Roxanne - budget milano/75 track car

[AR4me]

Inside the transaxle At last track event I had someone roll halfway under there right after pulling off the track. His feeling was that it came from the transaxle itself... The dependency on both temperature and clutch load seems to indicate bearing? No? Could it be a marginal bearing that with play causes other things to touch when nice and warm and the load (from pressing the clutch) changes?
Jes

[Craig]

Quote:

Originally Posted by AR4me Inside the transaxle. At last track event I had someone roll halfway under there right after pulling off the track. His feeling was that it came from the transaxle itself...

[75evo]

Could be something in the clutch housing.

[AR4me]

Quote:

I think any bearing making that sort of noise would have self destructed by now.

[75evo]

oooh 4-puck clutch.... is it sprung or not? Is it hard to drive on the street?

[AR4me]

You can drive it on the street, but I don't see why - no limo take offs. I would get something like the 8 puck CF from performatek for street use if the engine power makes the stock clutch impractical.
Jes

[AR4me]

Ok, I found something that could be the source of the ringing noise. If you look at the exploded picture below and focus on the area of the fork. Look for part #20, the "spherical pin". You'll see a washer between the spherical pin and the housing. I'm pretty sure I can rotate that washer with my fingers through the opening for the fork I'm sure it should be tight. I will see if I can get a tool on the sperical pin through the fork opening and tighten it.

What do you guys think? Sounds plausible?

BTW, Craig, your site is an excellent resource.

Jes

[Craig]

Thanks Jes,

Plausible? yes.

I assume it's dry and rattles freely?

[AR4me]

Dry? Yes. Rattles freely? Hard to tell. I could barely get a finger on it, and rotate it. When the fork pivots around the spherical pin the load changes and perhaps, if a bit loose, it will rattle freely. It is somewhat hypothetical. Though, I just had Colin look at a transmission we have apart in his garage, and he could actually loosen the spherical pin by hand Is that normal?

Anyway, I will see if I can tighten it through the opening for the fork, without disconnecting anything. Though, the fork may put load on it, making turning the it difficult... Also, the fork may obstruct access to turning the pin through the opening. I would then have to disable the clutch slave and remove the fork. If that isn't enough, I guess I will have to remove the clutch cover and clutch.

Jes

[75evo]

The thing is I already have a 4-puck bought a long time ago. Does it just take some getting use too? Is it difficult to modulate?

I am thinking of a lightweight rear flywheel as well.

[AR4me]

You'll get used to it, but it is somewhat on or off. Slow engagement will cause chatter.
Jes

[75evo]

Well I guess I need to sell it then. I wonder if Fortis would be interested .

[AR4me]

He might be. I'll ask him.

Though, you only notice the on-off thing (and chatter) when starting from a dead standstill.

Jes

[Grant]

Jes, is yours sprung? I think Zamani's is a sprung 4 puck, and those don't seem to be quite as bad.

[DaveH]

Jes,

It seems like more noise than that small washer would make.

My vote is with the clutch/throwout bearing.

Great thread by the way - I've been following closely!

Dave