Durability of Nutech clutch bells.

[mynameismud76]

Just curious, how many tanks have you put through your Nutech clutch bell.

Please state what type of clutch spring, engine and clutch bell (vented or stock) you've used. =)

I've broke two in two days, all with in the same tank. Broke the vented yesterday, and then broke the stock one today.

The vented one broke where it's welded to the bell, and stock broke in the shaft. :damn:

[Pipeous]

my on road has seen much more use than the off road. I do see some discoloration on the stock gt5r bell where the shaft meets the main body but no probs. can't comment on the tb2 as I have maybe 1 tank run in it since I owned it

[Nutech Racing U.S.A]

18+ tanks through my stock clutch and clutch bell with no issues, stock 26cc CY with a Jetrpo pipe, I have had the alloy clutch bell carrier on since day one along with the alloy engine mounts on my Mega Monster truck.

Thank You,
Scott
Zero Gravity RC

[mooman007uk]

30+ tanks on mine running laut 4 shoe clutch, OBR full mod 27.2 and vrc propipe:boxing:

[Freeprawn]

Hiya mate,

When did you last change your clutch bell bearings?

Have you copper greased the pivot points on your clutch shoes?

Good to hear your still giving it max beans :punk:

Nige

[aidensere07]

going on towards 20 tanks mate if not more, everything as stock 23cc no problems with bell, it still going strong mike, must just be you mate :punk:

[Pipeous]

I get clutchbell and layshaft bearings in bulk from a machine shop in ohio. price is really good too

[mynameismud76]

Thanks guys for the info.

Yea Nige, drop those bearings straight in, and then had that run away. Copper greased the pivot points also.

Aiden, yup, I seem to be quite good at breaking bits..LOL.

[Freeprawn]

Thanks guys for the info.

Yea Nige, drop those bearings straight in, and then had that run away. Copper greased the pivot points also.

Aiden, yup, I seem to be quite good at breaking bits..LOL.

Hmm does seem a bit strange.

Does the clutch look like it is wearing evenly?

[mynameismud76]

Hmm does seem a bit strange.

Does the clutch look like it is wearing evenly?


Only had a look after replacing the first bell. But not since the second bell broke.

But it didn't look that noticeable, but need a closer inspection to be sure.

[Freeprawn]

Also have a look for any marks or signs of wear on the bells you have broke, check the bearings by hand and look to see if everything is in line and nothing is binding.

Other than that I'm at a loss, It's not a weak part in my experiance.

You could try an FG clutch bell just to rule out the Nutech ones.

Nige

[mynameismud76]

Also have a look for any marks or signs of wear on the bells you have broke, check the bearings by hand and look to see if everything is in line and nothing is binding.

Other than that I'm at a loss, It's not a weak part in my experiance.

You could try an FG clutch bell just to rule out the Nutech ones.

Nige



Cool, cheers buddy =)

Gonna have to have a look and see what is up, as two bells within the same tank is a bit much.

[Nutech Racing U.S.A]

I had a local customer call me today, he was at a cash race last weekend for the 4th of july, smoked the HPIs in the first heat and was getting ready for the 2nd and final heat when his clutch bell broke in the same place :-(, he wasnt able to complete the race so the HPIS won. I will get some pictures off to the factory and see what we can do.

Thank You,
Scott
Zero Gravity RC

[mynameismud76]

I had a local customer call me today, he was at a cash race last weekend for the 4th of july, smoked the HPIs in the first heat and was getting ready for the 2nd and final heat when his clutch bell broke in the same place :-(, he wasnt able to complete the race so the HPIS won. I will get some pictures off to the factory and see what we can do.

Thank You,
Scott
Zero Gravity RC


Curious that.

Silly question, was he running a Nutech?

I shall post some pictures also.

[Nutech Racing U.S.A]

Curious that.

Silly question, was he running a Nutech?

I shall post some pictures also.

Yes he is running a Nutech Mega Monster with smaller wheels and jetrpo pipe along with the alloy clutch bell carrier since day one.

P.S it was the stock clutch bell

Thank You,
Scott
Zero Gravity RC

[mynameismud76]

Had the clutch bell mount off today, in ready for the FG bell (still not here!! :damn:)

Had a visual on the clutch bell mount, seems ok.

Next, grabbed the clutch shoes and found it wobbles very slightly.:omg:

There shouldn't be any play in the crankshaft should there?

Wonder if this is why I've gone through two shafts within one tank??

[mooman007uk]

should be no play up and down at all....the clutch side bearings are the first to go along with the seal then the motor sucks air, every cy motor i've had has had that bearing and seal go after a while..i found ceramic bearings are they way to go

[hndaman1]

I had a local customer call me today, he was at a cash race last weekend for the 4th of july, smoked the HPIs in the first heat and was getting ready for the 2nd and final heat when his clutch bell broke in the same place :-(, he wasnt able to complete the race so the HPIS won. I will get some pictures off to the factory and see what we can do.

Thank You,
Scott
Zero Gravity RC


I was @ that race..and yes that clutch bell broke right @ the welds, very weird? is anyone using the 8k red spring @ all?

[merkur]

I was the guy who had it break..... After i took the engine out and replaced the clutch bell with the upgraded one i noticed that with the aluminum motor mounts, that i needed a shim, washer, behind the top two mount bolts because there was a gap. Why the upgraded motor mount and clutch holder don't come with longer standoffs I don't know. I believe the clutch was misaligned and that caused the clutch bell to break.... :wasn't me: lol Live and learn...

[mooman007uk]

everyone I know with the alloy mounts has had to shim them...but not all use the same size shims, mine has .5mm and another i know has 1mm. With the laut 4shoe clutch( it's a tad bigger than stock clutches) if I don't shim it exact it rubs on the bell

[Pipeous]

shimming an upgrade part? wtf? I just ordered them myelf because of distortion in the plastic one and it's a pain to get in there to shim grrr

[mradlin]

shimming an upgrade part? wtf? I just ordered them myelf because of distortion in the plastic one and it's a pain to get in there to shim grrr

I also had to shim my aluminum engine mount. It turned out that the mount on the pullstart side is about a washers thickness too thin. It's been perfect ever since.

[banners]

Has anyone noticed the difference in mesh (main steel gears )between the alloy mounts and the plastic? My engine is mounted on plastic and the mesh looks 'right' where as the alloy mounts make the mesh a bit further apart, almost like a tooth is missing on the spur or pinion. They seem to perform well enough so I'm assuming not a problem but it looks a little odd

[mradlin]

Has anyone noticed the difference in mesh (main steel gears )between the alloy mounts and the plastic? My engine is mounted on plastic and the mesh looks 'right' where as the alloy mounts make the mesh a bit further apart, almost like a tooth is missing on the spur or pinion. They seem to perform well enough so I'm assuming not a problem but it looks a little odd

That is what gave me the idea that mine needed shiming. Once i did the washer shim it all ligned up like it belonged there.

[banners]

Right, that would make sense. How have they managed to drop a clanger there?

IIRC didn't another rc company have a similar issue in the past?

Thanks for solving that little conundrum for me :yahoo:

[Pipeous]

I'll vet around to mine, had to rob it for a wheel square for another project... the mfg used red loktite and I stripped out 5 setscrews doing a tear down. had to cut a wheel square off... thank god I have Vancouver Hobbies to buy from hehe... add it to my box... (I think Scott has a permamnent box for me and just tosses stuff in until I can afford it... problem is the boxes keep getting bigger all the time ;) )

[rclover644]

Mine stock clutch bell shaft broke today after 10 tanks.

[mradlin]

Mine stock clutch bell shaft broke today after 10 tanks.

I haven't had a problem since I put the FG clutch bell in mine. ;)

[mooman007uk]

I'm still on a stock bell....30+ tanks and no problems

[mynameismud76]

I'm still on a stock bell....30+ tanks and no problems

Stock Nutech bell? That's fantastic..I've broke both the stock and CNC one quite close together =(

Same here Mike, the FG clutch bell is doing great .. :punk:

[hndaman1]

Stock Nutech bell? That's fantastic..I've broke both the stock and CNC one quite close together =(

Same here Mike, the FG clutch bell is doing great .. :punk:

Now I have a question did you guys with the broken bells ever take you gear holder off @ all? and noticed those 4 tiny washers that go behind it? if you put it back together without those washers the bell does not run "TRUE" in that bearing. we noticed that on another Nutech here..

[mynameismud76]

No gear cover here buddy.

[Obeast44]

Well today I broke the vented bell, and mine was shimmed correctly. Luckily I had a spare stock bell handy. It looks like I will be switching to an FG bell as well. I can't afford to keep replacing them.

[Pipeous]

I broke one saturday but it was the new aluminum side mount. I can see where the clutchbell had been rubbing on the alloy gear plate a bit. it was thicker and stuck out a tad further than the plastic one around the bearing. I changed the bell and it's fine now since it wore a mm down off the aluminum hehe.

should have seen the new one I opened to put on though. glad Scott had an extra. there certainly isn't much meat where mine broke.

[hndaman1]

No gear cover here buddy.


No gear cover here either..:punk:

[Obeast44]

Is this the correct FG clutchbell that will work on the TB2?
http://www.davesmotors.com/s.nl/c.885035/n.1/it.A/id.1910/.f

[Freeprawn]

Hiya,

You need the 6049 not the 6049/1

The 6049/1 has the flats at 90˚, the 6049 has the flats at 180˚.

Small but important detail ;)

There listed in my shop now too ;)

Nige.

[Freeprawn]

Here is the link for it.

http://www.freeprawnracing.co.uk/fg-6049-clutch-bell-1-pc-6049.html

Nige

[Obeast44]

Sweet, when I get the funds for the gears I may pick one up too :)