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#1
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I rewired the whole tractor - 12ga stranded - leaving only the battery cables since they appeared to be in good condition with good continuity.
I replaced the battery and the s/g turned better than it has in a long time - faster/harder ![]() Initially I noticed the ammeter was indicating a charge and I was very excited; but I am not so smart and had connected the ammeter backwards. After correctly wiring the ammeter and replacing the battery - still no charge. So I went to bed last night and thought about verifying the ground on the v/r and polarizing the generator - so this morning I replaced the ground wire and started the tractor. I then took a jumper from the A terminal on the generator to the Batt terminal on the v/r - I got a small spark as expected but still no charge. I accomplished this several (3 or 4) times but still nothing. Only question - should I leave the jumper for more than a split second or just long enough to get a spark? Pics attached of the wiring and the insides of the V/R - the points in the v/r move freely by hand - but with the engine running I don't see any movement. Any suggestions? Replace v/r? It looks good but I don't know how old it is or if it working. Thanks a ton! |
#2
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"IF" your harness is correct and wired correctly, did you check here...??... S/G Test
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[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1: |
#3
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Follow Roland's test procedures as stated above and double check to be wired correctly, sounds like you did, just make sure. Check your grounds for clean and tightness.
If s/g passes, read up on adjustments to the v/r itself. It has a normally open and normally closed set of tips inside that one set are adjustable, make sure that the tips are not pitted and corroded. Good luck and keep us posted.
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(2) Original, 100, 102, 124, 73, 800, #1 and #2 cart, brinly plows, disk, IH184, IH244, 1948 F Cub |
#4
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Been a lonnnnng while since I worked on a mechanical V/R, but I do seem to sort of very vaguely remember that the contacts on V/R's would sometimes corrode/oxidize so that there was not good continuity, or sometimes would even stick. A very fine points file/relay contact burnish tool may fix that for you.
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Only thing better than having a Cub Cadet is USING one ![]() ![]() |
#5
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V/R is bad. Started tractor and ran it at half throttle, grounded the F terminal and BINGO the ammeter pegged at full charge and a resulting drop in RPM due to the load on the engine.
I'm a smarter man...Thanks for the help on this topic. More to come I'm sure. ![]() |
#6
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Verify the ground to the VR is good before you replace it.
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#7
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Just before I did this test I replaced the ground on the v/r. One other post said there are adjustments to make on the v/r so I found a delco remy publication on troubleshooting and making adjustments to the v/r....I'm not smart enough to decipher what that meant.
![]() If anyone has any suggestions on adjustments for the v/r I'm all ears. I have bought a new one in the meantime but it hasn't arrived yet so I will try cleaning the contacts but not sure what else to do. ' Thanks for all the posts. J Rob |
#8
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Turned out it was the V/R.
Bought the new V/R from NAPA and it has 3 terminals on one side and a 4th terminal on the underneath / bottom side. I initially didn't realize the bottom terminal was the GEN terminal and grounded it. I plugged the Armature wire to the L(oad) terminal, the BAT to the BAT and the F(ield) to the F terminal. When I connected the battery....sparks. I did some more reading and realized the terminal on the bottom was the GEN. I also realized that this new v/r grounds to the mounting bracket, so I attached the ground wire to the mounting bracket and ground to bare metal just under the mounting bracket for good contact. After all wires were connected properly - Charging on the ammeter. ![]() Voltmeter to the Armature on the generator read 13.5 V. turns out the old v/r was in worse shape than I thought - very happy this is charging now - |
#9
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Can you share that part number? Is it a VR896?
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(2) Original, 100, 102, 124, 73, 800, #1 and #2 cart, brinly plows, disk, IH184, IH244, 1948 F Cub |
#10
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VR896 is the NAPA Cross Reference for the Cub Cadet V/R.
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[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1: |
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