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trolling motor bearing

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hey. i have a 71lb motorguide, which started getting stuck. i was having a hard time pushing the pedal to turn it. upon inspection i found out the bearing was missing some balls. how can i replace it or fix it?? its already rusted so i dont know if i could find the missing balls and put some lube in it, or if i could find a new one, and how to dissamble the rod to install it... 

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im sorry i thought i was in the Boating section... 

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Go to the Motorguide home page on the web.  On that, find servicing dealers, or something similar.  Call one of those, get the price for a new bearing, and how much it will cost to have them replace the bearing.  Then decide if you want to get the bearing and try to tackle the job yourself, or whether it's more practical to buy a new one.

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thanx! i already found the part for less than $5... i just need to figure out how to remove the top pinion, the one that turns with the cable steering... after removing that, the replacement is easy....

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If you google images of "motorguide schematics" you might be able to figure out how to take it apart to change the part 

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You have to take the head off.  Depending on the model, those can be pop riveted on so you have to be careful removing them.  One, if you use a drill too large it may bite and drill the hole too big.  Second, you have to be careful not to let pieces drop down into the motor.   Be sure to mark all wires because they will all have to come off.   The bearings are held in place with allen screws once you finally get the shaft out.

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3 hours ago, Way2slow said:

You have to take the head off.  Depending on the model, those can be pop riveted on so you have to be careful removing them.  One, if you use a drill too large it may bite and drill the hole too big.  Second, you have to be careful not to let pieces drop down into the motor.   Be sure to mark all wires because they will all have to come off.   The bearings are held in place with allen screws once you finally get the shaft out.

That being the case, hang the motor upside down when you drill out the pop rivet.  When done drilling, use a vacuum with a crevice tool and vacuum the end of the tube, just in case any bits of material got lodged in the wiring.  Move the wires around as you vacuum.

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thanx!  i jus fixed it, but i didnt have to remove the rivets. the rivets hold the head to the outer shaft, and i had to remove the inner shaft... so i just had to remove the cap, and to gain access to the bearings, i had to remove the pinion. its screwed in place really tight, it took one of us holding the lower unit and the other one turning the pinion with a big wrench to get it to move... i also had to cut the wires that run inside the shaft... but pretty much its a very basic process... i found some bearings just the right size in a bicycle shop, they were $0.50 each... i was about to order online, they are only $5, but they would ship to the US and then i would have to go and pick them, and theses ones i found locally in Mexico.... it turns good in my driveway, i dont see why it wont work on the water... i also applied some bearing grease to both of them...

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Actually, I was thinking about having to replace a bent upper shaft when referring to the pop rivets, this is not the case.  All you need to do is take the top off the head. Disconnect all the wires going down into the motor shaft.  There should be some kind of a collar screwed on top of the motor shaft holding it in and the top bearing.  Undo it and slide the motor shaft out to gain access to the lower bearing. 

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1 minute ago, Way2slow said:

Actually, I was thinking about having to replace a bent upper shaft when referring to the pop rivets, this is not the case.  All you need to do is take the top off the head. Disconnect all the wires going down into the motor shaft.  There should be some kind of a collar screwed on top of the motor shaft holding it in and the top bearing.  Undo it and slide the motor shaft out to gain access to the lower bearing. 

that is correct... only there was no way of disconnecting the wires, i had to cut them... and its the pinion the one holding the inner shaft in place... once i removed it, the shaft just slid down....

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http://www.boats.net/ should have all the parts you need if you havent already found them just went through the same thing with my digital tour series. 

 

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thank you!!  i have bought from them before, for hard to find parts for the big engine... however, since i live in Mexico, its difficult and expensive for me to order to the US and thn go and pick the things at my address there... so, i went to a bicycle shopand found the bearings for $.050 each....they are used in older bikes for the handlebar... i have yet to test it on water but on the trailer the motor spins smooth now...

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I'd suggest that you put a light coat of white lithium grease on the bearing to prevent it from rusting out again.  Get a small tube (like a small toothpaste tube) and a soldering brush, and brush it on sparingly.  Do it at the end of each year.  Should only take a few minutes.

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 The one made for it should be stainless steel, not sure about the bike substitute.  What usually happens to them is that bottom race gets loose, slides down a little and it looses it's balls:o

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thanx, i already applied some grease to them... the lower bearing was rusted, but the upper one was not... however the crown was broken in one part and that made it begin loosing its balls haha.... i will keep an eye on them and grease as required....

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3 hours ago, Way2slow said:

 The one made for it should be stainless steel, not sure about the bike substitute.  What usually happens to them is that bottom race gets loose, slides down a little and it looses it's balls:o

Hmmmm, I never heard of a bearing being neutered.

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