If i open the gearbox thingy is it difficult to put it back together? (i.e will lots of things fall out?)
I tried to open the gearhead but I cant because I think its got some rivet type things.HarveyH42 said:Since it got hot enough to mention, guessing very hot. I'd open the gear head and see if there is damage, and just to make sure its well greased after the melt. Makes a big difference...
HarveyH42 said:Really no automotive expert (fix what I have to). Only open it the one, think it came out of an early 80's Ford P.O.S.(as describes most Ford cars), been a while. A lot of stuff is made to be replaced as a unit, instead of just the failed component. Likely more trouble then it's worth. If you were really set on using wiper motors for something, might be worth drill out the rivets just to see what's inside. I would think they are easy and cheap to find at the salvage yard. Kind of depends on if you have the spare time, the curiousity, and the tools.
A temperature well over boiling point of water is not too hot for most motors but will cause a blister if touched for to long.Nigel Goodwin said:I can't say I've ever had any occasion to feel a wiper motor!
But electric drill and vacuum cleaner motors get too hot to touch.
The case is negative, the two wires are usually for two different speeds.bitem2k said:right,
I drilled the rivets and all appears to be well inside the gearhead. Lots of grease.
I ran the motor without the gearhead on, and it still gets really hot.
If i connect negative lead from the 12v battery to the case of the motor,
I can then touch either wire, yellow or white with the postive lead from the 12v battery and it will work.
I dont quite understand this. I thought that one was + and one was -, but if the case is negative, surely only one of these wires should make the motor work?
Because you're still connecting to the motor windings, effectively putting them in series, with the ground connection being the common.bitem2k said:So why does the motor turn if I connect both wires and not the case?
Quite probably, it's certainly a VERY bad way to connect it - it had never occured to me you might be connecting it in that way?.bitem2k said:Ok thanks,
Do you think that my heating problem could be caused by me connecting + and - to both wires, instead of - to the case and + to one of the wires?