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Tierod
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 Posted - October 29 2012 : 05:44:08 AM
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I am new to the forum and so far impressed with the help you guys pass around. My problem, really two issues, are - the motor does not seam to be able to be dismantled. At both ends it appears to have rivets. I could drill the pins from the bottom but are the pins (rivets) replaceable. The reason I need to dismantle - 2nd issue - is that the transformer is glowing at full power indicating resistance, although the Diesel still runs all be it a little slower . Resistance is some where and thought it could be a build up of carbon on the contacts, but not sure. Maybe someone could suggest whats up. I run Tri-ang, Life-Like and Atlas and can usually get to the armature and points to clean but not with this unit.
I have attached a couple of pics to show the motor.   
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Posted - October 29 2012 : 08:14:12 AM
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Welcome, Emmanuel. Greetings from embattled New Jersey.
The rivets can be drilled out, but don't usually need to be to service the motor. You can soak the whole truck in alcohol and clean it with a brush, and use pipe cleaners to get into the recesses of the motor if necessary. You can even snap off the sideframes for easier access to the commutator, but you'll have to glue them back on.
The orange wire makes me suspicious tho, because I don't think it's original. It should go to the back of the headlight bulb. Check the the bulb is properly mounted, and that a frayed wire or bad solder job isn't causing a short.
The Tyco Depot
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Posted - October 29 2012 : 08:15:01 AM
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I've seen it done where people drill out the rivets, maintain the motor, and then replace those rivets with screws.
My Youtube Channel: http://www.youtube.com/user/weekendrailroader?blend=1&ob=video-mustangbase
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Posted - November 05 2012 : 11:54:54 PM
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quote:I've seen it done where people drill out the rivets, maintain the motor, and then replace those rivets with screws.
Originally posted by weekendrailroader - October 29 2012 : 08:15:01 AM
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The brushes can be removed, and the armature cleaned, without removing the rivets. But if you want to for ease of working on it, they can be replaced with super-long 2-56 screws and nuts ( done it before ). You'll probably have to find those screws online, as most hardware stores do NOT carry 2-56 screws, and not the super long ones you'd need anyway if they did. Some hobby shops carry 2-56, but again, rarely the long ones you'd need here. But if you are diligent and agile, you can remove the two brushes without disassembling the motor by drilling the rivets out. Could be there's metallic junk between the commutator pads, could be causing the problem. I'd remove the brushes, then clean it with alcohol.
Jerry
Jerry
" When life throws you bananas...it's easy to slip up"
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Tierod
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Posted - November 08 2012 : 8:01:44 PM
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I had a hell of a time trying to get to the web site. I thought Sandy submerged the server. Good to know you guys are back on line - a lot of Aussies have been following both Sandy's progress and the presidential election race - hope this next blower is a fizzer . Thanks Nickelplate, AMC Gremlin & Weekendrailroader, I idn't want to go that far and remove the revits until I heard back from the forum. The PENN is too good a runner to experiment on. I agree - the orange wire is foreign and I guess the joint or something in the motot is causing the resistance. I'll follow through and check both - wire first. I will try cleaing without disassembling but failing that - the thin bolt and nut may do the trick. Cheers
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Posted - November 08 2012 : 11:32:30 PM
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Yeah, we're back up & running here. Some close by are still without power. Cable service is spotty and went out again earlier tonight.
After a second look, there's a pretty messy blob where that wire is soldered to the post. That or stray strands could be shorting to the other brush.
The Tyco Depot
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Tierod
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Posted - November 09 2012 : 03:57:10 AM
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| You know when you guys in the states have a major problem I don't hear of many countries offering to give you a helping hand - but when they have a problem the States are usually the first to offer. Have a lot of respect for your self reliance. Good point about the messy blob. I'll be cleaning all that as I go.
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