86 5kcstq code 2113

isham-research.freeserve.co.uk at pop.pol.net.uk isham-research.freeserve.co.uk at pop.pol.net.uk
Tue Mar 6 18:43:05 EST 2001


> The bentley states "CAUTION The function of the power output stage of
> the coil can NOT be checked." reference; 1990 200TQ - MC turbo with 2
> Knock Sensors

> You can test around it and obvious failures require replacement but
> the final spark can't be tested.

Oh, I don't know.  If you let Roger Galvin mess around with a loose
plug held to ground on top of the engine, he'll generally forget
what he's doing after a few seconds and take a belt from it.  Sends
him hopping around the workshop swearing like a demented pixie with
a rusty nail in one foot.  Not recommended procedure - this system
is DANGEROUS.

The alternative is a Gunson spark cell.  You can even leave it in
circuit for start attempts.  The 'coil testing' spark is a dull deep
orange thing - the real McCoy is MUCH brighter and also visibly
of longer duration.

Not an official test, but I find it useful.  The output stage can't
be checked tha way a normal coil can, though.

--
 Phil



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