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 Post subject: Ignition coil?
PostPosted: Thu May 24, 2007 9:18 am 
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1098cc
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What is the correct type of coil to use?

This is for my GT, which is standard.

I think my coil has pooped itself, and I want to attempt to get it running again this weekend.


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 Post subject: Diag-nose-this
PostPosted: Thu May 24, 2007 2:31 pm 
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1360cc
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Try swapping another used coil first...they do fail, but they are not often the real problem.

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 Post subject:
PostPosted: Thu May 24, 2007 2:41 pm 
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1098cc
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aint got no spare coils..... would have done that already.

So far I have replaced: Points, condensor, dizzy, leads, plugs, carby, fuel filter.

The coil is the only thing I haven't replaced :lol:

Still can't start the bastard!


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 Post subject:
PostPosted: Thu May 24, 2007 2:52 pm 
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Location: Wodonga - Vic/NSW border
the one that's listed in the Repco parts book ;)

GT40 - non 'R'

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 Post subject:
PostPosted: Thu May 24, 2007 2:54 pm 
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BUT IT'S NOT ORIGINAL!!!!! :shock:

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 Post subject:
PostPosted: Thu May 24, 2007 3:13 pm 
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848cc
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I know it sounds wacky....but, if you have a tacho (some folks don't) check wiring to it hasn't shorted somewhere. That will short out the system and give you NO spark. Happened to me once , replaced heaps of stuff, still wouldn't start, NO spark, then I noticed the wire that ran thru the fire wall from tacho to the coil had melted against the extractors shorting the system, replaced wire, Vvvrrooommm.

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 Post subject:
PostPosted: Thu May 24, 2007 3:25 pm 
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1098cc
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Hmmmnn I guess the tach wiring could be dodgy, obviously Anton's GT has tacho as standard, never tried disconecting one, but I suspect it would be in parallel, not in series?

8)

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 Post subject: someone? anyone?
PostPosted: Thu May 24, 2007 3:32 pm 
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GT wrote:
aint got no spare coils..... would have done that already.

Sydney is a big place...there is probably a spare coil for loan within walking distance :D

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 Post subject:
PostPosted: Thu May 24, 2007 3:57 pm 
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cmohr wrote:
I know it sounds wacky....but, if you have a tacho (some folks don't) check wiring to it hasn't shorted somewhere. That will short out the system and give you NO spark. Happened to me once , replaced heaps of stuff, still wouldn't start, NO spark, then I noticed the wire that ran thru the fire wall from tacho to the coil had melted against the extractors shorting the system, replaced wire, Vvvrrooommm.



Hmmm....VERY interesting comment!

As Graham said, my GT obviously does have a tacho. Since I bought the car (a month ago?) the tacho has not worked. The PO said it didn't work, and I just thought the ribbon curcuit thinggy on the back of the gauges was knackerd. I haven't checked it yet, but that isa common fault.

On the other hand, I did an engine swap on a Mini a while back and didn't connect the tacho, and sure enough it wouldn't start. Rang Kev (DrMini) and he said attach the wire for it. Sure enough it started after that.

I'll check the tacho wiring on the weekend.

Simon, you say GT40 coil. What is the difference between that and a GT40-T ?


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 Post subject:
PostPosted: Thu May 24, 2007 5:21 pm 
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998cc
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On a similar note, how do you tell whether you need a "resistor" coil or a non one? is there something in my dizzy that will tell me as my current coil has no labels on it

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 Post subject:
PostPosted: Thu May 24, 2007 7:13 pm 
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1275cc
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GT wrote:
aint got no spare coils..... would have done that already.

So far I have replaced: Points, condensor, dizzy, leads, plugs, carby, fuel filter.

The coil is the only thing I haven't replaced :lol:

Still can't start the bastard!


you haven't replaced the fuel pump yet

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 Post subject:
PostPosted: Thu May 24, 2007 7:59 pm 
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GT wrote:
cmohr wrote:
I know it sounds wacky....but, if you have a tacho (some folks don't) check wiring to it hasn't shorted somewhere. That will short out the system and give you NO spark. Happened to me once , replaced heaps of stuff, still wouldn't start, NO spark, then I noticed the wire that ran thru the fire wall from tacho to the coil had melted against the extractors shorting the system, replaced wire, Vvvrrooommm.



Hmmm....VERY interesting comment!

As Graham said, my GT obviously does have a tacho. Since I bought the car (a month ago?) the tacho has not worked. The PO said it didn't work, and I just thought the ribbon curcuit thinggy on the back of the gauges was knackerd. I haven't checked it yet, but that isa common fault.

On the other hand, I did an engine swap on a Mini a while back and didn't connect the tacho, and sure enough it wouldn't start. Rang Kev (DrMini) and he said attach the wire for it. Sure enough it started after that.

I'll check the tacho wiring on the weekend.

Simon, you say GT40 coil. What is the difference between that and a GT40-T ?

GT 40 is a 3 ohm coil, round, oil filled.
GT40-T is a 3 ohm coil, transformer shape, epoxy filled.
The T's work no better, and some racers say they fail earlier. If ya want one I have one here, near new, price neg. :wink:

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 Post subject:
PostPosted: Thu May 24, 2007 8:38 pm 
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1098cc
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Mick, the fuel pump was replaced by PO just before I bought the car. It's working fine :wink:

Kev....might take you up on that offer. I need to try another at the least to see if I can start the bastard!


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 Post subject:
PostPosted: Thu May 24, 2007 11:20 pm 
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cush wrote:
BUT IT'S NOT ORIGINAL!!!!! :shock:


once you peel the sticker off it looks original....

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 Post subject:
PostPosted: Thu May 24, 2007 11:38 pm 
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1275cc
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Joined: Mon Apr 26, 2004 6:31 pm
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Location: Sydney - strangely, I am glad of the sight of hills!!
[quote="GT"]Mick, the fuel pump was replaced by PO just before I bought the car. It's working fine :wink:
[quote]

just a bit topical fuel pumps at the moment. my brothers race cars pump to the swirl tank was not pumping enough to keep the swirl tank above the injector pump pickup for more than about 8 seconds. It was fine on the dyno because they never ran more than that at full throttle for each power run. but at Wakefield last weekend it was dying for a bit, then eventually it would fill the swirl tank up and it would come alive all of a sudden. caused him to have a nasty spin going up the hill, and he stopped about 2 feet from the tryres around the top flaggies shack :oops: he has ordered a new one

cheers
michael

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