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Post by kd7iwp on Apr 20, 2010 8:40:10 GMT -5
I just bought an ecvt justy '91 that doesn't really move, it will be a project car for me, and to learn more about CVT's. Anyway, I put in a set of brushes that still have some life, but I want to inspect the sliprings and can't get them to turn. I rotated the engine with a wrench and moved the car fore and aft on the ground by pushing it but neither scenario rotated the rings. My guess is the engine needs to be on so that there is hydraulic pressure in the transmission to tighten the drive belt and rotate the rings. Is this correct? Also, my clutch resistance is about 2.8 ohms, can anyone else verify for me that this is a correct value? Thanks.
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Post by lowryde on Apr 20, 2010 22:32:47 GMT -5
its posable that the oil pump drive shaft has backed out of the pump into the flex plate hapend to my bosses 2x till it finaly died of low oil pressure
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Post by kd7iwp on Apr 21, 2010 23:14:52 GMT -5
Thanks for the reply but I believe oil problems aren't present. The engine runs great, the car just won't move when in gear. If I jack up the front wheels they will spin. But I want to rotate the sliprings with the engine off so that I can inspect them through the hole in the bell housing where the brushes go. To look through there the starter can't be on the car, so engine must be off.
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Post by nipper on Apr 30, 2010 19:48:35 GMT -5
I am not fully versed in the CVT (but i am learning). Lets try something. Since one half of the clutch is connected to the engine, and the other half is connected to the transmission, why not try pusing the car a few feet just to see if it moves. There is nothing in the FSM about inspecting these, but it sounds like, even though the car can not be push started, that this should work.
Worth a try.
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Post by Justy4x4 on Apr 30, 2010 20:47:48 GMT -5
This is really easy to check. The slip rings turn with the engine. Just stick a 17mm socket with extension on the front crank bolt and spin the engine over. There should be a hole in the chassis to allow access to the crank bolt from the wheel well.
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Post by Justy4x4 on May 1, 2010 15:12:04 GMT -5
This is really easy to check. The slip rings turn with the engine. Just stick a 17mm socket with extension on the front crank bolt and spin the engine over. There should be a hole in the chassis to allow access to the crank bolt from the wheel well. I forgot to mention the transmission needs to be in neutral for this to work. The input shaft and slip rings spin freely when in neutral and will turn with the engine due to the small amount of internal friction in the clutch bearings. At least it has always worked for me.
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Post by kd7iwp on May 5, 2010 13:50:43 GMT -5
Hmmmm... I'll give it a try in neutral. I already tried rotating the engine with a socket but had no luck with the rings, I did have the wheels off the ground. Can't remember if it was actually in neutral or not, I figured that wouldn't matter since it's all electronic anyways, but will give it a try. Thanks for the suggestion.
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Post by lowryde on May 5, 2010 22:43:21 GMT -5
the oil pump drive shaft is in the tranny it eats into the flex plate then the car doesn't drive cuz thers no oil pressure to control belt pressure IN THE TRANNY
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Post by kd7iwp on May 6, 2010 11:10:56 GMT -5
You guys were right, I had to put the transmission in neutral. I guess I was thinking that the transmission selector was simply an electronic switch, forgetting that there is actually a cable going into the top of the tranny. The sliprings looked nice and shiny.
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