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gear set, 4th gear hub, channel plate gouged! help!

kawasaki22106

kawasaki22106

New member
OK so i tore my trans apart today and found one of my thrust washers was trashed between the gear and channel plate, my 4th gear hub was rubbing the chain gear. Both gears have some rash on them from this and the 4th gear hub has rash on it and also the channel plate. Any ideas on what caused this?!?! The chain and gear set was a 7/8th 2.93 ratio.....

channel plate
transdamage_zps850588a3.jpg


4th gear hub
transdamage_zps8211dda7.jpg


drive gear (this is where the bushing was trashed) i removed the retainer clip, it was installed.
transdamage_zps1dbfe26a.jpg


driven gear
transdamage_zps1a88c36c.jpg
 
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Edit...I take that back. If that pic was taken how you found everything there is a chance that with the bushing being destroyed on the drive gear that it has cause the driven gear to "walk" toward the driver side of the car causing some issues. Still wouldn't explain the interference between driven sprocket and 4th clutch hub.

As far as the bushing that goes between the drive gear and channel plate I am going to have to stick with installation error. Did you even find remnants of the bushing? was is ever put in the trans? Without it, it's going to cause damage just like you have pictured.

Additional Edit....Where is the drive sprocket retainer clip that holds the sprocket in place on the input shaft?
 
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i found everything gouged like this when i pulled the channel plate off. i removed the retainer clip it was installed, and yes i found remenance of the bushing so it was installed but decided it didnt want to be in there any more and committed suicide lol

btw this was a tim king trans with only 1600 miles on it :(
 
Hi John...

Drive gear bushing IIRC is plastic. Pat said you guys found pieces of it, so it had been there at some point. If there wasn't enough trans goo on it to hold, it may have gotten mashed upon install. Unless the welds on the reluctor tore it up over time, tough for that to happen if the pin heads don't usually hurt it.


4th hub to gear. Should not be possible with the plastic bushing there. Put them together outside of the trans and see if they hit. I bet they don't. Which means they must have gone in looking like that.
 
The bushing that goes in between the channel plate and drive gear is known to fall out of place during installation if you're not paying attention. I always use a big goop of petroleum jelly to make sure that the bushing stays oriented and in place during installation. If it was out of place or not seeded properly the bearing would have been destroyed shortly after first start up.

Were the sprockets also purchased from Tim King. Because with the additional information about having the drive sprocket retainer clip in place they only way that I would see that the driven gear would have interference with the 4th clutch hub would be an issue with the specifications for the machining of the sprocket for the 4T65E application.

No comment on Tim King.....other than I will never do business with him.
 
no i purchased the chain and gear set from zzp and gave it to him. my trans had a hardened 4th gear hub from factory so he reused it.
 


Your driven gear is not machined properly IMO....Here are a couple pic for reference as to what it should look like. Notice that your spocket has a ridge right in the area where you are having the interferrence issue.

DSCN0326_zps2be3b508.jpg

20130315_204307_LLS_zps934c34cf.jpg
 
Pic was stolen from the internet. Just showing the example of what the driven sprocket machine surface was supposed to look like.
 
Use the outer set of holes as a reference point. On your ZZP high quality part..that bevel is right at the hole. On the other pic...it's been machined much further back
 


In between the red lines you'll see that there is an extra ridge that should have been removed during the machining process. Which is exactly where the 4th clutch hub is rubbing on the driven sprocket. Green circles are what you should reference as far as the distance it should have been machined.
comparison_zpsc573010a.jpg
 
time to head to the garage and look at my 1" chain/gears and compare..... i am gonna check and see if the 4th gear hub is hitting as well like bill said so see if it happened now or was from earlier wear that tim didnt tell me about....
 
there is clearance issues there for sure, my 1" gear fits fine but the 7/8ths rubs. so that explains the 4th gear hub but would this cause the drive gear to grenade the bushing and rub the channel plate? and is my 4th gear hub reusable or should i buy another one.....
 


Cause of the bushing to rub on the channel plate is going to be cause by install error IMO. If it falls out of place or is crushed during the install the bushing wont last 10 miles.

Replace the 4th clutc hub. You're talking about a huge turbo build with a 1" GMR chain........why cheap out on a part you get can get new for $35.
 
I say keep the 4th hub. Nothing ever touches it where you have that "mark" on it. It's not a structural or strength probably from the mark on it. Call it a character mark.
 
Fine Bill....keep it in there....How do the splines look on the other side of the 4th clutch hub. If there is signs of wear, for sure replace it.
 
no signes of wear on the splines, take note to the close up pic of the 4th hub teeth though, i never seen one in person till now do they look ok? to me it looks like they got little marks in them but the marks are all uniform on every tooth....
 
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