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Wayne
09-16-2003 22:20:22
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Re: Won't turn over Part 2 in reply to Brad, 09-16-2003 18:15:15
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Hey Brad, I just read this post as well as the previous one and looked at your diagram too. Judging from what you've drawn, the starter has a relay type solenoid on it already. I say this because there's a wire going to the relay sol on the starter from the other relay, as well as the metal strap going to the post on the starter body itself. This wire and strap is the high amp starting circuit that actually carries power to the starter. The little wire from the switch is the one that actually causes the contacts to close and allows power to flow to the starter. Usually when you see an aux relay on a starting circuit the starter only has one big lug (like where the metal strap ties in) and doesn't have any of the smaller ones. It looks to me like they have somehow wired the starting circuit (wire from the switch) and the solenoid (little wires) on the aux relay and the solenoid on the starter (little wire) in series. Here's where your test light comes in. First check and insure you have power at the big post on the aux relay (from the batt) if so then have someone turn the switch to the start position and see if you have power on the little wire (from the switch) at the aux relay. If you have power there, then you should also have power on the big wire on the other side of the relay. Ok,now if you have power to the little wire and through the relay on the big one, good, if not that relay is bad, change it and that should fix the problem. Now assuming that relay checks out and you have power where your supposed to, then lets go on. Next, see if you have power on the little post on the sol relay on the starter itself. If on the aux relay you have power on the small wire and through on the big wire like we just finished checking, then going by your diagram, you should have it here at the starter too on both the small and big wire, when the switch is in the start position. If either wire doesn't have power on it then you have a problem in the wires between the aux sol and here. Now if you have power on both big and small wires connected to the sol relay on the starter, then the contacts inside it may be burned and not making contact. You can check this by jumping the post with the big wire on it to the metal strap on the starter body, and then hitting the start switch. This will bypass the contacts inside and make the power be going just through the aux relay and straight to the starter. If this works, then you need to have the starter sol relay replaced. If it doesn't work, then I don't know what to tell you. I work on heavy equipment for a living and if I could see it I could tell you exactly what was wrong in probably 5 minutes, but troubleshooting like this is like looking for a needle in a field full of haystacks. If it's wired the way it appears to be, personally I'd pull the hot/battery leg straight to the sol relay on the starter and pull the small wire from the start switch down there too, and eliminate the aux relay all together. I don't think I've ever seen an older piece of heavy equipment with the starting circuit wired like yours, but again, if it was working before, then just take it step by step with a test light and make sure you have power where you are supposed to and where the power stops there is your problem. Well, that's all the help I can be for now. Hopefully I haven't confused you further. If what I've told you doesn't work, feel free to e-mail me direct and I'll be happy to help you all I can.If I can't do it this way, I'll give you my number and you can call.....that way would be alot friendlier to my hunt-n-peck typing fingers. Good luck, and again if I can help anymore, just let me know. Wayne
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