Amazon: - Voltage regulator help needed!

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Amazon: Voltage regulator help needed!

PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars

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Mar 30th, 2013, 18:14	#1
Faust Master Member Last Online: Jun 15th, 2024 21:52 Join Date: Sep 2008 Location: Nottingham	Voltage regulator help needed! I've recently replaced my alternator with a 55 amp unit from Brookhouse. I've also replaced the voltage regulator (3 pin type). The new set up is putting approx 19.2 volts into my battery which is obviously far too much - with the old VR I'm getting a reading of 13.1 volts at the battery at approx 2000 rpm. If I by pass the VR and take a reading at the back of the alt and the negative battery terminal, I get a reading of 14.3 volts which is spot on so the alternator doesn't appear to be faulty. Simon has sent me 2 new voltage regulators and I'm getting the same problem with both. The connections at the alt. are correct and all earths & connections are nice and clean. Car is a 1970 133 with the factory alternator set up. Does anyone have any ideas?

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