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[Spridgets] Subject: Re: How can you kill an alternator

To: spridgets@autox.team.net
Subject: [Spridgets] Subject: Re: How can you kill an alternator
From: Mark Haynes via Spridgets <spridgets@autox.team.net>
Date: Mon, 2 Feb 2015 20:08:42 GMT
Delivered-to: mharc@autox.team.net
Delivered-to: spridgets@autox.team.net
Full-name: "Mark Haynes" <haynes386@netzero.net>
There is definitely a high end on the bearings' RPM for longevity, That's why 
quite a few, if not most, racers put smaller pulleys on their water pumps and 
alternators-or use an 'Underdrive' pulley on the crank. If you run these two 
ancillaries at high RPMs for long periods of time, you get cavitation in the 
water pump, which leads to overheating, and bearings do burn out in the 

Mark Haynes
It only goes one way-Pay it Forward

Well there's your answer.   I had to go through three alternators from AutoZone 
before I 
got one that would last more than a year.   I think their "rebuilding" process 
is not much more than clean and polish.  :-) 

Sent from my keyboard

> On Feb 2, 2015, at 12:34 PM, Trevor Jessie <trevor.jessie@gmail.com> wrote:
> I'm just trying to rule out possibilities on how I'm killing so many 
> alternators.  
They fail slowly.  Gradually requiring more and more rpms before they start 
charging and 
eventually they quit charging regardless on rpms.  I'm on my fourth "rebuilt" 
Lucas unit from a major chain autoparts store.

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