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Ken Currell · 03-15-2009, 08:47 AM

I use a toaster oven at 400 degrees F (and a good pair of oven mitts) until the bearings drop out or can be gently removed. Should work on cam bearings too. Some people use a propane torch but I prefer to heat the entire case.

JamesP · 03-15-2009, 09:10 AM

AHHHHHHHHHHHHH

The guy I used to get bearings from has gone under!!!! These bearings are TOAST! So, does anyone have a supplier they would like to recommend? I have seen the guy on E-Bay, but I'm not sure about him. Tried Boca Bearings, but they're website, says there is no bearings for this motor. Any ideas?

hellyeh · 03-15-2009, 09:12 AM

If the guy one Ebay is nubdoesparts , then you can trust him . I've ordered from him before with excellent results .

Ken Currell · 03-15-2009, 09:33 AM

Is this the bearing that you are looking for?

NTN Z959

JamesP · 03-15-2009, 09:35 AM

Uhh, lost me there, not sure what those numbers are in reference to. What I'm looking for is the crankshaft bearings, (front and rear) My camshaft bearings look fine.

moo · 03-15-2009, 09:39 AM

Werkt fer me:

http://www.rc-bearings.com/catalog/

http://www.rc-bearings.com/catalog/p...roducts_id=468

$10 US!

JamesP · 03-15-2009, 09:44 AM

Thank you sir!!

Maybe I will do the cam bearings while I'm at it.

Daren71 · 03-15-2009, 09:51 AM

Give these guys a try. I used them at their Mississauga store. Great service. I see there is one in St. Catherines as well.

http://www.canadianbearings.com

Boca bearings will give you the sizes for the bearings on their website, then give the other guys a call. All my bearings were on the shelf, in stock. Daren

Daren71 · 03-15-2009, 09:56 AM

I used a heat gun to heat the cases to get the bearings out. I used this guys videos as reference. They seemed to have some good ideas. Since my engine rebuilds were my first, I had no first hand knowledge.

http://www.youtube.com/watch?v=TuzEco3EDUM

Good luck, Daren

03-15-2009, 10:25 AM

As Darren states use "Canadian Bearings", they are an industrial bearing supplier. There is nothing special about the bearings in our engines (Apart from the occasional odd size) Catalog bearings, SKF, NTN, etc are rated for operating conditions far more severe than our engine use.

Ed S

03-15-2009, 08:47 AM	#11
Ken Currell Guest I am: Ken Currell Join Date: Jun 2004 Location: Whitby, Ontario Radio of choice: Multiplex Royal Evo # of RCs: 30+ Feedback: 3 / 100% Posts: 3,684 Total Props: 0	Re: OS 70 FS tear down Remove this ad - become a site supporter! I use a toaster oven at 400 degrees F (and a good pair of oven mitts) until the bearings drop out or can be gently removed. Should work on cam bearings too. Some people use a propane torch but I prefer to heat the entire case.
	.

03-15-2009, 09:10 AM	#12
JamesP RCC Apprentice Join Date: Sep 2003 Location: St Catharines, Ontario Feedback: 0 / 0% Posts: 77 Total Props: 0	Re: OS 70 FS tear down AHHHHHHHHHHHHH The guy I used to get bearings from has gone under!!!! These bearings are TOAST! So, does anyone have a supplier they would like to recommend? I have seen the guy on E-Bay, but I'm not sure about him. Tried Boca Bearings, but they're website, says there is no bearings for this motor. Any ideas? __________________ Busy is defined as your wife won't let you come out to play!! Take the Dog approach If you can't eat it or hump it, P*ss on it and walk away
	.

03-15-2009, 09:12 AM	#13
hellyeh RCC Expert Contributor I am: Gerald R Join Date: Apr 2008 Location: Lloydminster , Alberta Radio of choice: Futaba # of RCs: 30+ Feedback: 7 / 100% Posts: 880 Total Props: 13	Re: OS 70 FS tear down If the guy one Ebay is nubdoesparts , then you can trust him . I've ordered from him before with excellent results .
	.

03-15-2009, 09:33 AM	#14
Ken Currell Guest I am: Ken Currell Join Date: Jun 2004 Location: Whitby, Ontario Radio of choice: Multiplex Royal Evo # of RCs: 30+ Feedback: 3 / 100% Posts: 3,684 Total Props: 0	Re: OS 70 FS tear down Is this the bearing that you are looking for? NTN Z959
	.

03-15-2009, 09:35 AM	#15
JamesP RCC Apprentice Join Date: Sep 2003 Location: St Catharines, Ontario Feedback: 0 / 0% Posts: 77 Total Props: 0	Re: OS 70 FS tear down Uhh, lost me there, not sure what those numbers are in reference to. What I'm looking for is the crankshaft bearings, (front and rear) My camshaft bearings look fine. __________________ Busy is defined as your wife won't let you come out to play!! Take the Dog approach If you can't eat it or hump it, P*ss on it and walk away
	.

03-15-2009, 09:39 AM	#16
moo RCC Supreme Contributor I am: eric q Join Date: Jun 2005 Location: Crawford Lake, Ontario Radio of choice: Turborix # of RCs: too Feedback: 9 / 100% Posts: 7,148 Total Props: 27	Re: OS 70 FS tear down Werkt fer me: http://www.rc-bearings.com/catalog/ http://www.rc-bearings.com/catalog/p...roducts_id=468 $10 US! __________________ desiderantes meliorem patriam To err is human, to moo is bovine
	.

03-15-2009, 09:44 AM	#17
JamesP RCC Apprentice Join Date: Sep 2003 Location: St Catharines, Ontario Feedback: 0 / 0% Posts: 77 Total Props: 0	Re: OS 70 FS tear down Thank you sir!! Maybe I will do the cam bearings while I'm at it. __________________ Busy is defined as your wife won't let you come out to play!! Take the Dog approach If you can't eat it or hump it, P*ss on it and walk away
	.

03-15-2009, 09:51 AM	#18
Daren71 RCC Pro Contributor I am: Daren M. Join Date: Jan 2007 Location: Mississauga, ON Radio of choice: IX12 Feedback: 28 / 100% Posts: 1,928 Total Props: 18	Re: OS 70 FS tear down Give these guys a try. I used them at their Mississauga store. Great service. I see there is one in St. Catherines as well. http://www.canadianbearings.com Boca bearings will give you the sizes for the bearings on their website, then give the other guys a call. All my bearings were on the shelf, in stock. Daren __________________ The secret to a good flight is to be able to finish the flight and only bend over once to pick up your plane!
	.

03-15-2009, 09:56 AM	#19
Daren71 RCC Pro Contributor I am: Daren M. Join Date: Jan 2007 Location: Mississauga, ON Radio of choice: IX12 Feedback: 28 / 100% Posts: 1,928 Total Props: 18	Re: OS 70 FS tear down I used a heat gun to heat the cases to get the bearings out. I used this guys videos as reference. They seemed to have some good ideas. Since my engine rebuilds were my first, I had no first hand knowledge. http://www.youtube.com/watch?v=TuzEco3EDUM Good luck, Daren __________________ The secret to a good flight is to be able to finish the flight and only bend over once to pick up your plane!
	.

03-15-2009, 10:25 AM	#20
Ed Smith Guest Feedback: / % Posts: n/a Total Props: 0	Re: OS 70 FS tear down As Darren states use "Canadian Bearings", they are an industrial bearing supplier. There is nothing special about the bearings in our engines (Apart from the occasional odd size) Catalog bearings, SKF, NTN, etc are rated for operating conditions far more severe than our engine use. Ed S
	.

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