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Jono
Firing on two.
Joined: December 8th, 2008, 5:58 pm
Posts: 1404
Location: Near Matlock, Derbyshire
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 Prob. with ignition/alternator/fuel gauge/indicator circuit Hi there. Can anyone help? My Dad's doing an engine change on a local 2cv (late model, two fuse boxes), and it turns over but won't start. We've traced it to a problem with the main ignition circuit (blue wire on the top fuse box) - there's no power there at all to this fuse. I can only assume that there's a break in the loom between the ignition switch and the fuse box, but before we remove all the loom tape/speedo, can anybody suggest anything else? We've cleaned all contacts and put a paperclip across the wires on the back of the igntion switch, to elimiate the switch itself.
It would appear that the "dead" wire is the one on the passenger side of the car.
Thanks
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| April 14th, 2013, 11:23 am |
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toomany2cvs
Firing on two.
Joined: December 26th, 2008, 9:40 pm
Posts: 3332
Location: Surrounded by 2cvs...
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ What was the score before the engine change? I find it hard to see how an engine swap can suddenly cause a problem like that inside the car, way away from where you were working. And coincidence seems unlikely.
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Zookeeper of a miscellany of motorised silliness - from 0.75bhp to 9ft tall - now living life on the road in an old VW.
http://WhereverTheRoadGoes.com
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| April 14th, 2013, 11:29 am |
 
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Sean
Firing on two.
Joined: April 22nd, 2009, 11:06 pm
Posts: 3684
Location: Ecosse
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ Jono wrote: Hi there. Can anyone help? My Dad's doing an engine change on a local 2cv (late model, two fuse boxes), and it turns over but won't start. We've traced it to a problem with the main ignition circuit (blue wire on the top fuse box)
Thanks that's not the problem that's one of the the consequences Is there 12is volts to the starter switch and back out? - the coil live splices off before the fuse so it should run even if the fuse is out. black is supply 12 v red is starter solenoid and Mauve is the rest of the car including ignition you did put the terminals back on the corect pins? did you do up all the blue wires on alternator starter and battery? electrical stuff just needs carefull and methodical investigation - start at the fuse and work back down the loom looking for live.
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Kissing the Lash
"Any advice of a technical nature is given on the understanding that I've actually done this shit, not just read about it in D*lly club mag some time ago.
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| April 14th, 2013, 12:12 pm |
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ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ Jono,
is 12v reaching the coil?
If not, a quick way to bypass the original wiring is to run a wire direct from the battery to the coil, which would check if there's a problem with whichever ignition system is fitted.
If that works, whatever the problem is with the loom could be sorted at leisure...
ken
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| April 14th, 2013, 1:26 pm |
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Jono
Firing on two.
Joined: December 8th, 2008, 5:58 pm
Posts: 1404
Location: Near Matlock, Derbyshire
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ toomany2cvs wrote: What was the score before the engine change? It worked, but the engine didn't as the owner had been driving it around without any oil in! Thanks for the answers, guys. I'll pass them onto my Dad.
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| April 14th, 2013, 6:10 pm |
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Russell
Firing on two.
Joined: November 29th, 2008, 10:05 pm
Posts: 9259
Location: West Sussex, U.K.
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ Just a wild thought, the earth from the battery is on properly isn't it?
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samfieldhouse wrote: What I like about I2F is that there is no pretence of democracy.
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| April 14th, 2013, 6:27 pm |
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bobh
Firing on two.
Joined: March 26th, 2010, 8:41 pm
Posts: 234
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ Is there a set of points in the 'new' engine. Is the coil connected the right way round?
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| April 14th, 2013, 6:53 pm |
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ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ Bob, 2CV (and other double-ended) coils work just as well either way round. In fact, reversing the polarity of the low tension connections will equalise erosion of the plug electrodes resulting from the HT spark(s).  ken bobh wrote: Is there a set of points in the 'new' engine.
Is the coil connected the right way round?
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| April 14th, 2013, 9:00 pm |
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Jonathan
Firing on two.
Joined: January 1st, 2009, 7:37 pm
Posts: 4708
Location: Disunited Kingdom
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ ken wrote: Bob, 2CV (and other double-ended) coils work just as well either way round. In fact, reversing the polarity of the neutron flow will equalise erosion of the plug electrodes resulting from the HT spark(s). ken Sorry Ken 
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1988 built (1989 F-registered) Citroën 2CV-Six
2013 (63-Plate) VW Golf SE 1.4TSI BMT DSG7
1932 Morris Minor Open Two-Seater (The £100 car).
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| April 15th, 2013, 12:24 am |
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ken
Agony Aunt - You have a car problem? Speak to Ken
Joined: March 6th, 2009, 1:40 am
Posts: 3675
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Re: Prob. with ignition/alternator/fuel gauge/indicator circ
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| April 15th, 2013, 1:15 am |
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