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John Ballard
valued contributor
Joined: 11 Feb 2004
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Location: Dubbo NSW
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grant69
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Joined: 27 Jan 2004
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Location: Cairns Nth Qld
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 Posted: Mon Oct 17, 2005 8:25 am Post subject: |
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| no you shouldn't require a resistor - it is there to modify spark, you will get a better spark without it, just don't leave the key on without the engine running as the coil can overheat more quickly, make sure the points gap is set correctly also, as more spark can jump around in the dist and give you wierd firing
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Scouse
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Joined: 15 Sep 2003
Posts: 5266
Location: Wollondilly, NSW
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| Posted: Mon Oct 17, 2005 10:05 am Post subject: Re: Coils |
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| John Ballard wrote: | Question is do I need to fit resistor as stated on the coil?
It is a Bosch GT40 .
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John, are you saying the coil states to use a resistor ??
If so, it's a GT40R, not a GT40.
The GT40R is a 9volt coil which is why the resistor is needed (to reduce 12v to 9v).
The resistor is bypassed when starting to allow for the battery to drop down to 10v or 11v while cranking & still allow a good spark to the engine.
If you use a resistor coil without a resistor, it will only last a short while.
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Pedro
learning to change gears
Joined: 14 Apr 2005
Posts: 50
Location: Adelaide
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