the distributor failing to advance anywhere near enough. I swapped it with one from Minispares which solved the problem. Not sure what the issue was but something inside the dizzy had clearly broken down. I kept the electronic ignition module though-they are ace little things. Loving the videos William-thanks for taking the time to share them.

[@WilliamMurfitt]

I've had mine on the car for 6 years and it's been faultless to be fair to the product

[@andyhillhouse9813]

Looks like a nice simple fix, thanks!

[@WilliamMurfitt]

Thanks for watching :D

[@johnnythefox132]

Another great video William 👍🚗

[@WilliamMurfitt]

Thanks John

[@johnnythefox132]

👍

[@forward160]

Good fix William I would still carry a spare set of plugs cap and Rota.. I agree with Dave parts seem poor quality now days ..

[@WilliamMurfitt]

yes 100% i will have to wait for payday to get some ordered up. in the defence of the original item that was installed the week before my wedding and that was 6 years ago last month. some parts i think have just been rushed to get them built and sold unfortunately.

[@dru0pa]

Great work, still not convinced there is a second mini in that garage.

[@WilliamMurfitt]

100% is, all will be revealed soon

[@ClassicCarCave]

William, Nice easy fix. The sprung carbon pick up or jammed one in your case does seem to be a common problem with minis, Maybe it‘s just me but it does seem the quality of parts for minis seems to be getting worse. Cheers Dave

[@WilliamMurfitt]

yes i agree with you there, some parts are made very poorly lately.

[@LoneStarMini]

Glad the misfire is sorted with a simple fix.... motor on....

[@WilliamMurfitt]

Yup that's it :)

[@wubstah3810]

I have tried everything! Setting static timing properly, New coil fitted, New distributor installed and setup, 4 brand new spark plugs, All earths seem ok, Gaps and points all fine on distributor :(

[@WilliamMurfitt]

Whats the issue you are having

[@wubstah3810]

@@WilliamMurfitt When starting the car on cold start it wont run without pressing the peddle and starts spluttering then dies instantly, can't seem to figure out the issue. It also has a brand new carb put on it that seems to be working fine

[@thedjse]

Nice easy job there bud!

[@WilliamMurfitt]

Cheers pal

[@DBMiniDIY]

Nice cheap fix, fingers crossed that's the issues sorted

[@WilliamMurfitt]

fingers crossed, so far so good. cheers DB

[@paulbrenton939]

And when in the did you feeler gauge the spark plugs?

[@juancmunozr]

Good Job ! BTW what do you think about electronic ignition for the Minis ?

[@WilliamMurfitt]

Well as you saw while at the imm it likes to rain the in UK, so I think the electronic ignition works wonders..

[@tonywood6332]

What spark plugs did you use bud?

[@63MIJ63]

Might be worth carrying a spare coil if you already haven't. The new 'Lucas ' coils don't last at all. Been through lots.

[@WilliamMurfitt]

Cheers matt, yes I do need to sort some spares out as I'm running on Hope's and dreams at the moment

[@trickster8912]

hi william , good video but just a quick point did you check the spark plug gaps before fitting the plugs as an incorrect plug gap can have an adverse effect on the way the engine runs

[@WilliamMurfitt]

Very good shout :) I'll whip them back out and check them, do the gaps differ from 998 & 1275?

[@trickster8912]

@@WilliamMurfitt hi william the standard spark plug gap is 25 thou (.625mm) across the range

[@WilliamMurfitt]

@@trickster8912 excellent thank you

[@trickster8912]

@@WilliamMurfitt Your Welcome

[@Incriveles]

Duuuude, pls help me! My mini sprite 1000cc when in idle the rev starts to get unstable floating crazy up down, but the engine doesn’t stalls. And only start to happens after driving around 20 min. When this happens I release the advanced timing vacuum line and it’s runs idle normally with a bit revs pitching up. When I put the vacuum line back then the revs lowers down and begins unstable again. Any clue!??

[@WilliamMurfitt]

It could be a timing or fueling issue. Are you running points or electronic ignition? Has your carb ever been serviced?

[@Incriveles]

William Murfitt yep I did cleaned the carb SU stock and I’m running an electronic ignition instead the analog coil.

[@Dagowly83]

God damn it! But 3 ugga duggas keeps them safe!

[@WilliamMurfitt]

The tighter the better right?!?

[@MiniMattTV]

It’s fine if you set it to 1/2 ugga duggas then 3 is perfect

[@WilliamMurfitt]

@@MiniMattTV yeah that will do it matt

[@shovelrickshovelhead8713]

You didn’t mention plug gap...

[@WilliamMurfitt]

Very good shout I will be adjusting this in a coming video

[@user-hp5fz3qs1u]

Tried all that and it's still happens

[@WilliamMurfitt]

Have you checked the following; compression, oil in carb, carb is moving correctly internally, spark is strong on all four cylinders, plug gap, spark gap. Timing, fuel mixture?

[@bigmanminivan840]

Tidy boyo

[@WilliamMurfitt]

Thank you very much 😁