7060 alternator problem
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Category: Allis Chalmers
Forum Name: Farm Equipment
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=177517
Printed Date: 29 Aug 2025 at 8:20am
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Topic: 7060 alternator problem
Posted By: ToddnwIl
Subject: 7060 alternator problem
Date Posted: 13 Jan 2021 at 4:39pm
| Our 7060 had the neihoff alternator on it and we have changed it over to a delco 110 amp alternator. We are using the old pulley but the tachometer isnt reading right. What pulley do we need and where can we get it? |
Replies:
Posted By: jaybmiller
Date Posted: 13 Jan 2021 at 4:53pm
|
betcha Steve wil know........ I'm thinking if it reads low now, you need a smaller pulley as that'd speedup the alternator. Course that begs the question HOW will you know that 1200 RPM IS 1200 RPM ? ------------- 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: Joe(TX)
Date Posted: 13 Jan 2021 at 5:02pm
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If you are using the old pulley, I should be turning the same speed. There may be a difference in the number of pulses between the alternators. ------------- 1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A |
Posted By: Darrell G (MN)
Date Posted: 13 Jan 2021 at 7:09pm
| I believe ( can't remember for sure, someone told me that when I was thinking of a Delco.) you need a pully from a 1206 int. and that should make your tack accurate |
Posted By: Ron(AB)
Date Posted: 13 Jan 2021 at 7:39pm
Size doesn't matter. haha  ------------- 405, 7000, 7050, 8050, 8070, L3, 2300 & 2600 disk |
Posted By: Lynn Marshall
Date Posted: 13 Jan 2021 at 8:08pm
| I get mine from Sioux City. They are 3 7/8 outside diameter. I was thinking that Shoup offered them too?? |
Posted By: Albert
Date Posted: 13 Jan 2021 at 8:56pm
|
I can help with the correct pulley for the conversion and also the belt will line up better. Albert
|
Posted By: Michael V (NM)
Date Posted: 13 Jan 2021 at 10:10pm
| How did ya get the niehoff pulley on the Delco? The niehoff I have seen, the shaft is smaller than the Delco, I suppose it could be drilled.... |
Posted By: Gregor
Date Posted: 15 Jan 2021 at 10:16am
| I was wondering the same how you got the pulley to work. A year or so ago I changed out my 8030 to a delco and had to get a new pulley as the one it came with only had a single grove belt set up and the niehoff pulley would not work? |
Posted By: DrAllis
Date Posted: 15 Jan 2021 at 11:56am
| 40+ years ago, A-C had a "kit" to update older Delcrotron alternators (old maroon 7000 series) to the new 100 Amp Neihoff. It came with a new tachometer. Must be the old tach wouldn't read correctly with the Neihoff. |
Posted By: Steve in NJ
Date Posted: 16 Jan 2021 at 9:53am
|
Not only did some of the Niehoff's have a smaller .580 shaft, vs the .670 Delco shafts, the pulley diameter as well as the offset was a bit different also if memory serves me right. As Albert mentioned the belt fits better. Its been quite a while since I've changed over a Niehoff. They were a PIA sometimes when it came to tachometer outputs... 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: Alvin M
Date Posted: 16 Jan 2021 at 10:17am
| I use Select Parts # 778-1069-1 it is the right to change from Niehoff to delco tack will work right niehoff pulley was 3 1/2 O.D delco is 3 7/8 O>D.O Shaft size is.670 For both |
Posted By: Kevin in WA
Date Posted: 16 Jan 2021 at 10:32am
| Hy Capacity has a pulley for this conversion. |