06-06-2009, 07:13 PM #1
96 Sea-Doo Challenger (787) Electrical Issue
So my buddy bought a 96 Challenger (787 Engine) with known engine issues. The previous owner was told by a shop that the crank had seized so he was offloading it. We can see on the exposed part of the crank on the PTO side that there's a little surface rust, so it's possible that the whole thing is rusted, but at this point we can't tell.
This was our troubleshooting idea:
- Get a battery and see if it does turn over
- If it does, pull the jugs and see if there is rust on the crank
- go from there
We took off the heads, pistons look good. We hook up a battery and the bilge goes on for a few seconds then turns off. We tried to crank it and the crank made one full revolution but then we get one loud beep from the buzzer. I take off the DESS and try the whole process again, but get another loud beep. This is when it gets weird. I go to check the negative terminal to see if it was on tight (it was) but it was also burning hot - so much so that I burned my finger. The positive was hot too, but not as much. So I figure there's a bad connection somewhere, but I checked everything and there doesn't appear to be anything frayed or shorting.
So here's my question: What could be causing the negative (and positive) wire to heat up so much? Anyone else encounter this problem?
06-06-2009, 07:16 PM #2
PS the wires themselves seem to be free of corrosion I was thinking there might be a bad connection there, but it seems to be ruled out.
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