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Post by spandy24 on Apr 14, 2013 20:45:21 GMT -5
Ok, heres the issue:
Ok so I thought my battery was weak and it would turn the engine over a few times then die. Then all of the sudden it started blowing fuses, unplugged the entire wire harness to start eliminating each component. I have it down to either the stator or the rect/regulator. I have 3 regulators that I tried with the stator. Finally got it to not blow a 10 amp fuse by hooking up a new regulator. I then hooked up a brand new charged battery, it sounds like its dying immediately when turned over again! Does this mean that the starter is blown??
The solenoid is working and the starter turns but just once or twice before dying like a bad battery. The previous battery metered 12.5V and probably was bad but the new battery acts the same way.
I need some ideas
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Post by spandy24 on Apr 15, 2013 21:06:59 GMT -5
no one?
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Post by yelloscoot on Apr 15, 2013 22:37:43 GMT -5
[replyingto=spandy24]spandy24[/replyingto]Okay,....I'll throw out my idea...and wait for other takers. Old battery reading 12.5, new battery...[12.5], solenoid is working. I feel the starter is trying to pull too much power to turn over, thus causing an excessive draw on the battery... now blowing fuses. Have the starter checked at Autozone or some place. It doesn't cost any thing to try,...just your time. That's my two cents. If I'm correct, then I'm learning also. Good luck.  |
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Post by captonzap on Apr 15, 2013 23:10:49 GMT -5
[replyingto=yelloscoot]yelloscoot[/replyingto]I don't know what your wiring scheme is, but on all the schematics I have seen, the current for the starter does NOT go through the fuse. Only the current for the starter solenoid coil is in the fused circuit. Measure the resistance through the solenoid coil, and also measure to see if there is any continuity from either of the coil leads to ground.
Most faults that will blow a fuse are pretty easy to find with an ohm meter and a wiring diagram.
CZ
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Post by spandy24 on Apr 15, 2013 23:21:49 GMT -5
You're saying measure the continuity between each solenoid terminal and ground? The battery is unconnected and cannot be connected as it blows a fuse instantly. It seems as though its a bad ground connection. I have located two grounds, one behind the rectifier and another on the head cover. I have looked over all the wires for loose/frayed ones and found nothing.
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Post by captonzap on Apr 18, 2013 10:35:49 GMT -5
There are two big terminals on the solenoid. One has a wire from the positive (+, red) battery terminal, the other has a wire that goes to the starter.
Hook both of those up. Anything happen, sparks, melted wire with smoke? No? Good!
Disconnect the small wires from the harness
Now take your meter, set it on 200 ohms, (the horse shoe shaped character with flat feet on the open end of the horse shoe means ohm), put one lead on the negative (-) battery post, and the other lead on one of the small wires of the solenoid. Nothing should change on the meter reading. Try the other small lead. Still nothing? Good.
If either of those readings change, get another solenoid
Now take the two meter leads, and put them on the two small solenoid leads, Still on 200 ohms, you should get a reading of more than 5 ohms. (I don't remember the number, 25 seems about right, if memory serves. I will check mine later today and give you a definite number tonight).
If it is less than 5, get a new solenoid.
If it is more, take two jumper wires and take the two small solenoid leads and hook them to the two battery terminals. The starter should turn the engine over.
In which case, the fuse blowing short is someplace else in the system. But first things first. Check this, and we'll go from there. CZ
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Post by spandy24 on Apr 22, 2013 10:36:36 GMT -5
Solved!
It ended up being both a bad ground behind the rectifier and a burned up starter. I never realized how hot these little starters get after a bbk. I put a new starter on and with the fresh battery it was turning over like it should. I am still in the break in phase on the engine so I am hoping that it will loosen up a bit.
Thanks for all the help
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Post by DaveC on Apr 22, 2013 10:59:43 GMT -5
Glad ya fingered it out
It's twice as tough when there is more than one issue, and you found em both
Good on ya
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Post by yelloscoot on Apr 22, 2013 11:10:32 GMT -5
Good job. At least I was partly correct about the starter and still learned something.  Thanks, both of you |
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