Charging question on a 914-6 |
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Charging question on a 914-6 |
db9146 |
Jul 28 2018, 08:11 PM
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#1
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Senior Member Group: Members Posts: 953 Joined: 21-December 04 From: Atlanta, GA Member No.: 3,315 Region Association: None |
Well, I have made a temporary conversion of my -6, inserting a rebuilt 2.7S with ITBs, MS3, and distributorless ignition in place of the tired 2.0L. Before putting the engine in, I decided it best to install a new alternator along with a new engine/alternator wiring harness.
The alternator is for a 1965-1977 911 2.0-2.7 that uses an external VR. and here's the new wiring including a new ground strap to the engine case. The large red cable goes to the starter, the smaller red wire is D+, the black is DF, and brown is D-. I thought the problem might be the battery because of its age but when I checked the output of the charging system at the battery, there was none. I replaced some of the dash lights with LEDs but made sure not to replace the GEN warning light, which is not coming on despite the alternator not charging. Should I next pull the D+, DF, and D- plug and check for alternator output across DF and D+ momentarily? If there is output, what then? If not, what's next? |
db9146 |
Aug 15 2018, 09:51 AM
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#2
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Senior Member Group: Members Posts: 953 Joined: 21-December 04 From: Atlanta, GA Member No.: 3,315 Region Association: None |
Spoke, I just updated my previous post. I agree with your comments above but my issue is that I never see a charging voltage above 13V now. I think when I saw those measurements, they were battery voltage of a brand new battery and now that I have run it some, I'm not seeing 13V. I'm also leaving it off the trickle charger in between occasional evening drives to check the battery/voltage in an "unsupported" environment.
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