Cheap Chinese TC? / A lesson in rushing purchases.

[Thepartsguy]

Ahhhh crud I’m late anyways I have questions myself. You do have the jackshaft sleeve that stops the bearings from side loading when you crank the nut on each of the jackshaft tight?

The only local option I can give you is PA has tractor supply’s they have a hardware section with 3/4 standard and heavy duty axle spacers. I think they were $3 I would buy one and cut a small shim it buts up against the bearing and spaces the driven pulley from the bearing.

(As an example don’t cut down the actual parts you have) The parts circled in red cut a very small piece off the end and use as a CVT pulley spacer in between the bearing and CVT driven.

 

[Sparkwizard]

@ChristyBrinkley

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You be sure to let me know if that worked, OK?

 

[Squiddy202]

Ahhhh crud I’m late anyways I have questions myself. You do have the jackshaft sleeve that stops the bearings from side loading when you crank the nut on each of the jackshaft tight?

The only local option I can give you is PA has tractor supply’s they have a hardware section with 3/4 standard and heavy duty axle spacers. I think they were $3 I would buy one and cut a small shim it buts up against the bearing and spaces the driven pulley from the bearing.

The parts circled in red cut a very small piece off the end and use as a CVT pulley spacer in between the bearing and CVT driven.

View attachment 160378

Do I need to or does the solution that worked for the previous pulley work here?
Edit: I don’t know if I have it or not, I don’t know what that is. I have this:


I don’t actually know if I do need to change anything. That is what I am wondering.

 

[Thepartsguy]

Do I need to or does the solution that worked for the previous pulley work here?

The sleeve is on the axle inside of the jackshaft tube have you got the bearing out of either side of the jackshaft to see inside to see if there is a sleeve over the axle?

If there is not one I do not know how the bearings don‘t side load when you tighten the nuts on the jackshaft down. I only posted a picture of that 3/4 ID axle sleeve/spacer circled in red to show what you’re looking for at tractor supply. Just buy a short axle sleeve/spacer cut a small piece of the end off and use it as a pulley cvt spacer.

 

[Squiddy202]

The sleeve is on the axle inside of the jackshaft tube have you got the bearing out of either side of the jackshaft to see inside to see if there is a sleeve over the axle?

If there is not one I do not know how the bearings don‘t side load when you tighten the nuts on the jackshaft down. I only posted a picture of that 3/4 ID axle sleeve/spacer circled in red to show what you’re looking for at tractor supply. Just buy a short axle sleeve/spacer cut a small piece of the end off and use it as a pulley cvt spacer.

Well yeah but do I need to do that if there was a solution that worked beforehand? Could it have been something with the key? It didn’t seem like it.

 

[Thepartsguy]

Well yeah but do I need to do that if there was a solution that worked beforehand? Could it have been something with the key? It didn’t seem like it.

If you haven't gotten the jackshaft slid over a bit like you were talking about earlier and you haven’t got the bearings out or anything tore down I assume the sleeve is in there.

So if the sleeve is still in there like mine still was when I got the kart we don‘t have to worry about it. I was just wondering if you pulled it all apart and could say for sure there was not a sleeve in it.

You can’t just slam a couple washers up against the bearing and call it good. The correct and best way to do it is have the 3/4 sleeve inside the jackshaft in between each bearing and 3/4 sleeves on the outside spacing the sprocket or pulley away from the outside of the bearings.

 

[Sparkwizard]

There should be a sleeve on the jackshaft between the bearings, so you can tighten the nuts without putting a side load on the bearings.
You would need to remove a bearing from the shaft in order to see it. Your existing washer on the outside should work to keep the driven from hitting the bearing. You are both talking about different things.

 

[Squiddy202]

You are both talking about different things.

I was beginning to think that was the case… By sleeve I meant the tube, as my vocab on go-karts is basic.

 

[Sparkwizard]

I was beginning to think that was the case… By sleeve I meant the tube, as my vocab on go-karts is basic.

Got it, now? sleeve inside, washer or spacer outside the bearings?

 

[Thepartsguy]

I was beginning to think that was the case… By sleeve I meant the tube, as my vocab on go-karts is basic.

I brought up the sleeve inside the jackshaft. He probably had no idea about it and I assume it’s there. I was highlighting that sleeve to show a local tractor supply option of what to use outside of the bearings. He just needs to buy a very short $3 sleeve and cut a very small piece off the end.

He can slip the very small sleeve onto the axle and then slip the cvt driven pulley onto the axle. I just don’t think a washer is a good spacer between the bearing and CVT.

 

[Squiddy202]

I brought up the sleeve inside the jackshaft. He probably had no idea about it and I assume it’s there. I was highlighting that sleeve to show a local tractor supply option of what to use outside of the bearings. He just needs to buy a very short $3 sleeve and cut a very small piece off the end.

He can slip the very small sleeve onto the axle and then slip the cvt driven pulley onto the axle. I just don’t think a washer is a good spacer between the bearing and CVT.

What’s stopping me from using a normal washer that’s the right size? Wouldn’t whatever I use get pinched in between the CVT and the tube? Why not just use what is there? Sure the washer is thin but why not a thicker one? I am probably just going to assemble and see if it is truly nessacary.

 

[Sparkwizard]

There was a stack of washers on the other end...

 

[Squiddy202]

There was a stack of washers on the other end...

Those were for keeping the sprocket at the right point compared to the nut. I am talking about between the tube and the CVT pulley. All I want to know is how do I prevent he pulleys from rubbing against the tube. Dude said to use a tractor supply store thing, could I use a normal washer between the pulley/sprocket and the tube.

 

[Denny]

@Barbrera Eden, @Barbera Eden, @Barbera Eden, @Barbera Eden, @Barbera Eden, @I Dream Of Jeannie, @I Dream Of Jeannie, @Jeannie, @Jeannie, @Jeannie, @Jeannie!!!
One of those has to work, I just know it.

 

[Squiddy202]

Alright so this thread just became super depressing, what about the questions?

 

[Sparkwizard]

There should be a bearing between the tube and the driven assembly.
I believe that question was already answered.

 

[Squiddy202]

There should be a bearing between the tube and the driven assembly.
I believe that question was already answered.

Yes, however that wasn’t the question. What keeps what is on the shaft from getting too close to the tube. Originally it was a thin washer and parts said to cut a hunk out of tractor supply thing. What I don’t get is how that is different from a washer. Could I not just use one I already have? What makes it so that the washer already there does not work. I am very confused at the process being took even if I do use the harbor freight thing.

 

[Sparkwizard]

I think that washer should work. You might need an actual spacer in order to align your belt. What he was talking about was a small tube that slides over your 3/4 shaft, then is cut to the proper length. A washer would be large enough diameter to rub on the black grease seal on the side of the bearing. Don't worry about any of that spacer stuff until you get your parts.

The tube is inside, between right bearing and left bearing. Whatever is on the ends of the shaft cannot touch the tube.

 

[Squiddy202]

I think that washer should work. You might need an actual spacer in order to align your belt. What he was talking about was a small tube that slides over your 3/4 shaft, then is cut to the proper length. A washer would be large enough diameter to rub on the black grease seal on the side of the bearing. Don't worry about any of that spacer stuff until you get your parts.

The tube is inside, between right bearing and left bearing. Whatever is on the ends of the shaft cannot touch the tube.

Oh I thought the tube was the part that contains the shaft and is visible. So what I am getting from this is that the washer would rub the grease seal, not good. The other piece is thinner so that it only touches the inner washer ring. The spacer to align the belt I know, so then this only leaves the question why it was working previously while still using a washer that would rub the grease seal.
Edit: this is the previous setup: a thin washer.


I simply don’t understand as that one rubs the grease seal and works just fine. Basically, if it ain’t broke why fix it? I don’t understand why I need to change anything with that or why that worked as it would rub the grease seal.

 

[Squiddy202]

Oh I thought the tube was the part that contains the shaft and is visible. So what I am getting from this is that the washer would rub the grease seal, not good. The other piece is thinner so that it only touches the inner washer ring. The spacer to align the belt I know, so then this only leaves the question why it was working previously while still using a washer that would rub the grease seal.
Edit: this is the previous setup: a thin washer.

View attachment 160381View attachment 160382
I simply don’t understand as that one rubs the grease seal and works just fine. Basically, if it ain’t broke why fix it? I don’t understand why I need to change anything with that or why that worked as it would rub the grease seal.

I read poorly, you answered, but is rubbing the seal bad? The current washer seems to. It still works though.