The alternator replacement thread, Fixed! |
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The alternator replacement thread, Fixed! |
VaccaRabite |
Aug 12 2018, 07:07 PM
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#1
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En Garde! Group: Admin Posts: 13,465 Joined: 15-December 03 From: Dallastown, PA Member No.: 1,435 Region Association: MidAtlantic Region |
Waiting on the side of the road for a flatbed to take me home.
Engine ran great. Charging system not so much. Driving along. Lights started going dim. Car started bucking. Only 5 miles to home but it wasn’t going to make it, and no shoulders to pull over safe on the little farm roads. So I pulled into a spot I knew of and shut it down and parked it and now I wait. McMark had said earlier he wasn’t sure about the charging system. But the alt light was not on and no issues before now. So. What’s the alternator I need to buy? Maybe a new VR as well? I guess I should test the battery and make sure it’s okay too. Zach |
Spoke |
Aug 18 2018, 08:48 PM
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#2
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Jerry Group: Members Posts: 6,991 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
It sounds ok so far. How many times did you rev the engine? That's when the alternator and VR will reach peak efficiency. As soon as you start the engine the battery has been weaken by the load of the start and the alternator+VR usually are running at low RPM during the start. A measurement at 2-3K after a minute or 2 warm up will let you know how the alternator+VR are working.
12.8-13.1 is good just after the start with low revs. Should increase to 13.25-14V when revving the engine. |
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