Lancia Motor Club Forum Banner
21 September, 2019, 11:58:40 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Search Calendar Register  
Pages: [1]   Go Down
  Print  
Author Topic: Fulvia alternator issue  (Read 799 times)
0 Members and 1 Guest are viewing this topic.
RobD
Lapsed
Senior Member
*****
Offline Offline

Posts: 180



« 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
Logged

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
lancianut666
Permanent resident
**
Offline Offline

Posts: 1008


Slow but rough


« Reply #1 on: 06 June, 2015, 04:37:33 PM »

fan belt slipping?
Logged

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
Lapsed
Senior Member
*****
Offline Offline

Posts: 180



« Reply #2 on: 06 June, 2015, 05:34:59 PM »

First thing I checked... Grin
Logged

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
lancialulu
Press Officer
Permanent resident
*****
Offline Offline

Posts: 3552



« 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.
Logged

Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia HFR
1972 1600 HF
1972 1600 Fulvia Sport
1978 Transformer HF3000 Strato's replica
1979 2500 Gamma Coupe
1988 Delta 1.6GTi.e.
Richard Fridd
Permanent resident
**
Offline Offline

Posts: 2846



« 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.
Logged

Richard Nevison Fridd
RobD
Lapsed
Senior Member
*****
Offline Offline

Posts: 180



« 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
Logged

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
**
Offline Offline

Posts: 2846



« 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.
Logged

Richard Nevison Fridd
Pages: [1]   Go Up
  Print  
 
Jump to:  

Contact the Forum Administrator

LMC Forum copyright © 2007 - 2018 Lancia Motor Club Ltd

Powered by SMF 1.1.20 | SMF © 2006-2011, Simple Machines