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Old 07-19-2019, 06:17 AM
Bunyan Bunyan is offline
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Default comet 30 asmmetrical

I purchased a home made cart with this clutch system. Im having trouble to get it working properly. I have taken both clutches apart to clean and inspect. My problem is it still creep at low idle and Im wondering if the wrong belt is on this cart. I measured driven clutch at 6 1/4" and center to center at 6 3/4". Looking at the sizing charts it shows I need a comet 203589A, I have a 203589 installed, can someone tell me if these belts are the same and or should I be replacing the drive clutch or springs as that may be causing the creeeping?

---------- Post added at 07:17 AM ---------- Previous post was at 07:14 AM ----------

I was also reading that your not supposed to run the cart unloaded , as it isnt good for the drive clutch? is this true, if so, how does one test the clutch system.
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Old 07-19-2019, 07:05 AM
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So..
first: check if the belt is installed the right way around, just to be sure it's not flipped

Now that this is out of the way, what size Output shaft are you running?
is this a 3/4" shaft engine or a 1" shaft engine?

On a 3/4" shaft engine you want a brass bushing between the driver sheaves,
that lifts the belt ever so slightly to not drop too far in (and the edges to make contact and cause premature belt wear).

If you do not have that bushing (and a 3/4" shaft), buy one (you'll find it on mfgsupply.com for example)

On a 1" shaft it's not needed however.

And if you made it here, chances are your idle speed is way too high.
Engine idle should be set below 1500 rpm
And if you checked that as well (cheap tachs ($10) are available on ebay p.e.)

The clutch starts engaging at 1800 rpms stock with fresh garter springs.
(can be changed but let's assume 1800)
You might also have a sticky hub (that clover thingy inside the driver clutch)
deburr the edges if necessary and clean it up real good,
make sure it drops through the clutch (a light dusting with dry lube might help)
while being as snug as possible.

And the last thing to check is the afrementioned springs.
Once they start wearing, they start engaging a tad early..
so unhook them from the weights and
check if they snap back perfectly straight (they MUST!)
and if their length does not exceed 7 7/8"
(again replacements can be found on mfgsupply)

And if all that is checked and verified to be in order...
you will need to live with that ever so slightly creeping TC I'm afraid

an original Comet belt might fix that once you need to replace yours.

Now, testing:
No problem, just do not floor it when you test unloaded,
that might cause the buttons on the driven to fail.
idle and just over engagement speed (2000-2200 rpms) are fine,
unloaded the TC should snap all the way to overdrive immediately anyways, so you'll know it's working with just that

'sid
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Old 07-21-2019, 06:11 PM
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I do believe theres an idling issue as well. My question is, when carts sitting idling , does the drive clutch turn and the belt just stay stationary?
also is it possible to buy parts for clone engines? I have a 6.5 hp 3/4" shaft , Princess auto motor. I think some of the carburator linkage might be missing
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Old 07-21-2019, 09:33 PM
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The princess clones are pretty much the same, so ya, any clone carb parts will be fine..

Post some pics of what you have, kart ect..
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Old 07-22-2019, 07:29 PM
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where does one purchase these clone carb parts from?
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Old 07-22-2019, 09:27 PM
mckutzy mckutzy is offline
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Well jets/e-tubes can be sought at a tool rental/ lawn mower shop....
Ask if they have a junk bin of bits.. Typically they do..
Might cost you a few dollars..

Alot of this depends on how much you want to spend.... Unfortunately most other parts are comming from the states...
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Old 07-23-2019, 02:23 PM
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So I found one of the drive clutch springs broken and am thinking that may have resulted in the creeping/ premature belt grab. I think I will order a new clutch as i had to jam one of the 2 engagement pins back into the horse shoe collar with in the clutch. I would upload photos ,but my samsung phone wont let me log into the forum.

---------- Post added at 03:23 PM ---------- Previous post was at 03:05 PM ----------

I looked at mfgsupply and found this as I think this replaces mine
Part #: 219552A-W1. I need one that has a 3/16" keyslot. Does this look right?
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Old 07-24-2019, 12:07 AM
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Quote:
Originally Posted by Bunyan View Post
So I found one of the drive clutch springs broken and am thinking that may have resulted in the creeping/ premature belt grab. I think I will order a new clutch as i had to jam one of the 2 engagement pins back into the horse shoe collar with in the clutch. I would upload photos ,but my samsung phone wont let me log into the forum.

---------- Post added at 03:23 PM ---------- Previous post was at 03:05 PM ----------

I looked at mfgsupply and found this as I think this replaces mine
Part #: 219552A-W1. I need one that has a 3/16" keyslot. Does this look right?
Just buy replacement springs and buttons. No need to buy the whole drive clutch
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Old 07-24-2019, 01:12 AM
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Or the Chinese knockoff is less than $30 with free shipping.
https://www.ebay.com/itm/30-Series-T...-/361380970923
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