Would reverse battery cause fried wires?
#1
Smoke moar
Thread Starter
Would reverse battery cause fried wires?
I've posted before, no cash for a fuel pump atm but I wanna get this SA going.
The batt was reversed I got everything working but no fuel pump sound, would the fuel pump its self die or the wires if it was reversed?
Its a 79SA so maybe the wires burnt out?
If theres any hope I suppose we could move the car to get to the fuel pump, any body know where it is on a 79SA, right rear wheel area right?
The batt was reversed I got everything working but no fuel pump sound, would the fuel pump its self die or the wires if it was reversed?
Its a 79SA so maybe the wires burnt out?
If theres any hope I suppose we could move the car to get to the fuel pump, any body know where it is on a 79SA, right rear wheel area right?
#2
I'm not sure how your 7 is wired compared to my 84SE, but one time I accidentally crossed the cables, and I fried one of the fusible links. I can't remember which one got toasted.
Mike
Mike
#5
Smoke moar
Thread Starter
Well I already know theres no fuel pump working.
I don't think the fuel pump has any sort of control since its carb. My friend said the fuel pump's dc motor wouldnt be affected by reverse polarity.
Everything on the car works, the fusible links are "okay" looking.
I don't think the fuel pump has any sort of control since its carb. My friend said the fuel pump's dc motor wouldnt be affected by reverse polarity.
Everything on the car works, the fusible links are "okay" looking.
#6
1st-Class Engine Janitor
iTrader: (15)
Fuel pump on a 79 runs whenever ignition is on, just like my 80. Outside of the electronic ignition, 79's and 80's are real similar on wiring.
Next step would probably be to disconnect the fuel pump electrical connector & jumper it straight to the battery, & see if it runs.
If it runs, it's wiring, fuses, fuse link, or ignition switch.
If it doesnt run, it's the pump.
Remember to be careful about making electrical sparks near fuel vapor; Safe approach would be to leave the pump installed, and just use some long wire to jumper to the connector (under the sheetmetal behind the driver's seat, as I recall) for the test.
Next step would probably be to disconnect the fuel pump electrical connector & jumper it straight to the battery, & see if it runs.
If it runs, it's wiring, fuses, fuse link, or ignition switch.
If it doesnt run, it's the pump.
Remember to be careful about making electrical sparks near fuel vapor; Safe approach would be to leave the pump installed, and just use some long wire to jumper to the connector (under the sheetmetal behind the driver's seat, as I recall) for the test.
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#8
Smoke moar
Thread Starter
Okay
Where exactly is the fuel pump?
i dont wanna be up there feeling around, theres tons of black widow spiders :X already got bitten doing the brakes
Where exactly is the fuel pump?
i dont wanna be up there feeling around, theres tons of black widow spiders :X already got bitten doing the brakes
#9
Stigulus Moderatorai
iTrader: (3)
As for the spiders, why not spray them down with poison?
#10
Smoke moar
Thread Starter
Dont got any poison and they hide in places.
I looked at your 80fsm.
I see a similar fuel pump cover thingy.
Which bolts gets it off? 2 of them are like welded in
I looked at your 80fsm.
I see a similar fuel pump cover thingy.
Which bolts gets it off? 2 of them are like welded in
#11
Work in Progress
iTrader: (9)
Don't even bother getting the fuel pump off yet. Just remove the driver side storage compartment behind the seat, pull up the carpeting and there is the connection for the fuel pump. Just put power to it and see if your fuel pump works. If it doesn't that your job is easy and replace the sucker. If it does work that you have an electrical problem to trace.