Timing marks way off after fitting electronic ignition

Timing marks way off after fitting electronic ignition

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TwinKam

2,993 posts

96 months

Thursday 30th March 2023
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As was suggested before, you need a timing light with a dial-in advance facility. All you need then is your tdc marks (which you should check for accuracy).
If you've not used one before, this is how they work... to time the spark for say 8°btdc, you set the dial/display on the gun to 8°, rotate your dizzy and, when your timing marks align, it is firing at 8°. Easy to check for the advance at other rpms too, eg set the revs at 1,800, adjust the knob until the tdc marks align, and read off the advance from the gun.
Essential tool, you can get one for under £50 and it'll last a lifetime. Digital ones are dearer than analogue, and are easier to read, but both do the same job.

GreenV8S

30,214 posts

285 months

Thursday 30th March 2023
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Mkol said:
the timign marks are useless
What timing marks?

If you're talking about timing marks on the crank pulley, they are not affected by anything you're doing to the distributor. They may be inaccurate, but that's a separate problem.

Polly Grigora

11,209 posts

110 months

Thursday 30th March 2023
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Going on that you've now checked everything is fitted correctly and happy with the position of the pick-up, the best thing you could do would be to phone accuspark and ask them what they think, there's always the possibility that you've been supplied with the wrong baseplate even though the pick-up position looks correct

Accuspark wouldn't be selling many kits like yours if customers had a problem with the timing being so far out, word travels fast these days with internet

Am taking it that the problem you're now facing is the limited adjustment you can make by turning the distributor as it wont turn around far enough to get the timing correct

Although you shouldn't need to and there's definitely something wrong somewhere, if you were to disconnect all the HT leads from the cap having previously numbered them for where they go, by reconnecting all the HT leads 90 degrees around from there original position (obviously in the correct direction) you will then be able to see the timing marks with the strobe light and set it to 10 degrees BTDC