Arnie
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| posted on 23/7/11 at 01:36 PM |
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Engine starting problem
Looking for help. Currently have an MK Indy running a 2ltr pinto engine. Normally on a megajolt with bike carbs.
The problem is I cannot get it to start properly using either the megajolt or original ignition system. When I turn it over on the starter motor it
makes no attempt to start just turns over. However occasionally when I release the key the engine will start and run okay. Once running the engine
operates normally. I noticed when I was trying to see what the problem was that I did not get a spark until I released the key.
Can anyone offer any suggestions as to what the problem might be. Any help would be appreciated. Thanks
Regards,
Arnie.
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coozer
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| posted on 23/7/11 at 01:38 PM |
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Is the choke mechanism connected up on the carbs? Full 12v when cranking??
1972 V8 Jago
1980 Z750
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big-vee-twin
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| posted on 23/7/11 at 01:49 PM |
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Sounds like when the starter motor is running there's not enough power left for the spark,does the battery voltage hold up ok.
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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TimEllershaw
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| posted on 23/7/11 at 02:04 PM |
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Is the ECU wired up so that it is still powered while cranking ?
http://www.teenagecancertrust.org/
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britishtrident
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| posted on 23/7/11 at 02:30 PM |
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quote:
Originally posted by TimEllershaw
Is the ECU wired up so that it is still powered while cranking ?
Exactly my first reaction
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scudderfish
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| posted on 23/7/11 at 03:44 PM |
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quote:
Originally posted by britishtrident
quote:
Originally posted by TimEllershaw
Is the ECU wired up so that it is still powered while cranking ?
Exactly my first reaction
Ditto. Make sure the MJ is not connected to the ACC output on the key switch.
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Arnie
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| posted on 23/7/11 at 10:24 PM |
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Thanks for the suggestions will give them a go and see how I get on. Once again thanks for all your help.
Regards,
Arnie.
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keithometune
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| posted on 23/7/11 at 10:46 PM |
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do you still have it wired for a ballast resistor ? symptons sound like similar to when the ballast would go open circuit. try a permmanent + to the
coil and see what happens
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Arnie
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| posted on 3/8/11 at 08:27 PM |
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Success
Eventually traced fault to loss of +12ve supply to Megajolt when turning key to Starter position. Faulty Ignition switch. However what complicated
the issue was that the earth wire to the Megajolt was broken inside the insulation at the battery terminal. Only noticed when I took it off to charge
battery. I must have damaged at some point during original fault location.
Once again thanks for all your help.
Now to enjoy what is left of the summer.
Regards,
Arnie
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