ploughman Posted July 22, 2018 Share Posted July 22, 2018 Just changed the Alternator belt on my S3 CL Petrol 2.25 Since fitting it the ignition light does not light up. Other lights such as indicator and fuel gauge ok Vehicle starts ok though, but no idea if the battery is just coping at the moment. No meters. Is this due to :- Disturbing the earth connection? Slacked off all 3 mounting bolts and retightened them. Damaging the circuitry? Did not touch any wiring that I know of. Alternator fault? Something else? Quote Link to comment Share on other sites More sharing options...
0 wally dugan Posted July 22, 2018 Share Posted July 22, 2018 (edited) check the connecter block for a bad connection or broken wire thin one is favorite first check bulb Quote Edited July 22, 2018 by wally dugan Quote Link to comment Share on other sites More sharing options...
0 LarryH57 Posted January 3, 2019 Share Posted January 3, 2019 Did you find the cause, for us Landy owners? Quote Link to comment Share on other sites More sharing options...
0 ruxy Posted January 3, 2019 Share Posted January 3, 2019 (edited) The Series 3 CL , is a civvy BASIC with selections from the Optional Parts book , one is a ammeter. I don't know why it was picked because the S3 Lightweight 12 volt model does without. It is a old thread I did not see ,, I would expect ploughman is not expecting what he is getting. His new belt / tension is probably powering up the Lucas 16ACR sooner. As such it is not a 'Ignition warning lamp' - it is a "no-charge warning lamp" , subtle difference , the 16ACR is a 'machine sensed'. The RED jewel lamp will / should only just 'glow' when the Ignition is switched on (be aware in strong sunlight) , and engine stopped or running very slowly as soon as the engine drives the alternator , then the aux. diodes produce a supply to the rotor (excitation) - then the lamp is cancelled / extinguished - since there is then no voltage difference across it . IIRC cancelled is between 500rpm & 800 rpm (tick-over speed depending on age / type of 2.1/4 pet. specifically. The harness multi-plug is a PITA , it has a wire spring clip , can fly off on a bump, comes off the frame easily and lost - so many are just pushed in. ploughman may have knocked it - I would push & re-fit a couple of times to clean the blades for good contact. I would only fit a ACR for rivet counting (bigger than a 16) , in preference I normally fit a Prestolite alternative ,, Edited January 3, 2019 by ruxy spelin Quote Link to comment Share on other sites More sharing options...
0 ploughman Posted January 3, 2019 Author Share Posted January 3, 2019 The fault was a dead Alternator, so a new one had to be fitted. Quote Link to comment Share on other sites More sharing options...
Question
ploughman
Just changed the Alternator belt on my S3 CL Petrol 2.25
Since fitting it the ignition light does not light up. Other lights such as indicator and fuel gauge ok
Vehicle starts ok though, but no idea if the battery is just coping at the moment. No meters.
Is this due to :-
Disturbing the earth connection? Slacked off all 3 mounting bolts and retightened them.
Damaging the circuitry? Did not touch any wiring that I know of.
Alternator fault?
Something else?
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