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Alternator Brushes- what is the minimum length?
Hello,
my alternator light is (lightly) shining when the engine is running 2500+ revs in my 1975 911s. It is not the voltage regulator (already replaced it). According to the 101 projects the alternator itself might be the problem. I opened it and I could change the brushes, if this should be the root cause. Is my assumption correct? What is the minimum length of the brushes? Regards, wullie
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1975 911s Silver Anniversary Edition |
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03-26-2005, 12:04 PM
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Registered
Join Date: Aug 2002
Location: Galivants Ferry, SC
Posts: 10,550
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Brushes have to long enough to make contact with the slip ring under a slight "spring push" basis....
Wil
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Wil Ferch 85 Carrera ( gone, but not forgotten ) |
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03-26-2005, 12:24 PM
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Senior Member
Join Date: Jun 2000
Location: N. Phoenix AZ USA
Posts: 28,970
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If you have the brushes out, replace them! They are not that expensive and the most difficult part is getting to them.
JoeA
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2021 Subaru Legacy, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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03-26-2005, 02:01 PM
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1975 'H' Porsche 911s 2.7
