robb15033
Well-Known Member
In hopes that i can help another brother with an alternator replacement, my thoughts after installing:
The alternator on the Cobra started to produce less charging volts when heat soaked. I purchased a 200amp unit and 4 gauge wire for a replacement.
-I did some researching prior to replacing it. Read somewhere that some 4.6L engines have alternator failures that include grounding issues that can damage batteries and even corrode heater cores due to alternators not grounded correctly. Anyone share opinion that 4.6L engine alternators may fail prematurely? Issues with PA Performance units not performing?
-Observations: My new alternator is functioning perfect. Car voltage regulator is controlling unit with gauge to right of "R". After installation & reconnecting battery, it took a day of stop & go driving to get the gauge needle steady and not dipping slightly when load was increased. It's consistent now.
-I installed a DB Electrical 200amp unit. I considered PA Performance, Mechman, and DB. Looked at replaceable/rebuilding parts available.
-Before installing new unit, I rubberized the back & bottom of alternator where it would make contact with engine, framing, or brackets. I applied a layer of grease on all bolts and areas of alternator that made contact. Ran 4 gauge wire with inline 150 amp fuse from top of alternator post to fuse box terminal. That's it other than plugging in top connector.
So far, so good!
DB ELECTRICAL LINK: http://www.dbelectrical.com/p-9802-alternator-high-output-200-amp-46l-mustang-2001-dohc-cobra.aspx
The alternator on the Cobra started to produce less charging volts when heat soaked. I purchased a 200amp unit and 4 gauge wire for a replacement.
-I did some researching prior to replacing it. Read somewhere that some 4.6L engines have alternator failures that include grounding issues that can damage batteries and even corrode heater cores due to alternators not grounded correctly. Anyone share opinion that 4.6L engine alternators may fail prematurely? Issues with PA Performance units not performing?
-Observations: My new alternator is functioning perfect. Car voltage regulator is controlling unit with gauge to right of "R". After installation & reconnecting battery, it took a day of stop & go driving to get the gauge needle steady and not dipping slightly when load was increased. It's consistent now.
-I installed a DB Electrical 200amp unit. I considered PA Performance, Mechman, and DB. Looked at replaceable/rebuilding parts available.
-Before installing new unit, I rubberized the back & bottom of alternator where it would make contact with engine, framing, or brackets. I applied a layer of grease on all bolts and areas of alternator that made contact. Ran 4 gauge wire with inline 150 amp fuse from top of alternator post to fuse box terminal. That's it other than plugging in top connector.
So far, so good!
DB ELECTRICAL LINK: http://www.dbelectrical.com/p-9802-alternator-high-output-200-amp-46l-mustang-2001-dohc-cobra.aspx