D 15 series 2?
Printed From: Unofficial Allis
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=196716
Printed Date: 12 Nov 2024 at 10:08am
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Topic: D 15 series 2?
Posted By: jiminnd
Subject: D 15 series 2?
Date Posted: 18 Aug 2023 at 4:01pm
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Were they 12 volt negative or positive ground? My own fault, robbed the battery for another and don't remember. ------------- 1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner) |
Replies:
Posted By: DrAllis
Date Posted: 18 Aug 2023 at 5:15pm
| From the factory with a generator??.....POSITIVE ground. |
Posted By: WF owner
Date Posted: 19 Aug 2023 at 6:38am
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You can check to see what it was before you removed the battery. A lot of them were changed from original positive ground to negative ground. If the wire going from the coil to the distributer is attached (through the switch) to the negative terminal, it is (as original) positive ground. If it has been changed to negative ground, the wire going to the distributer will positive pole of the battery. Changing from positive ground to negative ground is very easy. Just change the wires on the coil (so the opposite polarity is going to the distributer) and "flash" the generator.
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Posted By: jiminnd
Date Posted: 20 Aug 2023 at 11:39am
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It was converted to alternator, I am still confused, the negative from the coil goes to the distributer, does that tell you anything? ------------- 1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner) |
Posted By: DonDittmar
Date Posted: 21 Aug 2023 at 5:46am
Yes. It tells us the ignition system is set up NEG ground General rule of thumb-if you see an alternator its negative ground. Be careful with that rule, because an alternator can be taken apart and made to charge POS ground, however out of the box they are set up to charge NEG ground Generators will charge either without changing any parts, just have to reflash the VR Starters do not care ------------- Experience is a fancy name for past mistakes. "Great moments are born from great opportunity" 1968 D15D,1962 D19D Also 1965 Cub Loboy and 1958 JD 720 Diesel Pony Start |
jiminnd wrote:Posted By: Acdiesel
Date Posted: 21 Aug 2023 at 11:03am
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another quick tip: the positive and negative post on a battery are different sizes. unless someone changed the cable ends or put cheap bolt on cable ends, the negative is smaller than the positive. Dan ------------- D19 diesel,D17 diesel SER.3 D14 NF,D14 WF, D15 SER.II wf D15 SER.2 DIESEL,D15 ser.II nf D12 SER.I, D10 Ser.II 2-720'S Gmc,caterpillar I'm a pharmacist (farm assist) with a PHD (post hole digger) |