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Oetker
YaBB God
Posts: 1097
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« Reply #4 on: September 15, 2010, 11:19:05 pm » |
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Also the connector at the right side of the enginebay fooled me once. The same wire red/black from the connector that suffolkpete described goes there, and had a bad connection. You can easily check if the or alternator is at fault. Take the connector on the alternator out . Get a bulb 12 Volt 3.5 Watt (NB: or something near that) Connect it from B+ (the thick red wire) to L on the alternator. Measure Voltage on the battery at 1500-2000 RPM. It has to be around 13.4 Volt. If it is much lower probably the alternator is at fault. The bulb goes out when the engine is running. In fact you replace the circuit that goes to the front with this bulb.
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« Last Edit: September 15, 2010, 11:26:23 pm by Oetker »
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I feel like Jonah, only my fish looks different. Murena 2.2 Red 1982. Murena 1.6 black on places.
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roy4matra
YaBB God
Posts: 1199
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« Reply #7 on: September 20, 2010, 10:42:50 am » |
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I havent had the time to sort out the problem, but I have done a quick check. The charge warning light is not working when turning the ignition.
There is the first problem since the alternator energises through the warning light and resistor. So if it is not coming on, either there is an open circuit, or a fault in the regulator. Reving to 2000-3000 rpm has no effect on the voltage either. And I have found two loose wires close to the alternator in the engine bay. One red and one grey one I think.
If you have a grey one not connected that may be the problem. Grey is an ignition wire, and unusually the 2.2 Murena alternator needs an ignition feed as well as the normal positive, negative, and warning light wiring. I'm assuming you have the standard Paris-Rhone A13N10 alternator. As with all electrics, first have the correct wiring diagram, understand the system, and you can then check the connections and system. Note: even the official wiring diagram has mistakes or things left out. That was why I made mine - to include everything and be accurate. Roy
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madeinfrance
Newbie
Posts: 19
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« Reply #9 on: September 21, 2010, 11:36:38 pm » |
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If you have a grey one not connected that may be the problem. Grey is an ignition wire, and unusually the 2.2 Murena alternator needs an ignition feed as well as the normal positive, negative, and warning light wiring. I'm assuming you have the standard Paris-Rhone A13N10 alternator.
I definitly got one grey loose wire, and one red. Both is thin and seen in the right of the image. Also the alternator is probably missing some wires? Should any be mounted to the bottom connectors? On the picture below the connectors are at the top.
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« Last Edit: September 21, 2010, 11:39:01 pm by madeinfrance »
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Murena 2.2 1983' Stolen
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