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Hr won't start - Burning out ignition coils
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Harry777 Offline
#1 Posted : Thursday, 2 March 2023 6:01:08 PM(UTC)
Harry777

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Hi All,

Got a 1966 Holden Hr Wagon and it won't start. Got fuel but no spark. I think it has burnt out the coil, this will be the second one in 2 months.
It has electronic ignition which i believe is out of a VH commodore, running with a Bosch HEC 716 coil.
Any thoughts why the coils are burnig out?
Cheers
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HK1837 Offline
#2 Posted : Thursday, 2 March 2023 6:30:50 PM(UTC)
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Have you modified the wiring so the coil gets 12V not 9V?

On later Holden all you do is pull the ignition switch out and solder a bridge between the Start and Run terminals. Not sure if HR is the same setup but should be.
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If we all had the same (good) taste, who would buy all the Fords?
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Harry777 Offline
#3 Posted : Thursday, 2 March 2023 6:50:11 PM(UTC)
Harry777

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Not sure about that, set up was in car when i bought it 6 years ago. All has been good except in the last few months.
Will check ignition switch. Does soldering the bridge remove the resistance wire out of the loop?
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HK1837 Offline
#4 Posted : Thursday, 2 March 2023 7:02:37 PM(UTC)
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Yes. You can do it other ways but that is the easiest way.
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Harry777 Offline
#5 Posted : Thursday, 2 March 2023 7:04:31 PM(UTC)
Harry777

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Cheers will check that out
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HK1837 Offline
#6 Posted : Thursday, 2 March 2023 7:52:10 PM(UTC)
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It may not be the cause of your problems but might be. Note you can buy new traditional style HEI coils now from Goss. Part number C176 I think it is.
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If we all had the same (good) taste, who would buy all the Fords?
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Harry777 Offline
#7 Posted : Thursday, 2 March 2023 9:37:40 PM(UTC)
Harry777

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Appreciate the info will check that out also
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