For the nitro guys, problems with clutch bell, engine too far forward? - RC-Monster Forums

Krawlin

I have a Mugen MBX5-T with a Picco P3-28, and I am having some gear mesh, or better said "clutch bell position" issues. I can get the gear mesh set properly, however the spur/clutch bell teeth mating position is off. Basically, the engine sits too far forward, and the spur gear has a couple millimeters of the teeth not contacting the clutch bell, and the spur is very close to the bell itself. I am using a BCE chassis, and I dremel'd it a bit to move the motor mount back some, but it hardly helped. I also have to clutch bell shimmed as close to the flywheel as it can be without rubbing the flywheel pins. Anyway, the biggest problem about this is that it's starting to mess up the teeth on the clutch bell and spur gear. I cant seem to find a clutch bell that has the teeth machined right against the bell, which I think would almost solve my problem. Do Picco's just have a long crank and I would be better off to switch engines? Has anyone else had this problem? How did you fix it? And does anyone know of a company that makes an adjustable motor mount (allowing the engine to slide forward or backward) for the MBX5-T, or a motor mount that is adjustable from another vehicle that uses the same hole pattern that the chassis has? (I tried my OFNA ones and they don't work)

Anyway, thanks for any suggestions or help!

shaunjohnson · 10.02.2009, 05:54 PM

well apart from the fact that there isnt a lipo or MMM combo in there...

i had this problem on my RC8B.
i actually removed the engine mount and drilled and taped some completely new holes.
some engines just arnt ment for some cars.
but just try and find yourself a tap and drill to match the threads of the engine mount screws.

brushlessboy16 · 10.02.2009, 10:17 PM

take shims out from behind the clutch bearings

Krawlin · 02:29 AM

Quote:

Originally Posted by brushlessboy16

take shims out from behind the clutch bearings

Quote:

Originally Posted by Krawlin

I also have to clutch bell shimmed as close to the flywheel as it can be without rubbing the flywheel pins.

Already did.

George16 · 10.03.2009, 12:14 AM

Try Kyosho narrow clutch bells. The gear teeth are closer to the bell itself compared to the muger orother clutch bells. Its what I use on my bb supermaxx and Revo with .18TZ.

jayjay283 · 10.03.2009, 02:17 AM

There ya go Krawlin, your nitro answer. You are aware there is a "general nitro" section here for the 99% of us that dont want to read nitro dribble. BTW real nice attitude to potential help from members on a brushless forum :eye roll:

Krawlin · 10.03.2009, 02:31 AM

Quote:

Originally Posted by jayjay283

There ya go Krawlin, your nitro answer. You are aware there is a "general nitro" section here for the 99% of us that dont want to read nitro dribble. BTW real nice attitude to potential help from members on a brushless forum :eye roll:

That section doesn't get noticed very much, I get a much faster response in general. And if you don't want to read it, then don't even click the thread, it's that simple.

Edited the post, happy now?

To George16- With the Kyosho clutch bells, is the actual bell narrower too or is it a standard width bell?

George16 · 10.03.2009, 03:46 AM

I don't have any more of my Mugen and HPI cb to compare with but here's a comparison pic with a revo mod 1 cb.

Bondonutz · 10.03.2009, 09:48 AM

Check "RacersEdge" clutch bells.

Krawlin · 10.03.2009, 10:13 AM

Quote:

Originally Posted by George16

I don't have any more of my Mugen and HPI cb to compare with but here's a comparison pic with a revo mod 1 cb.

So that would be the Kyosho bell on the engine? Looks like it might work for me, I will look into those some more.

Quote:

Originally Posted by Bondonutz

Check "RacersEdge" clutch bells.

I have been looking at them on A-Main but I cant seem to find a side picture of one. I take it the teeth on them are cut alot closer to the bell?

brushlessboy16 · 10.03.2009, 10:19 AM

Looks like its just because of the angle the picture was taken at.

George16 · 10.03.2009, 11:12 AM

Quote:

Originally Posted by brushlessboy16

Looks like its just because of the angle the picture was taken at.

Here's another pic:

jayjay283 · 10.03.2009, 06:14 PM

Quote:

Originally Posted by Krawlin

That section doesn't get noticed very much, I get a much faster response in general. And if you don't want to read it, then don't even click the thread, it's that simple.

lol touche' , no offense I hope keep on keepin on, stink burner

RCShocker · 10.04.2009, 08:48 AM

Quote:

Originally Posted by jayjay283

lol touche' , no offense I hope keep on keepin on, stink burner

He's obviously read...............

And I'll just leave it at that.