Little piece of S**T....

[ginettajoe]

kevo said:

We have had a mini mayfair for around 11 years now....And,Its been Ok...All the normal things that usually go wrong..(How long have you...)..
Just lately its been a bloody pain in the arse....When its cold there is no responce from the go pedal at all...First gear even....The engine just stammers and would`nt pull me out of bed on a morning...I have changed/Checked the following :-

Carb twice,
distributor,
points,
condenser,
distributor cap,
2 x needle valves,
Set the points dwell,
Set the timing,
Checked the distributor advance weights + Vacume advance module,
Checked the spark on each plug with a tested...(Good and strong),
Changed coil,
Checked all valve clearances,
kept the dashpot full with oil,
new spark plugs,

The symptoms get better the warmer it gets...As stated 1st gear upover will not pull at all...Just balks out...I have noticed that the fist touch of the accelorator is the most responsive from that its numb and just makes the throttle open sound (Balks)...

Its a 1985 mayfair with 70,000 mls well looked after example.....

Any ideas guys....????Cheers Kev.

Edited by kevo on Friday 3rd August 17:37

Edited by kevo on Friday 3rd August 17:39

Edited by kevo on Friday 3rd August 17:40

Have you checked the simplest and most likely cause, ....... the waxstat jet being worn, .... the needle is biased and wears the jet oval, which allows you to set the tickover mixture, but throws itself out completely when the piston/needle rise. This would explain the reason why it runs a little better when cold because it requires more fuel.

[minitici]

Have you checked the earth wire inside the dizzy (the flexible canvas covered one).
I had one which was making intermittent contact and the car would hesitate when it rocked forward under acceleration.
Sometimes it would not start at all - until I had fiddled about with almost everything else.

[SS HSV]

Fuel starvation causes by a blocked fuel line. Allows enough fuel to flow on startup and tickover but causes starvation over these engine speeds. When you drive the car, while trying to accelerate pull out the choke; does it make any positive difference?

Other thing could be contaminated or bad fuel.

Failing that how much do you want for it?

[Cooperman]

With an SU the little pipe from the float chamber to the jet can get partially blocked.

[kevo]

Thanks to everyone who contibuted to this thread....I appreciate every single comment....
I have now found the problem....(You wont believe it)..
It was the bloody condensers i had....Even,The two new ones...(There must have been a faulty batch)Becouse when i purchased another make of condenser and----Hey presto...Running as sweet as a nut again....

Its a good job it was a mini...I would have spent a fortune on any other car with the bits.....

So,Once again guys...A million thank you`s for your help.....Kev.

[GTRMikie]

kevo said:

It was the bloody condensers i had....Even,The two new ones...(There must have been a faulty batch)Becouse when i purchased another make of condenser and----Hey presto...Running as sweet as a nut again....

I recently fitted a brand new Morspeed engine, along with a new Aldon dizzy to my van, but could not get the thing to run cleanly until I changed the condenser. This will always be the first thing I check if I ever have any problems with any of my minis!

( I also had a brand new HIF44 carb where the float chamber vent had not been drilled out - but that is another story!)