Off Road Toad Posted April 20, 2010 Share Posted April 20, 2010 Odd and doing my head in Problem is as follows : Went deep water wading with HFH (So his fault ) Battery went flat overnight Charged battery, it started but Alternator light stays on even when engine switched off and keys are removed ?? WTF ? Key in, and ignition on and running = Light goes out and all seems OK and seems to be charging, but somethings wrong when keys removed as light stays on and battery starts to flatten again HELP - Ideas please ?? Nige Quote Link to comment Share on other sites More sharing options...
Les Brock Posted April 20, 2010 Share Posted April 20, 2010 Alternator fu-barred ! Discharging through it ! Quote Link to comment Share on other sites More sharing options...
fozsug Posted April 20, 2010 Share Posted April 20, 2010 Agreed, definately alternator discharging Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted April 20, 2010 Share Posted April 20, 2010 Quote Link to comment Share on other sites More sharing options...
Off Road Toad Posted April 20, 2010 Author Share Posted April 20, 2010 It seems then that Megasquirt will run a v8 quite happily underwater, but not an alternator Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 20, 2010 Share Posted April 20, 2010 Try cleaning the sh*t out of it (especially the brush pack) and see if it starts behaving. Quote Link to comment Share on other sites More sharing options...
Highway_Star Posted April 20, 2010 Share Posted April 20, 2010 As said above, at least one diode in the rectifier pack has failed short. You can replace the pack, about £30 from Lucas service + your time with tools and a big soldering iron. Might as well treat the alternator to a clean and a set of brushes while you're at it. Or of course take it someplace professional and have it done, or just fit a new un. Quote Link to comment Share on other sites More sharing options...
Off Road Toad Posted April 20, 2010 Author Share Posted April 20, 2010 New one ordered, cheaper in the long run with our trade accounts It may explain some other bizzare electrical anomolies too! Quote Link to comment Share on other sites More sharing options...
heath robinson Posted April 20, 2010 Share Posted April 20, 2010 Was it really cheaper? The battery centre in Bridgwater fixed my diodes and brushes for about £45. Quote Link to comment Share on other sites More sharing options...
Off Road Toad Posted April 21, 2010 Author Share Posted April 21, 2010 In the long run yes, as i'm taking the 90" away this weekend with my wife for our 10th wedding anniversary and if it's not working properly then she'll kill me! not really time to get this one repaired. New one trade was £69.00. I may get the busted one repaired as a spare. Steve Quote Link to comment Share on other sites More sharing options...
heath robinson Posted April 22, 2010 Share Posted April 22, 2010 The value of a new alternator? £69 The value of not being hung off a lamp post from the tender bits by the misses? Priceless... Quote Link to comment Share on other sites More sharing options...
simonr Posted April 23, 2010 Share Posted April 23, 2010 away this weekend with my wife for our 10th wedding anniversary No way you're old enough to have been married 10 years! Si Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.