Space behind primary?

[Soupy]

Pic attached. Could someone possibly measure for me the amount of space behind their primary like in my pic? Clutch heat on my sled seems to be coming from the primary sheave next to the engine, just want to ensure I have the proper clearance. Mine measures 1/8. Thank you.

 

[lakercr]

 

[lakercr]

We're .060 apart, but that's with me measuring to the back of the primary. It looks like you're taking a measurment from the leading edge of the bevel, so 1/8" is probably a bit fat. Either way, this isn't your problem...

 

[Soupy]

.

 

[Soupy]

Thank you, this might be my heat problem. Attached pic shows damage on the back side of my primary from it hitting the 4 bolts. Clutch has been retorqued to updated specs.

 

[Soupy]

We're .060 apart, but that's with me measuring to the back of the primary. It looks like you're taking a measurment from the leading edge of the bevel, so 1/8" is probably a bit fat. Either way, this isn't your problem...

I agree that my measurement was fat. In my opinion this could reduce the clutches ability to cool off significantly.

 

[lakercr]

I'm going to disagree, pending a compelling argument. I'd encourage you to look further if you're having issues with heat in your clutch.

Is this a stock setup?

 

[KnappAttack]

Thank you, this might be my heat problem. Attached pic shows damage on the back side of my primary from it hitting the 4 bolts. Clutch has been retorqued to updated specs.

I'd wonder if that post has grown and is on the shaft further than it should be. And if that post has grown, the movable would stick on the shaft when warm and bind not shifting properly because of tight bushing to shaft clearance. That WILL BLOW BELTS ALL DAY LONG and run super hot too!

That clutch needs to be warrantied!!! I think you have found the problem. Not that is sits closer to the engine, (it would however throw off the shimming) but IMO that shaft has to have expanded to sit on the shaft that much further and be binding on the movable bushing.

 

[**sj**]

I removed those four bolts from jump...... Bearing keeper/output shaft

 

[lakercr]

Keep in mind, that thing we're both measuring off is the water pump. It's probably never going to be more than~200f, and then you've got to radiate that heat across an air gap to the sheave of your clutch. Have you measured your clutch offset? if the fixed sheave is inboard more than it should be, it will show up in your offset measurement.

 

[Soupy]

Keep in mind, that thing we're both measuring off is the water pump. It's probably never going to be more than~200f, and then you've got to radiate that heat across an air gap to the sheave of your clutch. Have you measured your clutch offset? if the fixed sheave is inboard more than it should be, it will show up in your offset measurement.

Offset, c to c, parallelism, springs, helixes, bushings, rollers, tried 2 diff clutches & 3 diff secondaries, the list goes on. I've blown 13-14 belts in 2200 miles.

 

[lakercr]

Checked your motor mounts?

 

[Soupy]

Checked your motor mounts?

Yes. Been blowing belts since new. I rode it for 5 mins today, no more than 40 mph, mostly 5-10 mph and the inner half of the belt and inner secondary sheave were both heating up much more than anything else. Engine wasn't even warmed up.

 

[Doc Harley]

Glad you're on to something!

 

[GlennM]

I removed those four bolts from jump...... Bearing keeper/output shaft

What do you mean by that

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