Retrobike Forum Index

It is currently Sat Dec 10, 2016 5:35 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3, 4  Next
Author Message
 Post subject:
PostPosted: Fri Jul 31, 2009 12:30 pm 
Retro Guru

Joined: Mon Jul 27, 2009 12:06 am
Posts: 694
Location: Elysium
WOW - really nice job!

Unusual but works great!!! 8)


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 01, 2009 2:22 am 
BoTM Winner
BoTM Winner
User avatar

Joined: Sun Apr 20, 2008 9:13 pm
Posts: 987
Location: Aspen Park
yeah. well done lad.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Dec 12, 2009 7:40 am 
Retro Guru
User avatar

Joined: Tue Oct 06, 2009 5:51 pm
Posts: 733
Location: Bay Area
I have acquired a set if revos and I can hear the rust rattling around inside. I'm not super worried about it, but perhaps if I get them repainted and restored I might consider following a path similar to what you have done with your red ferrari syncros cranks.

I'm curious about your rust removal technique. You said that you drilled a hole in the crank arm to pour out the rust dust? Can you describe/show where you drilled. How big of a hole? After the rust converter procedure did you seal up your patient or just leave it open?


Top
 Profile  
 
 Post subject:
PostPosted: Sat Dec 12, 2009 10:23 am 
Retro Guru
User avatar

Joined: Fri Nov 23, 2007 10:35 pm
Posts: 2048
Location: Vienna, Austria
classen wrote:
I'm curious about your rust removal technique. You said that you drilled a hole in the crank arm to pour out the rust dust? Can you describe/show where you drilled. How big of a hole? After the rust converter procedure did you seal up your patient or just leave it open?


you can see the hole on the right crank in this pic:
Image
the little round hole near the square taper.
the reason i did it there is, that its way easier to drill into the aluminium insert than the steel crank itself. apart from that its the place which causes the least structural weakening afaik.
i forgot what i used to seal the holes but i think it was some kind of glue :)


Top
 Profile  
 
 Post subject:
PostPosted: Thu Dec 31, 2009 2:50 am 
Gold Trader
Gold Trader
User avatar

Joined: Sat Aug 02, 2008 3:12 pm
Posts: 8436
Location: Oh Canada!
How big a drill bit did you use? And was it a any specific type of drill bit?

Lastly, I'm guessing you had to drill it at an angle inward, right?


Top
 Profile  
 
 Post subject:
PostPosted: Thu Dec 31, 2009 12:33 pm 
Retro Guru
User avatar

Joined: Fri Nov 23, 2007 10:35 pm
Posts: 2048
Location: Vienna, Austria
RockiMtn wrote:
How big a drill bit did you use? And was it a any specific type of drill bit?

Lastly, I'm guessing you had to drill it at an angle inward, right?

hmmmm, good question. i don't remember :oops: but it surely helps to use a metal specific drill.
yes, i drilled inwards.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jan 13, 2010 1:12 pm 
Dirt Disciple

Joined: Wed May 14, 2008 8:13 am
Posts: 76
I guess the aluminum inserts are glued into the steel cranks. As far as i know, the glue can withstand temperatures of max 180 °C, 200°C only for a very short time.

Powder is burnt in at above 200°C

I would not take the risk of powdercoating and respray them instead.

Or am i just bad informed?


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jan 13, 2010 1:44 pm 
Retro Guru
User avatar

Joined: Fri Nov 23, 2007 10:35 pm
Posts: 2048
Location: Vienna, Austria
Tommi74 wrote:
I guess the aluminum inserts are glued into the steel cranks. As far as i know, the glue can withstand temperatures of max 180 °C, 200°C only for a very short time.

Powder is burnt in at above 200°C

I would not take the risk of powdercoating and respray them instead.

Or am i just bad informed?

no you are totally right. i was lucky!
i would highly recommend against powder coating Revos!


Top
 Profile  
 
 Post subject:
PostPosted: Thu Jan 21, 2010 3:36 pm 
Dirt Disciple

Joined: Wed May 14, 2008 8:13 am
Posts: 76
Well, it is not only the glue that keeps it from spinning, as these X-rays show.

However, you don´t want it to fall out.

Image


Top
 Profile  
 
 Post subject:
PostPosted: Thu Jan 21, 2010 6:29 pm 
Retro Guru
User avatar

Joined: Fri Nov 23, 2007 10:35 pm
Posts: 2048
Location: Vienna, Austria
HOW COOL IS THAT?!?!
nice work tommi!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 36 posts ]  Go to page Previous  1, 2, 3, 4  Next

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group