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Primary Clutch

1026 Views 24 Replies 8 Participants Last post by  BADREV600
Just started putting my primary clutch back together lastnight after some weight adjustments. To my horror, beneath the black ring of scum near the shaft, was a groove on both faces of the sheaves. Took some heavy duty degreaser and a bit of 400grit sandpaper to clean it up as much as possible. Still feel slight groove on both sides, real low on the sheaves. I'm guessing thats where the belt sits near inital engagment and did run extended periods of time with incorrect belt the season before last. Did i doo this, and how? I remember a similar post last week about secondary that was chewed up, does doo use crappy metal or what. My clutches always run cool to the touch with the stock belt, how can rubber groove steel?!?!
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Cause debris can get caught in the rubber.................
Yep... Had a buddy that had a bolt come loose, and in now time at all his primary faces were pitted up worse than the moon.
2
Good point Fan Girl, hate when that happens!
No bolts loose here, did tow some people and Ice shacks though, think that did it? My question is how will this affect my clutching? It's soooo low on the sheave faces that i'm hoping it won't even be a factor speed wise since the belt will be riding well above that at most speeds. Bet those parts are expensive, shouldn't be replacing a clutch at 2400mi!
Anyone see problems in running this way....
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Do you mean this?



Then read this...

"Galling" Link....
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So is there any fix for this type of situation?
WOW, good link or maybe bad link? I'm all about speed joe and now am frustrated that i intentionally caused the galling by giving my primary more belt squeeze! I'm at a 47-44 helix and stock 03 600HO spring(secondary). What will be the best helix/spring combo to regain my lost MPH and return to 0.83 shift land?
3
The Problem


Both CLutches Primary and Secondary hurt BAD



My solution was to take it back and have it fixed under warranty.....
Got a whole brand new clutch system........ YAYYYYYYYYYYYYYYYYYYYYY

Good Luck
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*FAN~GIRL* said:
Cause debris can get caught in the rubber.................
[snapback]911903[/snapback]​
I thought maybe your mind was in the gutter.........again......
BADREV600 said:
WOW, good link or maybe bad link? I'm all about speed joe and now am frustrated that i intentionally caused the galling by giving my primary more belt squeeze! I'm at a 47-44 helix and stock 03 600HO spring(secondary). What will be the best helix/spring combo to regain my lost MPH and return to 0.83 shift land?
[snapback]911942[/snapback]​
you didnt cause this by too much belt squeeeze. i have this same groove you are talking about it is caused by the belt rubbing at idle. maybe your deflection is a little too tight. i dont think its much to worry about. to regain your lost mph, look at the primary instead of the secondary.
f7eater said:
BADREV600 said:
WOW, good link or maybe bad link? I'm all about speed joe and now am frustrated that i intentionally caused the galling by giving my primary more belt squeeze! I'm at a 47-44 helix and stock 03 600HO spring(secondary). What will be the best helix/spring combo to regain my lost MPH and return to 0.83 shift land?
[snapback]911942[/snapback]​
you didnt cause this by too much belt squeeeze. i have this same groove you are talking about it is caused by the belt rubbing at idle. maybe your deflection is a little too tight. i dont think its much to worry about. to regain your lost mph, look at the primary instead of the secondary.
[snapback]911973[/snapback]​
Not correct man, read that link joey posted and you'll see my concerns.
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Superman said:
*FAN~GIRL* said:
Cause debris can get caught in the rubber.................
[snapback]911903[/snapback]​
I thought maybe your mind was in the gutter.........again......
[snapback]911947[/snapback]​
BTW... is fan girl hott?
All I wanted to do at one time was find out how this was happening.

***I ended up looking at it this way; It did not bother anything yesterday, it prolly won't today and I doubt it would tomorrow.***
I just ignore it.
Dynamo^Joe said:
All I wanted to do at one time was find out how this was happening.

***I ended up looking at it this way; It did not bother anything yesterday, it prolly won't today and I doubt it would tomorrow.***
I just ignore it.
[snapback]912061[/snapback]​
Yeah but that link and the posts there told the story about the secondary problems. I'm at WOT like 24/7/365 and don't want anything stealing my speed or generating heat. Am i oversimplifying by assuming a helix or spring change will solve this?
BADREV600 said:
Superman said:
*FAN~GIRL* said:
Cause debris can get caught in the rubber.................
[snapback]911903[/snapback]​
I thought maybe your mind was in the gutter.........again......
[snapback]911947[/snapback]​
BTW... is fan girl hott?
[snapback]912055[/snapback]​
Ask Robin
BADREV600 said:
Dynamo^Joe said:
All I wanted to do at one time was find out how this was happening.

***I ended up looking at it this way; It did not bother anything yesterday, it prolly won't today and I doubt it would tomorrow.***
I just ignore it.
[snapback]912061[/snapback]​
Yeah but that link and the posts there told the story about the secondary problems. I'm at WOT like 24/7/365 and don't want anything stealing my speed or generating heat. Am i oversimplifying by assuming a helix or spring change will solve this?
[snapback]912067[/snapback]​
There are secondary springs from Erlandson/Goodwin that offer higher final forces than any of the Doo /300 lbs springs. Can try that avenue for higher belt clamp.
Dynamo^Joe said:
BADREV600 said:
Dynamo^Joe said:
All I wanted to do at one time was find out how this was happening.

***I ended up looking at it this way; It did not bother anything yesterday, it prolly won't today and I doubt it would tomorrow.***
I just ignore it.
[snapback]912061[/snapback]​
Yeah but that link and the posts there told the story about the secondary problems. I'm at WOT like 24/7/365 and don't want anything stealing my speed or generating heat. Am i oversimplifying by assuming a helix or spring change will solve this?
[snapback]912067[/snapback]​
There are secondary springs from Erlandson/Goodwin that offer higher final forces than any of the Doo /300 lbs springs. Can try that avenue for higher belt clamp.
[snapback]912099[/snapback]​
Is that as specific as you wanna get? Most springs with higher finals seem to have higher initals, which i'm not crazy about for upshift reasons...
explain your "upshift reasons"
what do you not like?
Dynamo^Joe said:
explain your "upshift reasons"
what do you not like?
[snapback]912116[/snapback]​
The though is from an earlier post about how to setup my clutching to take advantage of my new HP from summer mods. The gains have now surpassed 10hp and at least 6tq. That thread was responded to by lots of folks including you telling me not to change anything until i can test and listen to what my sled tells me. Some of the replies focused on the secondary spring choices and it was stated by two doo talkers that to achieve the quickest flash to top rpm and hence quickest upshift, the softer inital rate the better. Worse for backshift but better for drags. So you see, it appears i need one thing at the beginning and something else as i approach 1:1 and beyond. To my knowledge, there's not a spring out there with a 180 inital and like 360 final? Does that mean helix needs to go...
No Im not so you dont need to be distracted.... carry on with the clutch talk
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