Salmon Arm RV
I'm New Here
Hello RV owners.
I ran into a problem with my charging system recently when I accidently switched off my master battery switch instead of my ALT switch. Never done that before in 26 years of flying my RV6A. As a result, the ensuing voltage spike killed my regulator and my alternator then put out 16+volts. Shouldn't be a problem; just get another regulator from the auto parts store. Not quite, the regulator had no part number.
I built my RV in 2000, it has a 0320 Lycoming, 35amp Denso alternator and a firewall mounted 3 wire regulator ( +12v from switch, green to alternator field and a ground wire) from Vans. Getting a replacement regulator from an auto supply here did not prove easy. The Denso alternator from Vans is a Type "B" meaning one side of the field in the alternator is grounded and the field is looking for a +12V from the regulator. A type A alternator (dodge& chrysler) have +12v to field of the alternator and is looking for a ground from the regulator and will not work with this Denso Alternator. I tried the Ford regulator (VR166) that I read about in another thread and apparently has worked for some folks. However, the sensing on this regulator requires a "stator" connection on the alternator that does not exist on the 35amp Denso.
I asked Vans for the recommended replacement but they only said source from an auto parts store or buy their new all in one alternator with the new mounting hardware. As my alternator tested out ok I decided more searching for a replacement regulator was required. I finally found a very knowledgeable alternator parts guy who found me a Transpo MS-130A regulator. This regulator works well with this system. So if you have a late 1990's RV6 and have regulation problems this will fix it up. Salmon Arm RV
I ran into a problem with my charging system recently when I accidently switched off my master battery switch instead of my ALT switch. Never done that before in 26 years of flying my RV6A. As a result, the ensuing voltage spike killed my regulator and my alternator then put out 16+volts. Shouldn't be a problem; just get another regulator from the auto parts store. Not quite, the regulator had no part number.
I built my RV in 2000, it has a 0320 Lycoming, 35amp Denso alternator and a firewall mounted 3 wire regulator ( +12v from switch, green to alternator field and a ground wire) from Vans. Getting a replacement regulator from an auto supply here did not prove easy. The Denso alternator from Vans is a Type "B" meaning one side of the field in the alternator is grounded and the field is looking for a +12V from the regulator. A type A alternator (dodge& chrysler) have +12v to field of the alternator and is looking for a ground from the regulator and will not work with this Denso Alternator. I tried the Ford regulator (VR166) that I read about in another thread and apparently has worked for some folks. However, the sensing on this regulator requires a "stator" connection on the alternator that does not exist on the 35amp Denso.
I asked Vans for the recommended replacement but they only said source from an auto parts store or buy their new all in one alternator with the new mounting hardware. As my alternator tested out ok I decided more searching for a replacement regulator was required. I finally found a very knowledgeable alternator parts guy who found me a Transpo MS-130A regulator. This regulator works well with this system. So if you have a late 1990's RV6 and have regulation problems this will fix it up. Salmon Arm RV
