Update on my dumb clutch (Go kart running!)

[Zeptra]

Update on my "dumb clutch" Okay, so I now know that my clutch is a Torque converter type. It is known as the lock up clutch. Still a few questions though. I know my go kart is not suposed to take off when I try to pull start it, so what is the problem there. Also My engine is at a constant rev while I drive it (I push it to start it), instead of one continous sound. I am thinking it is a bad carb and I need a rebuild kit but I don't want to throw out money on something I don't need. bad converter, bad carb, or is it all good maybe? Also, my go kart is a Hammer Head 80T

http://www.youtube.com/watch?v=pptnRGTH_XA&feature=related

I don't believe my go karts converter action is working like this, it is just staying on the clutch, not switching in between coasting and giving it gas.

 

[Doc Sprocket]

It is known as the lock up clutch.

You were misinformed. Nobody I know calls it that.
Anyhow, if that is your model of CVT, that's fine. Ensure that you have the correct belt. If it's even slightly too small, it won't function properly. Secondly, study Blazkowiez's thread (sorry if I misspelled your name, Blaz), on maintaing your torque convertor. You probably need a good cleaning if the belt is right and it's stuck at one fixed ratio.
http://www.diygokarts.com/vb/showthread.php?t=7332

 

[Blazkowiez]

Don't worry about my name. If you're wondering its from the game Wolfenstein 3D (the main character is named B.J. Blazkowicz. (was taken for gmail during beta testing so I changed one letter) Sa'll good.

On a Hammer 80t it says it runs a 6.5hp motor with a CVT, typically on these systems the belt necessary is a 203589 or 203590, measure the distance on the clutches and the driven to discover which you need.

 

[Zeptra]

You were misinformed. Nobody I know calls it that.
Anyhow, if that is your model of CVT, that's fine. Ensure that you have the correct belt. If it's even slightly too small, it won't function properly. Secondly, study Blazkowiez's thread (sorry if I misspelled your name, Blaz), on maintaing your torque convertor. You probably need a good cleaning if the belt is right and it's stuck at one fixed ratio.
http://www.diygokarts.com/vb/showthread.php?t=7332

Thanks. They are known as the lock up clutch because when it stalls it is an almost immediate stop to keep the kart from crashing. Thanks again, I will most definatley check this out right now.

 

[Zeptra]

Don't worry about my name. If you're wondering its from the game Wolfenstein 3D (the main character is named B.J. Blazkowicz. (was taken for gmail during beta testing so I changed one letter) Sa'll good.

On a Hammer 80t it says it runs a 6.5hp motor with a CVT, typically on these systems the belt necessary is a 203589 or 203590, measure the distance on the clutches and the driven to discover which you need.

Awsome! Thanks, the belt I know for sure is right, it is the 89 model.

 

[Blazkowiez]

Who have you known to call this a lock-up clutch? I've never heard that before, period.

 

[Zeptra]

Who have you known to call this a lock-up clutch? I've never heard that before, period.

Different people, mainly mechanics. By the way, I have Wolfstein 3d for my emulator on my pen drive.

 

[Doc Sprocket]

Dunno what country you're in, but that "lock up clutch" is definately not a north american term. Never heard our Aussie or EU members use it, either. And I have no idea what you mean about locking up, stalling, or crashing. I've been using my Comet 40 for two years now, lots of use, and it performs like every other CVT on the planet. Acts like an automatic clutch, combined with an infinately variable power transmission. I think maybe you or your mechanic friends have the term confused with the automotive "Locking Torque Convertor", which is the fluid driven clutch portion of an automatic transmission as used in cars and trucks, and are often categorized by stall speed.
I assure you this has absolutely nothing to do with our CVT's, TAV's, Torq-A-Vertors, or the like that we karters use.

 

[Kaptain Krunch]

Different people, mainly mechanics. By the way, I have Wolfstein 3d for my emulator on my pen drive.

Lock up clutch would make absolutely no sense. All clutches should lock up, a torque converter however is a special type of clutch, which acts also as a CVT (constantly variable transmission).

 

[Zeptra]

Dunno what country you're in, but that "lock up clutch" is definately not a north american term. Never heard our Aussie or EU members use it, either. And I have no idea what you mean about locking up, stalling, or crashing. I've been using my Comet 40 for two years now, lots of use, and it performs like every other CVT on the planet. Acts like an automatic clutch, combined with an infinately variable power transmission. I think maybe you or your mechanic friends have the term confused with the automotive "Locking Torque Convertor", which is the fluid driven clutch portion of an automatic transmission as used in cars and trucks, and are often categorized by stall speed.
I assure you this has absolutely nothing to do with our CVT's, TAV's, Torq-A-Vertors, or the like that we karters use.

Yes you are right, that is what they are reffering to. Well we know what is wrong now, with the kart anyways.

 

[The_Machine]

yeah locking torque converters are used in some automatic transmissions. they lock together mechanically once you are up to a cruising speed to increase efficiency

 

[Zeptra]

Alright everybody. This is exaclty what my cvt runs like, even when I give it gas. However, I know that the belt isn't too long because I looked up the belt numbers and it works perfectly.

http://www.youtube.com/watch?v=CfRu4RjNzX8

 

[Doc Sprocket]

and it works perfectly.

So you fixed it? What was wrong?

 

[Zeptra]

So you fixed it? What was wrong?

unfortunatley not. In that video, see how the belt is just sitting on the fly weights. Well mine is doing that even when I give it gas, and it won't properly engage whenever It is given gas. I need to know how to get the cvt working properly.

 

[Doc Sprocket]

Well then, don't say it works perfectly. In fact, I'd say it doesn't work, period. Now- did you follow my advice (and my link) to Blaz's thread on CVT maintenance? I don't wanna come off like a jerk here, but when the answers are presented to you, and you don't act on them, some of us are less likely to hand out further advice.

 

[Zeptra]

Well then, don't say it works perfectly. In fact, I'd say it doesn't work, period. Now- did you follow my advice (and my link) to Blaz's thread on CVT maintenance? I don't wanna come off like a jerk here, but when the answers are presented to you, and you don't act on them, some of us are less likely to hand out further advice.

It is the furthest thing from running perfect. Also I did clean the drive clutch on the cvt, it didn't help. I am just going to purchase a new kit for it. When I said it works perfectly, I was talking about the size of the belt on the clutch.

 

[Blazkowiez]

I've had several customers tell me they cleaned the clutch. Try again.

 

[T-man]

its kind of strange that it wont engage, no mater how much gas you give it ... ?
yeah I'm with everyone else, clean it good ... with a tooth brush or dremil (sp) tool ... NO OILS should be used if you read through Blaz's post.
if you have a camera it would help. take it apart. put everything on some white pieces of paper and take some pics at differant angles.

 

[Doc Sprocket]

Tear it down again, then. Download an exploded view, check everything. Something's either out of place, missing, or jammed.