battery connection screw up |
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battery connection screw up |
dt4 |
Jan 12 2020, 09:57 AM
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#1
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Senior Member Group: Members Posts: 502 Joined: 26-May 19 From: England Member No.: 23,161 Region Association: England |
I have had the battery off the car whilst stripping paint and priming etc.... but thought it would be good to turn the engine over and run it for a while to keep things in good health etc.....
I had the battery on the bench to charge it and then put it back in the car but very stupidly put the negative lead to positive terminal and positive lead to negative terminal. I didnt turn the key as I was checking other things when I realised what I had done. I noticed that there was a smell of smoke coming from the alternator area and the tin on top of the engine in that area was warm so suspect there is a connector to the alternator under there? I put the terminals on the right way around and tried to start the engine but it appeared the battery had drained? I recharged the battery overnight but wouldnt start, again the battery seemed low on charge Apart from seemingly screwing the battery, is there other damage likely to have occured cheers David |
dt4 |
Feb 12 2020, 12:40 PM
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#2
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Senior Member Group: Members Posts: 502 Joined: 26-May 19 From: England Member No.: 23,161 Region Association: England |
so I connected a jumper lead to the negative battery terminal and the engine and the starter sped up quite noticeably although not enough to fire up
I then ran a jump lead from the positive post on the starter to the positive to the battery, the starter remained at the increased speed but the engine didnt fire suggesting a negative lead to battery problem I also wonder about the non firing issue, could there be coil damage? I swapped batteries over but to no effect and now have the better of the 2 on charge as it started to struggle. I also tried the negative jumper on the starter itself to see if that was grounded, it ran at the improved speed but the doesnt sound to be any firing, I could take a plug out to see if there is a spark but I dont have a helper any more as the Mrs has fallen and broken her wrist |
ctc911ctc |
Feb 12 2020, 03:10 PM
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#3
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Senior Member Group: Members Posts: 890 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
You should not have taken your frustration out on your darling bride! Seriously, I hope she will mend quickly.
(IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/biggrin.gif) (IMG:style_emoticons/default/poke.gif) You need a 'lad' from the neighborhood to assist you - I would start by removing the grounding strap and cleaning and reattaching. As to the firing (Carb or Injectors?) check on the spark first. The coil, points and perhaps other ignition parts can be damaged. Search web on "testing Ignition coil". This is pretty easy as to Good/Bad, however, some test OK and then do not perform properly. However, to get going I would: Check the plugs for firing Check the plug wires Inspect the cap and rotor (burn marks,etc) Check the points (burn marks, etc.) Hey, you got past one mystery, how many are left to go? so I connected a jumper lead to the negative battery terminal and the engine and the starter sped up quite noticeably although not enough to fire up I then ran a jump lead from the positive post on the starter to the positive to the battery, the starter remained at the increased speed but the engine didnt fire suggesting a negative lead to battery problem I also wonder about the non firing issue, could there be coil damage? I swapped batteries over but to no effect and now have the better of the 2 on charge as it started to struggle. I also tried the negative jumper on the starter itself to see if that was grounded, it ran at the improved speed but the doesnt sound to be any firing, I could take a plug out to see if there is a spark but I dont have a helper any more as the Mrs has fallen and broken her wrist |
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