Texer wrote:Is the best (or the only) way to apply heat by torch? I had used my heat gun on engine parts but sounds weak for this application.
Final Drive inner rim on some models and not others?
Re: Final Drive inner rim on some models and not others?
I use the yellow canister of propane available at any hardware store.
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'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
- Ken in Oklahoma
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- Joined: Tue Aug 03, 2010 5:10 pm
Re: Final Drive inner rim on some models and not others?
Yeah, I'm pretty sure a heat gun will be too weak. You might want to go to Duane's website where he addresses the problem. As I recall he recommends hot enough to make water/spit sizzle. The reason you don't want to press the bearings out is that they will abrade the aluminum housing. You don't want the housing abraded because the bearing to housing clearance opens up and the bearing outer race is more likely to spin, ruining the hub. ($$$) I would use a propane torch. It will get the hub hot enough and the flame isn't as hot or as concentrated as an oxy-acetylene flame would be.Texer wrote:Is the best (or the only) way to apply heat by torch? I had used my heat gun on engine parts but sounds weak for this application.
Of course an oxy-acetylene flame can be used if you're used to using one and understand the why of what you need to do.
Correspondingly, when you put the new bearing outer race in, you will also need to heat the hub with the bearing outer race being chilled in a freezer.
Ken
____________________________________
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Re: Final Drive inner rim on some models and not others?
Using heat, you can press or pound out the bearings. I prefer the press because it is one smooth movement. Pounding or tapping is, well, multiple 'presses' as things start to cool.
If the wheel is still laced to the hub, then it is probably hard to get the wheel to fit into a press. So tapping them out is probably your only option.
If the wheel is still laced to the hub, then it is probably hard to get the wheel to fit into a press. So tapping them out is probably your only option.
www.beemersandbits.com
'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
'77 R100S - http://www.joshuawithers.com/r100s
'73 /5 Toaster Cafe bike http://www.joshwithers.com/slash5
'67 Bridgestone 175 Hurricane Scrambler
'66 R60/2
'72 BMW 2002
Instagram - jj_withers
Re: Final Drive inner rim on some models and not others?
Thanks guys, I appreciate all the help.
1970 R75/5
1974 R90s
1974 R90s