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1979 280z fusible links


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#1
slaptimmay

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im having troubles keeping charge to my 280. i had the battery and alternator checked. the starter also. whats happening is i have to jump the car. once its started and im just sitting there idleing its fine, but once i drive for a while my battery starts to die as if the alternator isnt helping it. i checked one of the fusible links and it was dry rotted so im guessing the others are too and they all need to be replaced. would that make sence for whats going on? if im right... where can i get the links. or is there a amp fuse i can use and just get rid of the wires? my e-mail is tim_7_2000@yahoo.com any and all info is helpful! thanks
79 280zX with full eibach suspention and independent rear. msd ignition. headers to a cherry bomb....lowered 2 inches. right now black primer. already have pearl black paint with 2 black leather racing seats. IF ANYONE HAS FRONT FENDERS FOR A 1979 280ZX OR FRONT AIR DAM PLEASE E-MAIL ME @ TIM_7_2000@YAHOO.COM THANKS :bunny:

#2
sblake01

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First of all, if you have a 79, it's a 280ZX not a 280Z. I can't tell you much about the fusible links on it because I don't know much about the electronics in a ZX. Your scenario makes sense, however, as one of the links on a 280Z is directly between the alternator and the battery and there probably would be some similarity to the ZX system.
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#3
sideshowbob

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This is from a 77. Despite the reputation the japanese have today for electronics, these cars had crap wiring.
Check the wires running from the alternator all the way to your fusebox. Odds are you'll find something like the pic below. Once the tape came off, the splice crumbled into dust. Oddly enough, everything still worked (most of the time).

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#4
SteveJ

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Contact PrOxLaMuS©. He's a user on this site. He converted the fusible links in his Z to the Maxifuse block.

#5
sideshowbob

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So have I. I used a 10$ Olds 88 underhood box cut in half :) Nice silver contacts, btw.

#6
randy 80ZX

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No the fusible links have nothing to do with the car losing power they only act as a fuse would and open up when there is a short in electrical system.. Have your alternator checked again,sometimes alternators check o.k. but its a false reading...also clean all wires and connectors on alernator and ground wire.....Randy

#7
SteveJ

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I second what Randy said. A friend had a problem with maintaining a charge. The parts place tested the alternator and said it was fine (internally regulated). I didn't buy the diagnosis and convinced the friend that we should replace the alternator. The problem went away.

#8
axefreak

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Maybe these schematics will help you.

RIck

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  • 1979 280ZX Chassis Schematic.gif
  • 1979 280ZX Chassis Schematic Cont..gif
  • 1979 280ZX Engine Control Schematic.gif


#9
sblake01

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Randy, as I said, there is one between the alternator and the battery. If that link is blown, you would have charging problems. If they have nothing to do with the car losing power, as you say, then unplug them and see if it runs.
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#10
sideshowbob

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Let's start a betting pool!

#11
randy 80ZX

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The fusible link is "black " 16guage for alternator approx 80 amps. If one pulls it off ,car won't run., As stated in original post the car is idleing fine therefore this is not his charging problem.

#12
sblake01

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Bottom line: fusible link is dry rotted-replace it and others that are bad and go on from there.
2004 Ford Ranger EDGE Supercab
(@Moonpup: This one really is an EDGE!)
2005 Pontaic GTO
2010 Mercedes Benz C300 AMG Sportline (Wife's car)
2014 Kia Rio LX (Wife's daily driver)
Certified HVAC/MVAC Technician

#13
slaptimmay

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ok when i save up to get a new alternator ill test it out n see what happens. i still want to replace the links though because the one wasnt looking too good. it was all green inside and stuff. if anyone has a set of front fenders and they wana sell them cheap that would be good. feel free to post anymore info you know or find out. thanks - tim
79 280zX with full eibach suspention and independent rear. msd ignition. headers to a cherry bomb....lowered 2 inches. right now black primer. already have pearl black paint with 2 black leather racing seats. IF ANYONE HAS FRONT FENDERS FOR A 1979 280ZX OR FRONT AIR DAM PLEASE E-MAIL ME @ TIM_7_2000@YAHOO.COM THANKS :bunny:

#14
sblake01

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It's a ZX, not a Z. I don't mind helping if I can since there are some similar components between the Z and the ZX but call the car what it is.
2004 Ford Ranger EDGE Supercab
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2005 Pontaic GTO
2010 Mercedes Benz C300 AMG Sportline (Wife's car)
2014 Kia Rio LX (Wife's daily driver)
Certified HVAC/MVAC Technician

#15
slaptimmay

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X :rolleyes: its a z to me. i like saying z more than zx
79 280zX with full eibach suspention and independent rear. msd ignition. headers to a cherry bomb....lowered 2 inches. right now black primer. already have pearl black paint with 2 black leather racing seats. IF ANYONE HAS FRONT FENDERS FOR A 1979 280ZX OR FRONT AIR DAM PLEASE E-MAIL ME @ TIM_7_2000@YAHOO.COM THANKS :bunny:

#16
Phacade

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X :rolleyes: its a z to me. i like saying z more than zx



Yes, but Z owners are rather particular of their cars. Besides, you wouldn't call a Bull Dog a Bull Terrier when going to the vet, yes? Proper namesake helps alot in diagnosis.
"Go into emptiness, strike voids, bypass his defences; hit him where he does not expect you" -Lao Tzu

#17
slaptimmay

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yea i see what ya mean. im the same way when people say the name of my 4 wheeler wrong.
79 280zX with full eibach suspention and independent rear. msd ignition. headers to a cherry bomb....lowered 2 inches. right now black primer. already have pearl black paint with 2 black leather racing seats. IF ANYONE HAS FRONT FENDERS FOR A 1979 280ZX OR FRONT AIR DAM PLEASE E-MAIL ME @ TIM_7_2000@YAHOO.COM THANKS :bunny:

#18
rcperez123

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Try ebay type Datsun 280z and your on your way!

#19
sblake01

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Try ebay type Datsun 280z and your on your way!


That's 280ZX! :classic:
2004 Ford Ranger EDGE Supercab
(@Moonpup: This one really is an EDGE!)
2005 Pontaic GTO
2010 Mercedes Benz C300 AMG Sportline (Wife's car)
2014 Kia Rio LX (Wife's daily driver)
Certified HVAC/MVAC Technician

#20
slaptimmay

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watch out RC they'll bite your nuts off if you dont say it right. other than that they are good, very helpful people.
79 280zX with full eibach suspention and independent rear. msd ignition. headers to a cherry bomb....lowered 2 inches. right now black primer. already have pearl black paint with 2 black leather racing seats. IF ANYONE HAS FRONT FENDERS FOR A 1979 280ZX OR FRONT AIR DAM PLEASE E-MAIL ME @ TIM_7_2000@YAHOO.COM THANKS :bunny:




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