I'll get a new coil from halfords on the way home. I notice that you can
get a high performance coil from Rimmers for about #10 more, do you think
there's any point in getting a performance coil? Will it improve
performance significantly?
cheers
John
--- "T. .R. Dafforn" <td214@cam.ac.uk> wrote: > The coil is the device
that takes the relatively low voltage the
> battery and
> creates a much higher voltage by induction that is able to produce a
> good
> strong spark at the plugs.
> It is the cylindrical device about 15 cm long and with 3 wires coming
> out of
> it that is mounted on the passenger side of the bulkhead, next to the
> battery..
> The coil energises and de-energises for each spark. thus as the revs
> increase the time between each spark decreases and hence the time for
> the
> coil to complete this cycle decreases. If the coil is knackered it will
> be
> unable to reach a high enough voltage at high revs to give a good
> spark, and
> hence efficient burn of the petrol air mixture...
> So this could be the problem!
> Cheers
> Tim
>
> John Hobson wrote:
>
> > excuse my ignorance, but which bit is the coil? What does it do?
> >
> > cheers
> > John
> >
> > --- "T. .R. Dafforn" <td214@cam.ac.uk> wrote: > Hi John
> > >
> > > If you think its electric it could be that the coil is buggered,
> not
> > > giving
> > > enough juice at high revs?
> > > Not sure of a way to test this though (any help from the list?)
> > > Whatever, Halfords sell a Lucas original coil for not much!
> > > The only time I had this sort of problem I had just fitted some
> free
> > > flow
> > > air filters and hence the whloe system was running weak at high
> revs..
> > > Richer needles and the car started going like stink!
> > > Cheers
> > > Tim
> > > John Hobson wrote:
> > >
> > > > It still struggled after I had switched off the lights, but only
> > > around
> > > > 3000-4000rpm in 1st & 2nd gears (I didn't get into 3rd because of
> the
> > > > heavy traffic). It didn't struggle hugely, not like when it
> totally
> > > > packed up. Still not sure wether this is a mechanical or
> electrical
> > > > problem. Any other tests you could suggest that I can do with my
> > > > multimeter?
> > > >
> > > > cheers
> > > > John
> > > >
> > > > --- "T. .R. Dafforn" <td214@cam.ac.uk> wrote: > Hi John,
> > > > > did the car stop struggling once you turned off the lights etc?
> > > > > Cheers
> > > > > Tim
> > > > > John Hobson wrote:
> > > > >
> > > > > > I have the standard lucas alternator. As far as I'm aware it
> > > doesn't
> > > > > > have an uprated output. It came out of another spit from the
> > > > > graveyard,
> > > > > > the car was a runner. Is there a way of determining the
> output
> > > from
> > > > > the
> > > > > > alternator? What does 'ACU' stand for?
> > > > > >
> > > > > > John & Saskia
> > > > > >
> > > > > > --- Laura Gharazeddine <Laura.G@141.com> wrote: > > I bought
> a
> > > > > multimeter
> > > > > > yesterday and checked the battery, the results
> > > > > > > > were:
> > > > > > > >
> > > > > > > > engine not running
> -
> > > > > 12.9V
> > > > > > > > engine idling, no extras
> -
> > > > > 16.9V
> > > > > > > > engine revving, heater, lights, wipers, stereo,
> indicators -
> > > > > 16.5V
> > > > > > > >
> > > > > > > > Which seems to suggest that the battery/new alternator is
> > > very
> > > > > > > healthy,
> > > > > > > > although the 16V readings were higher than I expected.
> > > > > > >
> > > > > > > What type of altenator do you have?
> > > > > > >
> > > > > > > Although this
> > > > > > > > morning driving to work with lights/heat/stereo on the
> car
> > > seemed
> > > > > to
> > > > > > > > struggle at around 3000-4000rpm (after that I cut the
> > > > > > > > lights/heat/stereo). I don't know if this is another
> > > > > problem(clutch
> > > > > > > > slipping maybe?) or if it suggests that the alternator
> wasn't
> > > the
> > > > > > > problem
> > > > > > > > and my battery is getting drained because of another
> problem
> > > > > > > somewhere
> > > > > > > > along the line. Or I might just be being paranoid as I
> often
> > > do
> > > > > after
> > > > > > > > something breaks on Saskia, I seem to notice any oddities
> > > about
> > > > > the
> > > > > > > car
> > > > > > > > and instantly attribute it to whatever the last problem I
> had
> > > > > was! I
> > > > > > > > wish I didn't worry so much!
> > > > > > >
> > > > > > > Haha! I do the same thing! And if I'm tired, multiply that
> > > paranoia
> > > > > by
> > > > > > > 10!
> > > > > > >
> > > > > > > Laura G.
> > > > > > >
> > > > > > >
> > > > > >
> > > > > > ____________________________________________________________
> > > > >
> > > > > --
> > > > > Tim Dafforn
> > > > > Structural Medicine
> > > > > Department of Haematology
> > > > > CIMR
> > > > > University of Cambridge
> > > > > Wellcome-MRC Building (Level6)
> > > > > Hills Road
> > > > > Cambridge
> > > > > CB2 2XY
> > > > >
> > > > > Tel. (01223) 336829
> > > > > Fax. (01223) 336827
> > > > > http://smokeroom.cimr.cam.ac.uk/
> > > > >
> > > > >
> > > > >
> > > >
> > > > ____________________________________________________________
> > > > Do You Yahoo!?
> > > > Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk
> > > > or your free @yahoo.ie address at http://mail.yahoo.ie
> > >
> > > --
> > > Tim Dafforn
> > > Structural Medicine
> > > Department of Haematology
> > > CIMR
> > > University of Cambridge
> > > Wellcome-MRC Building (Level6)
> > > Hills Road
> > > Cambridge
> > > CB2 2XY
> > >
> > > Tel. (01223) 336829
> > > Fax. (01223) 336827
> > > http://smokeroom.cimr.cam.ac.uk/
> > >
> > >
> > >
> >
> > ____________________________________________________________
>
> --
> Tim Dafforn
> Structural Medicine
> Department of Haematology
> CIMR
> University of Cambridge
> Wellcome-MRC Building (Level6)
> Hills Road
> Cambridge
> CB2 2XY
>
> Tel. (01223) 336829
> Fax. (01223) 336827
> http://smokeroom.cimr.cam.ac.uk/
>
>
>
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