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Author:  Drexxle [ Mon Aug 09, 2010 11:11 am ]
Post subject:  Coils

When it comes to coils, is coils aint coils.

i had a GT40 die on sunday. After all the weekend of work got out on the road, tuned the car up, was running beautifully. Planned an outing on Sunday afternoon with some mates. Got out of the driveway and everything died. Coil had popped, blown, died.

Everything except a spark at the plug.

So, whats a good coil.
Is a GT40 Oil Filled Red one good enough
Why would i choose a different one
What kills them (this was new when i left brisbane 15,000km/two years ago)

Author:  Mini Mad [ Mon Aug 09, 2010 1:55 pm ]
Post subject: 

I've used GT40's with minimal problems, generally find BOSCH product good.
Leaving your ignition on with power to the coil will kill them prematurely..

Author:  drmini in aust [ Mon Aug 09, 2010 9:31 pm ]
Post subject: 

If it was the later type GT40 (epoxy filled `transformer' style) some people (particularly racers) have had trouble with em.
The old red oil filled GT40 is a better coil IMO, but Supercrap no longer carry them. Maybe are superseded now, I dunno.
They still carry the oil filled GT40-R, but you need a ballast resistor too.

Author:  Drexxle [ Mon Aug 09, 2010 9:49 pm ]
Post subject: 

are the new epoxy ones still red. i have always used the red oil filled gt40 coils. Im tempted to try one of these gold lucas ones that a certain supplier sells for $60

my GT40 could all be good if it turns out to be the damn ignition switch.

Author:  marks [ Mon Aug 09, 2010 10:08 pm ]
Post subject: 

drmini in aust wrote:
The old red oil filled GT40 is a better coil IMO, but Supercrap no longer carry them. Maybe are superseded now, I dunno.


They are available from Repco last I checked.

Author:  drmini in aust [ Mon Aug 09, 2010 10:43 pm ]
Post subject: 

Robbos had them too, but more expensive.

Drexxle, the new epoxy GT40 ones are still red but are plastic cased, and different shape, similar to those on modern cars.
They are called `GT40T'.

Author:  mini_mad_matt [ Mon Aug 09, 2010 11:14 pm ]
Post subject: 

Vibrations can also damage coils i believe. Perhaps the long haul over shoddy roads did something to it? And as Mini Mad said if you leave the ignition on they get too hot if your not driving around.

Author:  Drexxle [ Tue Aug 10, 2010 8:19 am ]
Post subject: 

vibrations, im picking up good vibrations.....

that oodnadatta, sheesh,. shook the needle off my speedo (destroyed the spring inside the speedo), shook my windows loose, destroyed the ball joints, smashed trailing arm, cones and so on.

and im rebuilding the car to do it all again on the Tanami Track.

Author:  drmini in aust [ Tue Aug 10, 2010 7:03 pm ]
Post subject: 

God knows why BMC put all their coils on the engine, who else does? I now mount mine on the inner guard, where they don't cop engine vibes, and stay dry too.

Author:  GT mowog [ Tue Aug 10, 2010 7:19 pm ]
Post subject: 

Drexxle wrote:
vibrations, im picking up good vibrations.....

that oodnadatta, sheesh,. shook the needle off my speedo (destroyed the spring inside the speedo), shook my windows loose, destroyed the ball joints, smashed trailing arm, cones and so on.

and im rebuilding the car to do it all again on the Tanami Track.


Do it in the right car, do it in a Moke........

Author:  Drexxle [ Tue Aug 10, 2010 7:37 pm ]
Post subject: 

the owner of william creek said to me, he had always seen mokes pass through but he had never seen a mini. he walked inside, grabbed his camera, and took a photo of my car in front of the fuel bowsers. I wonder if a Mini has ever been to Wolf Creek, i know a moke has.

Author:  Monaco [ Tue Aug 10, 2010 8:23 pm ]
Post subject: 

Drexxle wrote:
Im tempted to try one of these gold lucas ones that a certain supplier sells for $60



Lucas is the Prince of Darkness, I would stick with Bosch in preference.

Author:  GT mowog [ Tue Aug 10, 2010 8:27 pm ]
Post subject: 

owen1975richard wrote:
Drexxle wrote:
Im tempted to try one of these gold lucas ones that a certain supplier sells for $60



Lucas is the Prince of Darkness, I would stick with Bosch in preference.


Too right, the Prince's coils are crap. I had two give out in a few days.

Author:  Drexxle [ Wed Aug 11, 2010 8:26 am ]
Post subject: 

two red gt40 oil filled coils put aside at repco for me :P

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