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1st February 2021, 19:57 | #11 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
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Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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3rd February 2021, 16:29 | #12 |
Gets stuck in
VW touareg Join Date: Mar 2015
Location: dunsop bridge
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Took the fan apart today and hopefully one of you nice gents will say if needs new brushes or lobbing in the hedge.
And anyone know what size screws are needed as none survived. The back cleaned up ok , first time I've used the blaster in anger. Stan
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WE WERE BOTH BORN ON THE 4th of JULY CAR DIED 15/11/2022---I'M STILL GOING (JUST) |
3rd February 2021, 16:56 | #13 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
Location: Gävle
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One brush is missing isn't it, otherwise the "board" looks OK, I've even used sand at a distance to clean that up too.
Commutator is a different matter and depends how deep that score goes, but on the other hand what have you got to lose? Try and grind it down and see. I don't have a lathe or anything fancy, instead I put the shaft into a drill and rotate against a file to get rid of the coarse material, then sandpaper, and finally score the segments with a Stanley type knife. Good luck |
3rd February 2021, 16:57 | #14 | |
same car since 2005
2001 Rover 75 2.0 v6 Connoisseur Saloon Join Date: Nov 2006
Location: Ellesmere Port , Cheshire
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Who said it was simples ? |
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3rd February 2021, 17:15 | #15 | |
Gets stuck in
MG ZT 190 SE Join Date: Oct 2017
Location: Chatham, Kent
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I would see if the comm will clean up, use a strip of fine sandpaper to get it back to nice shiny copper and clean up the commutator slots. When I was an apprentice at the railway depot dealing with DC motors, you slot and vee the grooves. Use a thin blade to clean out the slot, then run a 'V' shaped blade across the slot and then a quick run with sandpaper to take any burrs off. Blow out any dust (or vacuum out) You may be lucky. Another thing to do is wrap a few strands off bare copper wire around the commutator and check resistance to the shaft of the armature, this will make sure that none of the windings are shorted, on a comm that size I would expect a good few thousand Ohms resistance if good. |
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