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Starter/Generator Soldering
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wjohn View Drop Down
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Joined: 19 Jan 2010
Location: KS
Points: 2282 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wjohn Quote  Post ReplyReply Direct Link To This Post Topic: Starter/Generator Soldering
    Posted: 5 hours 27 minutes ago at 3:50pm
I was putting new solenoid contacts and brushes in the starter in my truck, and discovered halfway through that the brush leads are soldered to the windings (seems some are and some aren't on the Denso starts used in Cummins engines). I ordered a new starter for now and moved on... But I've always wanted to learn to do more on starters and generators seeing as we can't just go pick up a new on from our local auto parts store for our old tractors.

What is the tool of choice for something like this? I can tell it is going to take a lot of heat since the copper is pretty thick and is going to wick a lot of heat away... Big soldering iron? Torch?
1939 B, 1940 B, 1941 WC, 1951 WD, 1952 CA, 1956 WD-45
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 89217 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 4 hours 27 minutes ago at 4:50pm
BIG old time solder iron.. Not a newer solder gun...
Like them all, but love the "B"s.
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jaybmiller View Drop Down
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Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 24891 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jaybmiller Quote  Post ReplyReply Direct Link To This Post Posted: 4 hours 6 minutes ago at 5:11pm
I'd think they'd be 'silver soldered' NOT 'plumber's solder.
Just had the starter die on my '97 F150. The braided copper wire from the solenoid into the brushes corroded away. $150 replaced it but what a 'silly' idea having bare braided copper wire exposed to water,especially salty water.

Sad thing is IF I could find the part,it's a simple 10 minute repair.
3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

Never burn your bridges, unless you can walk on water
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Clay View Drop Down
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Joined: 11 Sep 2009
Location: Udall, Kansas
Points: 10152 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Clay Quote  Post ReplyReply Direct Link To This Post Posted: 2 hours 44 minutes ago at 6:33pm
I just rebuilt the starter for my 1983 F-250 6.9 idi diesel.
The brushes were worn out. Armature, bearings and windings were in good condition.
I used silver solder on the fields and braided copper wire.
Only cost me $15 for the parts as opposed to around $200 for a replacement starter.
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