Replace leaking Ninja Front Bearing with Ninja bearing or other brand?  
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Car Engines >> Car Nitro & Gas Engines >> Replace leaking Ninja Front Bearing with Ninja bearing or other brand?
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Replace leaking Ninja Front Bearing with Ninja bearing ... - 5/9/2008 2:40:14 AM   
UG0TB4NN3D


 

Posts: 1342
Joined: 11/6/2007
From: Jonesborough, TN, USA
Status: offline 		I've got a leaking front bearing in my ninja .28, which I've heard I shouldn't worry about, but it makes me uneasy that the bearing is leaking, and I'd like to replace it. $30 bearing or $300 engine, I'd like to go the cheaper route.

What are the best bearings to buy to replace front bearings? The measurements are 7x9x6mm.

Thanks.

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<s>Jammin'''''''' X1 CRT Pro, BCE PJX Chassis + Small Spur mod, Ninja .28 Powered, Spektrum DX 2.0M</s> - <b&
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RE: Replace leaking Ninja Front Bearing with Ninja bear... - 5/9/2008 4:05:53 AM   
hrdcoreglf


 

Posts: 787
Joined: 5/2/2007
From: Boca Raton, FL, USA
Status: offline 		If you get in touch with these guys and tell them what sizes you need they can hook you up with different choices at different prices. http://www.bocabearings.com/main1.aspx?p=about

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RE: Replace leaking Ninja Front Bearing with Ninja bear... - 5/9/2008 5:11:26 AM   
rageworks


 

Posts: 96
Joined: 12/13/2005
From: Alexandria, VA, USA
Status: offline 		Amain has the TKO ceramic 7x19x6 front engine bearing for $14.99
Good bearing, good deal.

(in reply to hrdcoreglf)
       Post #: 3

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 5:12:58 AM   
Dale Gribble



Posts: 3560
Joined: 9/17/2003
From: Pittsburgh, PA, USA
Status: offline 		You will probably need one of those bearing presses too.. Some guys can do it with a combo of heat/cold. Why not call Ninja and see if they will replace the engine? Sounds like a MFG defect.

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MFRCX SvSS XFctr GST77 HPR7PR XT2 X1CR-FT X1-CRTPR GigDFx2x28 MLST2 MQS PTMMT Maxx Zilla Jgg2 NTC3 4TEC3.3
5B SS

(in reply to rageworks)
       Post #: 4

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 5:32:44 AM   
pur3evil


 

Posts: 97
Joined: 9/4/2006
From: , ID, USA
Status: offline 		Bearings are easy to replace. I use the method RB Concepts recommends.

Ditto on the TKO ceramics. I have one in both my RB C6BB and Sportwerks .26v2.

-Howard

< Message edited by pur3evil -- 5/9/2008 5:33:16 AM >

(in reply to Dale Gribble)
       Post #: 5

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 6:19:16 AM   
UG0TB4NN3D


 

Posts: 1342
Joined: 11/6/2007
From: Jonesborough, TN, USA
Status: offline 		I contacted Ninja and thy said that because GRP dropped them, I'd have to contact GRP directly and then see what they'd do.

But I'd have to ship it to Italy.

_____________________________

<s>Jammin'''''''' X1 CRT Pro, BCE PJX Chassis + Small Spur mod, Ninja .28 Powered, Spektrum DX 2.0M</s> - <b&

(in reply to pur3evil)
       Post #: 6

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 8:08:51 AM   
supertib


 

Posts: 3189
Joined: 3/30/2004
From: , MB, CANADA
Status: online 		Send the motor to AB for mods and a new bearing !

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RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 2:07:39 PM   
Dale Gribble



Posts: 3560
Joined: 9/17/2003
From: Pittsburgh, PA, USA
Status: offline 		Ah, better to do it yourself then I suppose.

_____________________________

MFRCX SvSS XFctr GST77 HPR7PR XT2 X1CR-FT X1-CRTPR GigDFx2x28 MLST2 MQS PTMMT Maxx Zilla Jgg2 NTC3 4TEC3.3
5B SS

(in reply to UG0TB4NN3D)
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RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 5:04:57 PM   
RevToTheRedline



Posts: 984
Joined: 7/6/2004
From: Fort Payne, AL, USA
Status: offline 		I found that my TKO ceramic front bearing started leaking as fast as the stock OS one I replaced. I'd say go with Boca.

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(in reply to Dale Gribble)
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RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 5:40:31 PM   
Baedarlboo


 

Posts: 20
Joined: 2/18/2008
From: Atlanta, GA, USA
Status: offline 		Does everyone here know that small amounts of leakage is normal from the front bearing, as they are not completely sealed....
Running the motor rich also makes it seem worse. Your motor is not a completely sealed system, it's normal to have small amounts of oil.

(in reply to RevToTheRedline)
       Post #: 10

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/9/2008 6:10:45 PM   
The Winner


 

Posts: 384
Joined: 10/3/2007
From: Athens Pefki, GREECE
Status: offline 		i have also a tko ceramic in my lrp z.28r!! when i bought it ,it has some play! also i remove the one seal! i have put it in my engine but i dont run it yet! is good bearing??also i replace the rear with boca lighting ceramic! i make good choises?

(in reply to Baedarlboo)
       Post #: 11


RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/10/2008 4:07:08 AM   
UG0TB4NN3D


 

Posts: 1342
Joined: 11/6/2007
From: Jonesborough, TN, USA
Status: offline 		It wasn't just small amounts of oil. :| When I blew in the line, bubbles came out, which meant that there was also an air leak.

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<s>Jammin'''''''' X1 CRT Pro, BCE PJX Chassis + Small Spur mod, Ninja .28 Powered, Spektrum DX 2.0M</s> - <b&

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       Post #: 13

RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/10/2008 4:22:18 PM   
supertib


 

Posts: 3189
Joined: 3/30/2004
From: , MB, CANADA
Status: online
quote:

ORIGINAL: UG0TB4NN3D

It wasn't just small amounts of oil. :| When I blew in the line, bubbles came out, which meant that there was also an air leak.



No thats pretty normal and doesn't mean there is necessarily an airleak.... is the motor suffering from air leak symptoms ?

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RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/10/2008 7:43:28 PM   
UG0TB4NN3D


 

Posts: 1342
Joined: 11/6/2007
From: Jonesborough, TN, USA
Status: offline 		Yeah, during a normal run, and it's tuned pretty rich, but it was running around 350 when I temped it, so I haven't run it since then.

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<s>Jammin'''''''' X1 CRT Pro, BCE PJX Chassis + Small Spur mod, Ninja .28 Powered, Spektrum DX 2.0M</s> - <b&

(in reply to supertib)
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RE: Replace leaking Ninja Front Bearing with Ninja bea... - 5/10/2008 10:02:36 PM   
supertib


 

Posts: 3189
Joined: 3/30/2004
From: , MB, CANADA
Status: online
quote:

ORIGINAL: UG0TB4NN3D

Yeah, during a normal run, and it's tuned pretty rich, but it was running around 350 when I temped it, so I haven't run it since then.



well don't feel too bad my OS 28 is leaking from the front bearing something fierce...Just pissing fuel all over the truck and motor..... I leave the motor sit overnight and there is a huge puddle under the truck where oil has seeped out the motor and onto the table.... Motor still runs really good, only symptom is it wants to slightly hang the RPM up after a high speed pass.. other then that its running pretty much flawlessly..I should have some video of it today..

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Warning !!!! I have an opinion and I am not afraid to use it !

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