Alternator Getting Warm
Alternator Getting Warm
Author
Discussion

richies2.0gl

Original Poster:

48 posts

214 months

Tuesday 13th April 2010
quotequote all
I have just fitted a 2.0 Dohc engine into my cortina and started to do the wiring today. I have used the Sierra alternator.

With the ignition switched off, the alternator is getting warm. It is connected correctly. The Cortina has 2 live feeds from the top of the alternator and looking at the wiring diagram, it doesnt matter which terminal of the two they go onto. The third terminal goes to the charging light on the dash and to the auto choke. My feeling is that the alternator is at fault but any more advice would be greatfully received.

Thank you, Richard

P.S I have not had the car running yet as I have not yet installed the Ignition Control Module.

finlo

4,304 posts

227 months

Wednesday 14th April 2010
quotequote all
Is the warning light glowing with the ignition swithed off?

If so the diode pack will be toast, warm alt=flat battery

PS it will still appear to work ok while running HTH.

richies2.0gl

Original Poster:

48 posts

214 months

Wednesday 14th April 2010
quotequote all
Its sorted now. The two red wires are supposed to be positioned on one of the three terminals. The Haynes manual wiring diagram was incorrect. I had a main feed wire from the alternator to the battery connected to the 12V output post from the alternator which powered the auto choke. Once connected correctly, the alternator now functions as it should and hasnt been damaged (had car running today).

Mental note- The Mr Haynes is not always right!!!

Jerkins

104 posts

220 months

Thursday 15th April 2010
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Not the first time - I upgraded my crossflow engine with a Valencia electronic distributor, and only got it running by ignoring the Haynes manual and getting info off the internet!