Electronic ignition initial timing?
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Having refitted the engine / box, I'm just at the point of adding the other bits when it accured to me that
I could have a problem setting the initial ignition timing as the thing has an sparkly new accuspark distributor.
No does one find the actual firing point?
Sorry it is in the **** obvious department!
Vince
I could have a problem setting the initial ignition timing as the thing has an sparkly new accuspark distributor.
No does one find the actual firing point?
Sorry it is in the **** obvious department!
Vince
- vincereynard
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Hi,
As I understand things, accurate static timing is not possible with this type of electronic ignition.
Method :- Point rotor arm directly at No 1 cap pickup at TDC. This is close enough to start engine then use timing light and adjust.
Ron.
As I understand things, accurate static timing is not possible with this type of electronic ignition.
Method :- Point rotor arm directly at No 1 cap pickup at TDC. This is close enough to start engine then use timing light and adjust.
Ron.
- Craven
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I know absolutely nothing about them.....but.....set the crank markings to 10 btdc ( or whatever you prefer ) on No1 compression , point the rotor arm to just before No1 pickup,replace the dissy cap and with the ignition on , and a timing light or even the spark plug connected , rotate the dissy till you see ( or hear ) the spark..
Works on lumenition.
John
Works on lumenition.
John
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john.p.clegg - Coveted Fifth Gear
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Well he knows how to set static timing on a Lumenition Optronic ignition set up or a CB points set up, thats a lot more than nothing and more than 99.9% of todays motorists would know.
Hall effect triggering needs the engine to be cranking to generate a spark.
Hall effect triggering needs the engine to be cranking to generate a spark.
- Chancer
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Now,now boys,lets not argue,Sorry Ron I know I posted after you but didn't see your post,the fitting instructions are here...
http://www.accuspark.co.uk/fitting_guide.html
maybe they shouldn't call it a trigger ring??
10. Push the supplied trigger ring down onto the centre cam , this should be a snug fit , if loose some kits are supplied with a packing piece place this on first then push the trigger on .If nothing supplied wrap a small piece of tape around centre cam and the push trigger wheel on .
but anyway my way should get it started..
5.Starting the car
Attempt to start car, in most cases the car will start .In some cases the distributor will have to be turned a few degrees in each direction until car starts and best idle can be achieved. Then the engine can be timed with a strobe.
PLEASE NOTE: It is not possible to accurately set timing statically, a strobe lamp must be used.
John
http://www.accuspark.co.uk/fitting_guide.html
maybe they shouldn't call it a trigger ring??
10. Push the supplied trigger ring down onto the centre cam , this should be a snug fit , if loose some kits are supplied with a packing piece place this on first then push the trigger on .If nothing supplied wrap a small piece of tape around centre cam and the push trigger wheel on .
but anyway my way should get it started..
5.Starting the car
Attempt to start car, in most cases the car will start .In some cases the distributor will have to be turned a few degrees in each direction until car starts and best idle can be achieved. Then the engine can be timed with a strobe.
PLEASE NOTE: It is not possible to accurately set timing statically, a strobe lamp must be used.
John
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john.p.clegg - Coveted Fifth Gear
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"Hall effect triggering needs the engine to be cranking to generate a spark."
I still have my doubts about this , surely any change of magnetic field passing the hall-effect would trigger the spark ??
ie, rotating the dissy...
John
Edit
Come on Vince,you can settle this,see if you can hear/see a spark when rotating the dissy...?
I still have my doubts about this , surely any change of magnetic field passing the hall-effect would trigger the spark ??
ie, rotating the dissy...
John
Edit
Come on Vince,you can settle this,see if you can hear/see a spark when rotating the dissy...?
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john.p.clegg - Coveted Fifth Gear
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Whether you can or can't static time them depends on the circuit used in the module, some modules you can and some you can't.
My basic Pertronix II unit (sold as different brand in the UK) can be static timed the same as points. You can even do it with the engine removed from the car by using a 12v power supply. Connect the ignition module to the 12v connection to +12v supply out, the power supply ground to the dizzy body and test lamp between power supply 12V and the modules ground connection (one that goes to the coil.).
Align engine to desired static timing, insert dizzy with Rotor facing the lead for 1. Power up the module and hopefully the test light will be on, then rotate until it goes off, tighten dizzy and you are done. I was able to get it within a couple of degrees using this method and then got the strobe light out once the engine was back in the car.
My basic Pertronix II unit (sold as different brand in the UK) can be static timed the same as points. You can even do it with the engine removed from the car by using a 12v power supply. Connect the ignition module to the 12v connection to +12v supply out, the power supply ground to the dizzy body and test lamp between power supply 12V and the modules ground connection (one that goes to the coil.).
Align engine to desired static timing, insert dizzy with Rotor facing the lead for 1. Power up the module and hopefully the test light will be on, then rotate until it goes off, tighten dizzy and you are done. I was able to get it within a couple of degrees using this method and then got the strobe light out once the engine was back in the car.
'73 +2 130/5 RHD, now on the road and very slowly rolling though a "restoration"
- mbell
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I just installed a Pertronix distibuter in my car-it cost very little more than the 'kit'.
I set the engine to tdc #1 and carefully noted the rotor position, then I installed the new distributer in exactly the same position, turned the key and away she went-I checked the timing with light and it was spot-on! Runs better too...
I set the engine to tdc #1 and carefully noted the rotor position, then I installed the new distributer in exactly the same position, turned the key and away she went-I checked the timing with light and it was spot-on! Runs better too...
'65 S2 4844
- Davidb
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Hall effect magnet sensors will trigger at zero speed just like points or lumenition light sensors will. The problem is with the electronics and whether they are designed stop operating below a certain speed to stop the electronics potentially overheating when the engine is stopped but the ignition left on.
Most of the modern "in distributor" units shut the electronics down at very low speed as they cannot handle the current going to the coil continuously and thus you cannot statically time.
cheers
Rohan
Most of the modern "in distributor" units shut the electronics down at very low speed as they cannot handle the current going to the coil continuously and thus you cannot statically time.
cheers
Rohan
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rgh0 - Coveted Fifth Gear
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Thanks very much for that clarification, Rohan. It just adds to our understanding of current systems.
Mechanical Engineer, happily retired!
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Galwaylotus - Coveted Fifth Gear
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Thanks to all for your responses.
Thanks John that what I have been looking for.
Exactly what I was concerned about.
I took an image of the dizzy at TDC before I pulled it out, so I'll stick it back as close as possible and strobe it when it's running.
john.p.clegg wrote:Now,now boys,lets not argue,Sorry Ron I know I posted after you but didn't see your post,the fitting instructions are here...
http://www.accuspark.co.uk/fitting_guide.html
PLEASE NOTE: It is not possible to accurately set timing statically, a strobe lamp must be used.
John
Thanks John that what I have been looking for.
rgh0 wrote: whether they are designed stop operating below a certain speed to stop the electronics potentially overheating when theignition is left on.
Most of the modern "in distributor" units shut the electronics down at very low speed as they cannot handle the current going to the coil continuously and thus you cannot statically time.
cheers
Rohan
Exactly what I was concerned about.
I took an image of the dizzy at TDC before I pulled it out, so I'll stick it back as close as possible and strobe it when it's running.
- vincereynard
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I am late to the party but I do the approx position bit and then with the plugs removed and the strobe attached time at cranking speed for initial set up. Sorry if I missed something but did not see this mentioned when i had a quick read through. They must all spark at cranking speed otherwise they would not work. Also with plugs out you get a rate of knots on the spinning.
I dropped upon this by chance but have aired it before.
Mike
I dropped upon this by chance but have aired it before.
Mike
Mike
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