Will this hurt the alternator? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 12-11-2002, 11:54 PM

My master cylinder leaked onto the case of my alternator and I sprayed brake cleaner on everything it leaked on and now I'm wondering if I might have wrecked the internal regulator? I have washed tehm before and it never hurt them but will the brake fluid and brake cleaner kill it?

Longhorn Man · 12-12-2002, 12:14 AM

Fire it up and let us know. I doubt it'll hurt it myself.

Hooter · 12-12-2002, 12:46 AM

Brakekleen shouldnt hurt the alternator. Brakekleen is almost made of the same stuff as electrical parts cleaner. Why does Brakekleen smell like a drycleaner?

**MJN** · 12-12-2002, 08:24 PM

When I idle in gear the amp guage goes way down and as soon as I hit the gas it just goes to the middle not a whole lot of charging. It doesn't look like the regulator is kicking in like it should. I'll have to try another one to see if I get the same results. Thanks guys

mikep · 12-12-2002, 08:57 PM

as long as its in the middle you are charging. If it were to stay on the negative side I'd be more concerned if I were you. Might be worth having it tested though. Did you get your regulator wet?

12-11-2002, 11:54 PM	#1
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	Will this hurt the alternator? My master cylinder leaked onto the case of my alternator and I sprayed brake cleaner on everything it leaked on and now I'm wondering if I might have wrecked the internal regulator? I have washed tehm before and it never hurt them but will the brake fluid and brake cleaner kill it? __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

12-12-2002, 12:46 AM	#3
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	Brakekleen shouldnt hurt the alternator. Brakekleen is almost made of the same stuff as electrical parts cleaner. Why does Brakekleen smell like a drycleaner? __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

12-12-2002, 08:24 PM	#4
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	When I idle in gear the amp guage goes way down and as soon as I hit the gas it just goes to the middle not a whole lot of charging. It doesn't look like the regulator is kicking in like it should. I'll have to try another one to see if I get the same results. Thanks guys __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

12-12-2002, 08:57 PM	#5
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	as long as its in the middle you are charging. If it were to stay on the negative side I'd be more concerned if I were you. Might be worth having it tested though. Did you get your regulator wet? __________________ No truck :-(

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12-12-2002, 12:14 AM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Fire it up and let us know. I doubt it'll hurt it myself.



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