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AC 180 
Bronze Level
Joined: 16 Jun 2017
Location: Pa.
Points: 4
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 Topic: ac 180 Diesel starter
Posted: 16 Jun 2017 at 3:11pm |
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looking for help on why ac 180 diesel starter is not engaging.Both battery check good-just had starter rebuilt= new selonoid.I have been chasing wires looking for bad connection found none.Took starter back to rebuilder and they adjusted Bendix depth and put a different new selonoid in case it was faulty new one.Sounds like starter gear is spinning but not engaging.Took starter out laid it on bench used jumper cables ground on starter case then touched hot ontried contact for motor selonoid s terminal Bendix jumps out then tried hot on post of starter and it turned starter motor.Any Ideas
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KJCHRIS
Orange Level
Joined: 21 Dec 2015
Location: WC Iowa
Points: 986
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Posted: 16 Jun 2017 at 7:53pm |
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While starter removed, look in hole and see what the teeth on ring gear look like. Tractor is 40 years old and the ring gear may be getting worn. I've never had 1 lose teeth or get worn down on 180 or 200, but have replaced some on D series tractors.
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AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B,
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DSeries4
Orange Level
Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7574
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Posted: 16 Jun 2017 at 8:50pm |
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Ditto on the ring gear.
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'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
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MACK
Orange Level
Joined: 17 Nov 2009
Points: 7664
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Posted: 16 Jun 2017 at 10:37pm |
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What brand of starter do you have? MACK
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AC 180
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Joined: 16 Jun 2017
Location: Pa.
Points: 4
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Posted: 17 Jun 2017 at 6:37am |
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teeth look good on flywheel and starter is Delco
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LeonR2013
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Joined: 01 Jan 2013
Location: Fulton, Mo
Points: 3500
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Posted: 17 Jun 2017 at 6:48am |
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Never seen it happen but could the thru. shaft have come loose and everything is spinning on it? Can't think what that shaft is called, but just something that came to my mind to look at.
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MACK
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Joined: 17 Nov 2009
Points: 7664
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Posted: 17 Jun 2017 at 7:52am |
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Binder is bad. MACK
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MACK
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Joined: 17 Nov 2009
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Posted: 17 Jun 2017 at 7:55am |
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Bindex
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AC 180
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Joined: 16 Jun 2017
Location: Pa.
Points: 4
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Posted: 17 Jun 2017 at 8:47am |
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Bendix kicks in and out strong.Bendix is suppose to turn clockwise.Is that looking from operators seat or standing at radiator looking toward rear of tractor?I think Rebuilder has it turning wrong way.Is that possible when they said they put new brushes and fields in?
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DanD
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Joined: 11 Sep 2009
Location: WI
Points: 856
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Posted: 17 Jun 2017 at 8:53am |
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Starter should be turning clockwise when you're looking at the gear end. If you're looking at the starter from the end away from the gear it should turn counter clockwise.
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8761
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Posted: 17 Jun 2017 at 9:14am |
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I'm not electrical but sounds possible change direction by messing with fields and brush holder.You know starters turn opposite directions when facing opposite directions on engines.Your Bendix would free wheel in that case.Guessing it worked ok before(Bendix)?
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