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Classic/Antique Car Repair/65 chevy
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Question
I have a 65 chevy impala ss with a 327 and my alternator was bad so i put a new one and the bat. and the regulator and i redid all the wiring for the car by the book .and i start it starts fine but when i took the bat. cable off the car turns off what els could it be .
First off removing the battery cable with the engine running is not really a good idea. It can cause a spike in the voltage that can do damage to the diodes in the alternator.Second just because you replaced parts with new or rebuilt or used it does not mean that the parts are good and will work. Time to get a voltmeter out and check the wiring for voltage where it should be and to do an output test on the alternator. You say that you rewired, and if you let me know what alternator, model year and make, that you installed i can give you the test procedure.
Brad
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Answers by Expert:
Brad Sears
Expertise
All automotive including antique and collectible. However if the car has been modified I can only answer in general terms and maybe get you pointed in the right direction.
Experience
Automotive tech instructor.
Syndicated auto columnist 1970's though the early 1990's.
Syndicated auto radio talk show, Ask Brad About cars, CBS Radio 70's through 90's
TV Show "Last Chance Garage" 1980's PBS-TV syndicated.
Auto instructor for the following companies:
Fram
Autolyte
Holly
Carter
AMF
Ford Motor
University Of Conn
Blue Hills Technical School
Sugar River Technical Center
Grew up in a family garage in Needham Mass and turned wrenches from the age of 14.
Publications
Manchester Union Leader, Nashua Telegraph, Motor Service Magazine, Yankee Magazine, Popular Mechanics (Saturday Mechanic early 80's), Los Angeles Times, New York Times, and lots more.
Education/Credentials
More than I care to remember.
Basically Franklin Technical Institute in Boston, Northeastern University, Fitchburg State Teachers College, Tufts University, and a lot of factory schools along the way.
Awards and Honors
Moto Award winner. And much more.
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