Lotus Elan

Low alternator charge

PostPost by: billwill » Sun May 14, 2017 12:10 am

andyhay wrote:It was the white wire in this photo (not my car - photo from google search)
IMG_3278.JPG



That's the wire from the starter switch to operate the solenoid. That solenoid does not have the ballast coil extra contact.

Maybe you also slid the big brown wire to & fro on its contact and cleaned the connection without realising it. As prezoom said, since that is the main feed to & from the battery, dirty contacts there could make strange effects.
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PostPost by: andyhay » Sun May 14, 2017 3:33 am

I gave all the wires a wiggle and a push. So could the brown wire have caused the low altenator charge symptoms ?
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PostPost by: rgh0 » Sun May 14, 2017 4:42 am

Yes
If you had a high resistance join from the alternator brown wire to the main battery cable you could get the symptoms you had. You may want to remove the connections on the top of the solenoid and clean and reinstall them ensuring they are all tight.

cheers
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PostPost by: andyhay » Sun May 14, 2017 10:00 am

Will do

Thanks again to everyone for all the help.

Andy
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PostPost by: billwill » Sun May 14, 2017 3:14 pm

rgh0 wrote:Yes
If you had a high resistance join from the alternator brown wire to the main battery cable you could get the symptoms you had. You may want to remove the connections on the top of the solenoid and clean and reinstall them ensuring they are all tight.

cheers
Rohan


CAREFULLY..!!

Disconnect the battery first because that big fat black leads goes straight to the battery terminal.
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PostPost by: prezoom » Sun May 14, 2017 4:03 pm

Be sure to check the connection at the alternator as well.
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PostPost by: Grizzly » Fri May 19, 2017 7:10 pm

I know this may sound a little odd but have a look what size Bulb you have in your Ignition tell tail light. I was having all sorts of problems with my Alt doing strange things and it turned out it didn't like the 2.2w bulb, fitted a 5w and it works as intended now (14v at 1000rpm idle and 14.4v at anything over 1200 rpm)
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