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Fulvia alternator issue
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Topic: Fulvia alternator issue (Read 3714 times)
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RobD
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Senior Member
Posts: 180
Fulvia alternator issue
«
on:
06 June, 2015, 04:31:18 PM »
The generator lamp is showing red when the car is running suggesting something is amiss with alternator. The battery is fresh and in good nick. At tickover the alternator is putting out a healthy 14.2 volts [measured at the battery terminals] However , when I increase the tickover to 1500prm or above the voltage fluctuates wildly between 10 and 16.4 volts which suggests the voltage regulation on the alternator is faulty. Has anybody any experience of this? Is there a straightforward fix or am I looking at a replacement alternator?
Bob
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'75 Fulvia 1.3S
'68 works Laverda 125cc ISDT
KTM 640 Adventure
Yamaha TDM 900
Numerous Gas Gas trail bikes...
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lancianut666
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Posts: 1781
Slow but rough
Re: Fulvia alternator issue
«
Reply #1 on:
06 June, 2015, 04:37:33 PM »
fan belt slipping?
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Fulvia Coupe S2 Flavia Coupe 1967 1.8 Kugelfischer Prisma 1.6 carb Y10 Fila Y10 Touring Dedra 1.8 Dedra 2.0 Turbo Appia S1
RobD
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Posts: 180
Re: Fulvia alternator issue
«
Reply #2 on:
06 June, 2015, 05:34:59 PM »
First thing I checked...
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'75 Fulvia 1.3S
'68 works Laverda 125cc ISDT
KTM 640 Adventure
Yamaha TDM 900
Numerous Gas Gas trail bikes...
www.adventureride.co.uk
lancialulu
Press Officer
Permanent resident
Posts: 5052
Re: Fulvia alternator issue
«
Reply #3 on:
06 June, 2015, 06:03:57 PM »
Is it a ducillier or Bosch alternator? If a D alt check the connections on the remote regultor. You can open these up and check the contacts of the regulator. Alternatively you may have a diode gone in the alternator. A good auto electrical shop should be able to check the alternator (albeit they will never have seen one) and overhaul as neccessary. But first you could strip it and check the brushes as they may have worn to limit. Easy to strip and easy to match the brush at an auto electrician.
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Its not the winning but taking part! or is it taking apart?
Lancias:
1955 Aurelia B12
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia Sport 1600
1983 HPE VX
1988 Delta 1.6GTie
1998 Zeta 21. 12v
Richard Fridd
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Posts: 3487
Re: Fulvia alternator issue
«
Reply #4 on:
06 June, 2015, 06:18:30 PM »
I had a problem once, where the alternator would not charge over 4000rpm. Not useful at the hillclimb I was competing in. Different diodes for different rev ranges. I do have a surplus Fulvia alternator for sale in my spares ad.
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Richard Nevison Fridd Happy Lancia, Happy Life
RobD
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Posts: 180
Re: Fulvia alternator issue
«
Reply #5 on:
07 June, 2015, 04:53:07 PM »
Richard, I've sent you an email re the alternator, could be that I might need it in the near future!
Regards, bob
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You're all entitled to my opinion.
'75 Fulvia 1.3S
'68 works Laverda 125cc ISDT
KTM 640 Adventure
Yamaha TDM 900
Numerous Gas Gas trail bikes...
www.adventureride.co.uk
Richard Fridd
Permanent resident
Posts: 3487
Re: Fulvia alternator issue
«
Reply #6 on:
07 June, 2015, 07:34:45 PM »
No email received at present, but the used condition alternator is £60, if of interest. To put the cost into context, I have recently had my boat alternator repaired at a cost of £140.
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Richard Nevison Fridd Happy Lancia, Happy Life
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