Alternators | 356 Speedster, 550 Spyder, Replica, Automotive Community

WOLFGANG'89 CMC FWB, FL Supporting Member

I have 2 T1 Alternators for my build. Both have external regulators. My car was wired for generator with regulator so need to adjust some wires. One instlled is a Motorola with a Motorola external regulator. Regulator sat so long that the insulating stuff in the tim box turned to sticky goo with sandy looking stuff in it plus I don't have the special 3 prong plug for the alt. I removed the goo and filled it with fiberglass resin (not sure if that was good idea or not. The other one is a Bosch rebuild German unit - I have the Bosch regulator with the 3 prong plug.

Question is - are the regulators interchangeable between Bosch and Motorola?

Guess I'll swap the Bosch one in - just would rather spent the 3 hours doing something else on it. I do have a couple generators with regulators --- but prefer to go with Alt. Didn't know enough many years ago to look for a simpler internally regulated one.

5/6/1112:52 PM

Original Post

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WOLFGANG'89 CMC FWB, FL Supporting Member

I have 2 T1 Alternators for my build. Both have external regulators. My car was wired for generator with regulator so need to adjust some wires. One instlled is a Motorola with a Motorola external regulator. Regulator sat so long that the insulating stuff in the tim box turned to sticky goo with sandy looking stuff in it plus I don't have the special 3 prong plug for the alt. I removed the goo and filled it with fiberglass resin (not sure if that was good idea or not. The other one is a Bosch rebuild German unit - I have the Bosch regulator with the 3 prong plug.

Question is - are the regulators interchangeable between Bosch and Motorola?

Guess I'll swap the Bosch one in - just would rather spent the 3 hours doing something else on it. I do have a couple generators with regulators --- but prefer to go with Alt. Didn't know enough many years ago to look for a simpler internally regulated one.

Alan MerklinDrclock - Elkins, West Virginia Supporting Member

Do yourself a favor and buy a single wire alt for $110.00....

5/6/111:20 PM

LeonChupp

OR......buy an $80.00 rebuilt internaly regulated unit from AutoZone / Pep Boys, etc...Use your worst alternator as a core....

5/7/114:22 AM

Former Member

I bought a Bosch rebuilt unit a few months ago for $128.00 shipped at Auto Parts Warehouse.

10/11/1112:16 PM

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