 Alternator - to rebuild or not to rebuild |
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| iankarr |
 Dec 18 2015, 07:53 AM
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#1
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The wrencher formerly known as Cuddy_K  Group: Members Posts: 2,480 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region 
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Hi Guys,
While my motor is out and getting cleaned up, I'm wondering if I should have the alternator rebuilt. Power was fine before the teardown, but given how much of a PITA it is to change the alternator with the motor in the car, do you think it's a good "might as well" to rebuild it now? Buy a new one? |
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| reharvey |
Dec 18 2015, 07:57 AM
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Senior Member Group: Members Posts: 573 Joined: 16-July 08 From: N. E. Ohio Member No.: 9,308 Region Association: North East States |
Just buy a rebuilt one. There are lots of them around at whatever price you want to pay.
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| DavidSweden |
Dec 18 2015, 10:07 AM
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#3
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Member Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia |
QUOTE(cuddyk @ Dec 18 2015, 05:53 AM)  Hi Guys, While my motor is out and getting cleaned up, I'm wondering if I should have the alternator rebuilt. Power was fine before the teardown, but given how much of a PITA it is to change the alternator with the motor in the car, do you think it's a good "might as well" to rebuild it now? Buy a new one? I rebuilt mine it was not difficult. It was mainly to do it myself and not so much to save money, it only cost about $25 for the bearings and new brushes. You may also need to turn down any ridges on the commutator, a lathe is required. You have probably seen this but if you havnt then it may be helpful. http://www.ephotomotion.com/914engine/alt1.html If you do rebuild yourself then I reccomend that you take it and get it tested before installing. |
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| larryM |
 Dec 19 2015, 10:10 PM
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#4
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emoze Group: Members Posts: 891 Joined: 1-January 03 From: mid- California Member No.: 65 Region Association: Northern California
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QUOTE(reharvey @ Dec 18 2015, 05:57 AM) Just buy a rebuilt one. There are lots of them around at whatever price you want to pay. |
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| TheCabinetmaker |
Dec 20 2015, 09:15 AM
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#5
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I drive my car everyday Group: Members Posts: 8,301 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
914 alternators are very robust. I've only seen three fail in the last 40 years. Use your old one, and get a new cooling boot. About 12 bucks at Bughaus.
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| porschetub |
Dec 20 2015, 06:24 PM
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#6
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Advanced Member Group: Members Posts: 4,703 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(The Cabinetmaker @ Dec 21 2015, 04:15 AM) 914 alternators are very robust. I've only seen three fail in the last 40 years. Use your old one, and get a new cooling boot. About 12 bucks at Bughaus. Very true ,bosch altenators are very well made,only replaced bearings in one of mine cause they had gone dry,spun fine but wanted it to last. DIY is very easy and while you are there you can polish the commutator and give the whole thing a good clean with brake/ electrical cleaner. IMO on a four or six its not an easy job with engine in best to do it @ point of overhaul or engine out. |
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