RE: Removing cam bearings from OS engine?    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version


90 Dgree Muffler Adapters
Seller:  RC Specialties
Details:   $19.95   |  6/6/2013   |  Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> RE: Removing cam bearings from OS engine?
Page: <<   < prev  1 [2]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
RE: Removing cam bearings from OS engine? - 2/5/2008 4:41 PM   
Edwin


 

Posts: 5961
Score: 156
Joined: 2/8/2002
Last Login: 6/18/2013
From: Leander, TX, USA
Status: offline 		Kmot, You forgot to clean that green stuff off your engine.<g> What paint is that? Powdercoat?
Edwin

Hide Signatures

(in reply to Kmot)
       Post #: 26

RE: Removing cam bearings from OS engine? - 2/5/2008 8:13 PM   
Kmot



Posts: 10772
Score: 168
Joined: 6/11/2003
Last Login: 6/19/2013
From: Northridge, CA, USA
Status: offline 		Edwin, it is Dupli-Color engine enamel.

_____________________________

~Tom~

Hide Signatures

(in reply to Edwin)
       Post #: 27

RE: Removing cam bearings from OS engine? - 4/11/2011 11:48 PM   
Campgems


 

Posts: 4456
Score: 143
Joined: 2/18/2006
Last Login: 6/19/2013
From: Arroyo Grande, CA, USA
Status: offline 		Jens, That is a nice looking puller.  I tried making one last year after seeing your post on another thread, and it worked on the cap, but there wasn't enough room behind the bearing in the crankcase to get the jaws behind it.  I kept shaving them  until I could, then at  the first snug the end popped right off the shank.  It required a max thickness of 0.010" to get in behind the bearing.  It was at that point I moved to using the wax and a tamp rod.

This may have been just one engine, and it did work on the cap, but the fit was just too close in the crankcase for it to work.

I'm in the process of using your design though for a puller for main bearings. 

Don

Hide Signatures

(in reply to Motorboy)
       Post #: 28

RE: Removing cam bearings from OS engine? - 4/12/2011 5:45 AM   
Motorboy



Posts: 2223
Score: 115
Joined: 2/7/2004
Last Login: 10/23/2011
From: Bergen, NORWAY
Status: offline
quote:

ORIGINAL: Campgems

Jens, That is a nice looking puller.  I tried making one last year after seeing your post on another thread, and it worked on the cap, but there wasn't enough room behind the bearing in the crankcase to get the jaws behind it.  I kept shaving them  until I could, then at  the first snug the end popped right off the shank.  It required a max thickness of 0.010'' to get in behind the bearing. 


I'm in the process of using your design though for a puller for main bearings. 

Don


You an use tapered end of the screw instead the rod in the hole at the puller. Let us say: The hole in the puller is treaded inside with tapered hole from mid of length to end of the puller + screw with tapered pin . When the screw is turned into, then the puller is expanded firmly in the inner ring bearing, then pull out the old bearing.

_____________________________

Jens Eirik
Carpe diem quam minimum credula postero

Hide Signatures

(in reply to Campgems)
       Post #: 29

RE: Removing cam bearings from OS engine? - 7/20/2012 4:02 PM   
dbacque


 

Posts: 923
Score: 137
Joined: 6/3/2005
Last Login: 6/19/2013
From: Houston, TX, USA
Status: offline 		Needing to disassemble a 1.20 Surpass sent me searching for information on how to get the cam bearings out. This is the thread that solved the problem for me.

I started out with a tool like the one that Hellcat 1 showed with just a single foot but I couldn't get it to work. I finally decided that I had to make the split tool for an even pull. But I don't have machine tools so I couldn't make a tool as fancy as Motorboy's, no way to drill for a center pin. What I finally came up with was a low tech method of making Motorboy's tool.

I made mine using a socket head capscrew, a grinder, a Dremel with a fiberglass cutoff wheel and a pair of Visegrips. Without the center pin the legs wanted to close up when I would try to pull the bearing. So I made a shim from a washer just barely too thick to fit between the legs. I cut the washer in two and then thinned one end of it forming a wedge.

Clip the tool into the bearing, reach in with a thin pair of needle nose pliers and seat the wedge between the legs, assemble the washer and bolts, then pop the whole assembly in the oven. It worked great!

I didn't bother slotting the other tip for a screwdriver, I just used a couple of nuts locked against each other. I also used the socket like Hellcat 1 to pull the bearing out of the cap.

Thanks for the help guys, couldn't have done it without you and I wanted to add a few notes on how I did it without specialized tools.

Dave



Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to Motorboy)
       Post #: 30

RE: Removing cam bearings from OS engine? - 7/20/2012 11:44 PM   
Kmot



Posts: 10772
Score: 168
Joined: 6/11/2003
Last Login: 6/19/2013
From: Northridge, CA, USA
Status: offline 		Nice adaptation Dave!

_____________________________

~Tom~

Hide Signatures

(in reply to dbacque)
       Post #: 31

RE: Removing cam bearings from OS engine? - 11/16/2012 10:28 PM   
stewart69


 

Posts: 4
Score: 100
Joined: 12/24/2008
Last Login: 6/14/2013
From: Pennant Hills, AUSTRALIA
Status: offline
Hi, I made this little tool to get the stubborn cam bearings out, slips into the 5mm ID,tighten draw bar,apply some heat and pull. Fits OS singles and copies ie. ASP MAGNUM etc. PM me if you want one.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to Kmot)
       Post #: 32

RE: Removing cam bearings from OS engine? - 11/18/2012 4:44 AM   
Kmot



Posts: 10772
Score: 168
Joined: 6/11/2003
Last Login: 6/19/2013
From: Northridge, CA, USA
Status: offline 		That's a real nice looking tool you made Stewart!

There's another guy also selling a tool for removing bearings in blind holes. It's pretty pricey, but it is a nice looking tool:

http://www.rcuniverse.com/forum/m_11252559/anchors_11300440/mpage_1/key_/anchor/tm.htm#11300440

_____________________________

~Tom~

Hide Signatures

(in reply to stewart69)
       Post #: 33

RE: Removing cam bearings from OS engine? - 11/18/2012 7:12 AM   
stewart69


 

Posts: 4
Score: 100
Joined: 12/24/2008
Last Login: 6/14/2013
From: Pennant Hills, AUSTRALIA
Status: offline
Yes that other tool is a nice bit of kit but does not come in the correct 5mm ID bearing size.Also I am concerned the pin may punch a hole in the crankcase behind the bearing,it is only 1mm thick... My little puller is only made for removing R/C engine Cam bearings and with a bit of heat does it well.

Hide Signatures

(in reply to Kmot)
       Post #: 34

Page:   <<   < prev  1 [2]
All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Glow Engines >> RE: Removing cam bearings from OS engine?
Page: <<   < prev  1 [2]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.533RCU1