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| Alternator noise https://slantsix.org/forum/viewtopic.php?t=13750 |
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| Author: | 65dart [ Tue Jul 19, 2005 7:44 pm ] |
| Post subject: | Alternator noise |
I just discoverd my alternator is dying. When the car is running the alternator makes a whiny sound and develops heat quickly. Within minutes of startup the alternator is too hot to hold. My questions are: How long do I have? Where exactly is the problem, bearings, brushes, etc.? And can someone point me to the link(s) surrounding the Nippondenso and any other units that are workable. Thank you |
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| Author: | Craig [ Tue Jul 19, 2005 7:56 pm ] |
| Post subject: | |
A shorted diode will make it whine and get VERY hot in a minute or two. It's repairable. You did not say which alternator you have now. |
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| Author: | 65dart [ Tue Jul 19, 2005 9:13 pm ] |
| Post subject: | |
Thank you Craig I'm not entirely sure what alternator I have but here's what I know. It is a reman factory replacement for the one that came on a '65 dart slant six without AC. Nothing fancy. What do I need to know in order to repair it. |
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| Author: | SlantSixDan [ Tue Jul 19, 2005 9:21 pm ] |
| Post subject: | |
Quote: It is a reman
Never buy "reman" parts!Quote: replacement for the one that came on a '65 dart slant six without AC.
The diodes in that alternator are pressed into the case. Check your local yellow pages to find a competent local auto electrical rebuilder who will build you a carefully-assembled alternator using quality components, so you don't wind up with a thrown-together hunk of low-quality junk like the "reman" unit that has failed you.
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| Author: | emsvitil [ Tue Jul 19, 2005 10:58 pm ] |
| Post subject: | |
Could also be bearings......... The rear bearing is easier to replace, but harder to find & The front bearing is easier to find, but harder to replace....... BTW, the front is a standard bearing size which you can get anywhere, so it's possible to get really cheap if you look around......... |
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| Author: | guest [ Wed Jul 20, 2005 8:49 am ] |
| Post subject: | alt parts |
J.C.Whitney sells bearing kits; it includes both front and rear and fits most US alternators and some idler pulleys. They used to sell diode + stator kits; I don't know if they still do. |
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| Author: | Craig [ Wed Jul 20, 2005 9:08 am ] |
| Post subject: | |
Quote: The rear bearing is easier to replace, but harder to find
That little needle bearing is readily available. It is used in many brand alternators and elsewhere in the world. A local rebuilder used to charge me $1 for that little bearing and not much more for the ball bearing on the other end. I used to buy both bearings and new brushes from him for $5 or so. I haven't been there lately to know if prices changed much. They buy those parts in bulk and they are cheap.& The front bearing is easier to find, but harder to replace... Replacing the ball bearing is a bit more challenging in the Chrysler alternators. You need a special puller to remove the pulley and a press to press it back on. Do NOT hammer the pulley back on , you WILL damage the shaft so do not even think about using a hammer. |
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| Author: | emsvitil [ Wed Jul 20, 2005 11:57 am ] |
| Post subject: | |
Quote: That little needle bearing is readily available. It is used in many brand alternators and elsewhere in the world.
Must be a geographical location thing............. Everyone had the ball bearing, and the rear needle bearing was at about the 7th place I checked...... (with the 4th place's computer saying they had it, but it was no where to be found.....) |
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| Author: | 65dart [ Fri Jul 22, 2005 6:38 am ] |
| Post subject: | |
Thank you, I'll work on collecting the pieces. Is there anything special I need to know if I try to do it myself. |
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| Author: | Nomad [ Mon Sep 17, 2012 10:57 am ] |
| Post subject: | |
I hope I'm not making a mistake digging up and old thread rather starting a new one… I lent my van to a friend last week. Came back with a noise that We first thought was caused by a loose belt. Changed the belts, but the alternator is sill complaining. Sounds more like the bearings are giving up. I guess I can bring it to a local repair shop for a rebuilt, but I also remember reading a post from Dan about a guy having a ton of NOS Chrysler parts for sale (unfortunately I can't find it again). What option would you guys recommend? Thanks. |
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| Author: | SlantSixDan [ Mon Sep 17, 2012 11:03 am ] |
| Post subject: | |
Send me a PM with particulars of your vehicle; I've almost certainly got a suitable new alternator for you and can mail from BC so no crossborder costs. |
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