BigBlocked

There's been a few posts on here about premature wear of the clutch bell's bronze washer.

The problem:

The screw head holding the clutch bell on wears the bronze washer prematurely.

The cure:

Make sure your engagement of pinion to spur is square. If you're standing directly behind and above the truck, and the motor is cocked in the 1 o'clock direction, it will force the clutch bell to act like a nut. Thus trying to spin it's way off the shaft. If it's cocked in the other direction the clutch bell is trying to thread itself in towards the motor. Neither is good. Square is best!

HTH's

scale only 4 me

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What kit uses a bushing?

teamsquirreltail

The clutchbell uses a needle bearing, and then on the outside of the clutch theres a bushing. If the bushing is cocked, the screw will be tight. When the clutch spins, it will spin off the screw holding the bell on. Been there done that lol.

BigBlocked

Actually you're missing the point. If the motor is cocked the pinion to spur mesh isn't square. Thus forcing the clutch bell to..........

A. Walk off the shaft.
B. Walk in towards the motor.

This depends which way the motor is cocked.

G1GY

FIXED!

scale only 4 me

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We're talking about, Savage?

You know what it really doesn't matter; any bearing should not be rubbing against any bushing
I just look at the HPI web site for the manual, that’s a lame set up they have. If you had it set up perfectly straight it would still wear out. I wonder why they didn't use a 1/8th scale bell/flywheel set up. You wouldn't need that bushing. At the very least it should be a smaller diameter bushing.

The outer race should never come in contact with anything, only the inner race should be touching the washer. the outer part should only be touching the clutch bell. If the outer race it touching something of course it will wear quickly.

Another reason not to get one, Thanks for the warning

BigBlocked

You also missed the point.

It's not the bearing race that rubs on the bronze washer....

scale only 4 me

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Okay, I see, the screw is rubbing the bushing, what ever
You miss my point, nothing should be rubbing anywhere

BigBlocked

I too understand, (nothing should be rubbing anywhere). Is there a nitro engine who's clutch bell bearings only contact the bell and the output shaft?

scale only 4 me

My Feedback: (158)

Every 1/8th scale clutch bell set up I've ever seen works without a bushing, they only have the small diammiter washer that contacts the inner race(non rotating) part of the bearing. Your real problem isn't the washer/bushing. It's the bearing touching the bushing in turn turning the bushing against the washer

I see two solutuions using that stock flywheel/clutch bell

1-Instead of having that big 5x10x3mm brass bushing it should have a 5x8x3mm, that way it doesn't contact the outer(rotating) part of the bearing. it will spin at the same rate as the washer/shaft.

2-would be for you to change that bushing to a same size bearing, that way the inner race would contact the washer and the outer race could spin freely with the clutch bell bearing.

From what I can see the bushing is just a spacer, why they designed it that way I can't figure.
That part shouldn't be wearing out at all.

I didn't intend to get into a Bash the Savage discusion, but that's a bad design

Good luck