D17 Alternator Conversion HELP!
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Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=130806
Printed Date: 06 Jan 2025 at 3:44pm
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Topic: D17 Alternator Conversion HELP!
Posted By: Travis2766
Subject: D17 Alternator Conversion HELP!
Date Posted: 02 Nov 2016 at 8:00pm
I'm switching my d17 series iv from the old generator to an alternator and running into some problems. I did a lot of research on past posts on this and decided to go with a delco 10si alternator as this seemed to be the most common for this conversion. I am switching the pulley off the generator to the alternator in order to miss the belt for the power steering but I cant get the pulley off the generator, I got the nut off but cant get the pulley to pull off of the shaft. Is it threaded on or pressed or just stuck? Any Thoughts? I am a little reluctant to heat it with a torch because the metal is so thin. Also what has anyone done in the past to mount the alternator? I was hoping to be able to shim the front mount forward and drill a hole in the bracket for the motor mount but after measuring the bracket on the alternator isn't long enough to clear the motor mount. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Replies:
Posted By: Gerald J.
Date Posted: 02 Nov 2016 at 8:55pm
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The pulley should pull straight off, its retained by the nut. When I put a 10SI on my gas 4020, I bought (through the auto electric shop) the smallest wide pulley so I could use the same belt because the alternator is fatter than the generator and wouldn't swing in enough to use the standard fan and water pump belt. I also found an extension piece for the pivot bolt of the alternator that extended it to the same length as the generator so I could used the original generator U bracket. I did have to drill new mounting holes in the generator bracket to line up the pulleys. Gerald J. |
Posted By: jaybmiller
Date Posted: 03 Nov 2016 at 6:19am
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It's just 'stuck'... I'd prop up the genny, pulley side up , on 2 blocks about an inch from the bench.Get a bolt or piece of steel rod and whack the genny shaft, smartly. The genny should drop down.OK, maybe 2 or 3 whacks it's been on awhile !! I used CS-130 style alternators for my D-14s, smaller more power(not needed though) and no 'issues' with hitting the tin....got to use the original size belt too... BTW to get the nuts off, I use an air wrench.One small burb and it's off, easy. Jay ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Travis2766
Date Posted: 03 Nov 2016 at 7:38am
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I already tried the propping method but with a 3 lb hammer and a punch and no go. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: Sugarmaker
Date Posted: 03 Nov 2016 at 8:49am
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Travis, Maybe soak in wd40 then try a air hammer on the end of the suspended generator? Things get stuck pretty tight after many years in service. Regards, Chris ------------- D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet. |
Posted By: Travis2766
Date Posted: 03 Nov 2016 at 9:17am
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Also if anyone has a picture of the bracket they made for the alternator, I can PM you my number so you could text it to me if that's easier. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: Steve in NJ
Date Posted: 03 Nov 2016 at 9:59am
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Be careful pounding on a Generator or Alternator. All that does is rattle things up inside the unit and possibly knock a brush outta whack. That's all that's needed to mess up the com plate when the engine is started and things start to spin around side breaking or chipping a brush or bending a brush holder. The bestest way to remove a stubborn pulley is a LITTLE heat and a puller. Over the years, I've had some tough pulleys to remove as part of the rebuilding process. It is challenging to say the least. Sometimes you make up new swear words. If worst comes to worst and you can't get that pulley off, we offer a CNC heavy duty replacement pulley pretty cheap that fits all the Delco Alternators. HTH Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: Travis2766
Date Posted: 03 Nov 2016 at 10:02am
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Thanks Steve!, I got the pulley off exactly like you said "a little heat and a puller" but now have to figure how to mount the alternator in place of the generator. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: Steve in NJ
Date Posted: 03 Nov 2016 at 10:24am
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Good job Travis!! ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |
Posted By: Creek Jenkins
Date Posted: 03 Nov 2016 at 1:15pm
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I've got a drawing of the bracket I made for my S1. Not sure if it would work on yours as I don't have power steering. cheers, Creek ------------- Have spacesuit, will travel |
Posted By: JoeO(CMO)
Date Posted: 03 Nov 2016 at 4:01pm
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^ ------------- |
Posted By: Travis2766
Date Posted: 03 Nov 2016 at 7:48pm
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I've read the thing about using a bracket for a 170, I can find one anywhere online and I'm not close to any scrapyard. Anyone know where I can get one? ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: DrAllis
Date Posted: 06 Nov 2016 at 6:37am
| Use the D-17 S4 gen pulley but leave the cooling fan off. This helps clear the power steering belt. |
Posted By: Jcashsalt
Date Posted: 07 Nov 2016 at 7:11pm
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Hello guys im new to forums and also to Allis tractors reciently i was giving a tractor from my g pa who passed away and im having trouble identifying it any help is much appreciated. Here are some numbers ive gotten off it. Am 2976 13 J or n 25 z am3208 2 am 2787 18 or on other side20 |