 Testing SIX alternator, easy way? |
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| Trekkor |
 Nov 18 2004, 10:29 PM
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#1
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I do things...  Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California  |
I can run my motor on the bench.
The charging harness is dangling out. What is the simplest way to verify that it is good before I install the motor? KT |
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| McMark |
Nov 19 2004, 01:06 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I have an oscilloscope we can use. (IMG:style_emoticons/default/biggrin.gif) I'm sure I can figure it out, but if anyone has tips, post 'em.
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| freezing14 |
Nov 19 2004, 09:40 AM
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#3
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freezing14 Group: Members Posts: 435 Joined: 21-June 04 From: brockville , Ontario, Canada Member No.: 2,233 |
hey guys around here in canada,, we have a place that is called canadian tire,, it is like pep boys or autozone and they offer a free service to verify any alternator,, or any alternator rebuilder will do it for 5$ and it is worth it because they check the rotor the outside winding and the regulator if you bring it
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| Root_Werks |
Nov 19 2004, 11:03 AM
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#4
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Village Idiot Group: Members Posts: 8,321 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest 
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Trekkor, take any 914 voltage reg and hook it up. It is only 3 wires. Conect the big wire up the battery and just read the volt with the engine running at the battery. The 3 wires on the alt are the same as on the volt reg. i.e. just match them up.
df d- d+ Those terms are on the alt and volt reg. So just hook them up and you can test! I think even the wire colors are the same from 914 to 911? |
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| krk |
Nov 19 2004, 01:13 PM
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#5
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Senior Member Group: Members Posts: 997 Joined: 27-December 02 From: San Jose Member No.: 22 |
(there's lots of good advice already -- but here's what I did last time (IMG:style_emoticons/default/laugh.gif))
I took my /6 alternator to a local alternator shop that's about 5 mins from the house. (It was dead, which is why I pulled it in the first place, but they checked it anyway) There are probably lots of places that will check it for you. kim. |
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| Trekkor |
Nov 21 2004, 01:41 PM
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#6
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
I thought there was a simple way to just stick a volt meter on one of the wires off the harness to get *something*?
I ran the motor this morning. (IMG:style_emoticons/default/wub.gif) Maybe it's time for a video clip. KT |
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| McMark |
Nov 21 2004, 02:37 PM
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#7
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
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| Trekkor |
Nov 21 2004, 09:20 PM
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#8
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
Mark came over with the scope (IMG:style_emoticons/default/clap56.gif)
Thanks, I owe you a burger. Looks like the alt is dead right now. (IMG:style_emoticons/default/mad.gif) Couldn't get any voltage readings. Possible diode failure. We even took it out and spun the unit. You could hear light tinklings. I'll take it to a shop for final check. KT |
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