Broken toothed wheel cover thread - what to do - MVAgusta.net
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 32 (permalink) Old 06-18-2016, 02:51 PM Thread Starter
Established Member
 
Join Date: Sep 2013
Location: São Paulo, Brazil
Posts: 181
Broken toothed wheel cover thread - what to do

Been into an accident that caused the cover screw to fly away with a part of its thread (picture).

What are my options here?

ThanksName:  ImageUploadedByMotorcycle1466279486.433786.jpg
Views: 275
Size:  68.9 KB
allanl is offline  
Sponsored Links
Advertisement
 
post #2 of 32 (permalink) Old 06-18-2016, 06:52 PM
Old Wing Nut
 
esq'z me's Avatar
 
Join Date: Aug 2007
Location: Marietta, GA
Posts: 17,970
Send a message via Skype™ to esq'z me
Nasty! You could build the area up with metal epoxy (JB Weld) and drill and tap the hole. New cover, obviously.

JB Weld can be worked like metal.

Alternatively, a really good welder may be able to build the area up with aluminum and you could then machine it back to suitable condition.

It's that or new cases!

I used to be fast....now I just dream about it.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit), '71 CB100 (Lil' Red), '75 RD350C (Orange Bird) restoration project, 2015 Indian Chieftain (Rita) my "low-n-slow", '70 Suzuki F50 (Baby Blue), 2018 Suzuki GSX-S750L8 (Susie Q)
esq'z me is offline  
post #3 of 32 (permalink) Old 06-19-2016, 04:38 AM Thread Starter
Established Member
 
Join Date: Sep 2013
Location: São Paulo, Brazil
Posts: 181
Quote:
Originally Posted by esq'z me View Post
Nasty! You could build the area up with metal epoxy (JB Weld) and drill and tap the hole. New cover, obviously.

JB Weld can be worked like metal.

Alternatively, a really good welder may be able to build the area up with aluminum and you could then machine it back to suitable condition.

It's that or new cases!

Great thanks. Was wondering if a welder would be a much better solution given the risk that it could be messed up.

If I use JB and it turn out to not be reliable, would it be easy to remove and do the thing with a welder?
allanl is offline  
Sponsored Links
Advertisement
 
post #4 of 32 (permalink) Old 06-19-2016, 05:45 AM
New Member
 
Join Date: May 2016
Location: Adelaide South Australia
Posts: 33
Yes, it would easily grind off, back to bare metal. JB is surprisingly strong though.
stevenkelby is offline  
post #5 of 32 (permalink) Old 06-19-2016, 10:39 AM
Old Wing Nut
 
esq'z me's Avatar
 
Join Date: Aug 2007
Location: Marietta, GA
Posts: 17,970
Send a message via Skype™ to esq'z me
I have patched a few engine cases with JB weld in the past with good results. If you are careful, and use a dremel tool to clean up and reshape the exterior, the results can be cosmetically acceptable too.
Don't hurry yourself, and make sure to have completely clean, degreased surfaces.
Since there is no oil pressure in that area it should be a safe repair as well. Just need the bolt hole and flat sealing surface for the new cover.

I used to be fast....now I just dream about it.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'08 910R (Gina), '04 F4 SPR #275 Track Bike (Lola), YSR50 (The Rabbit), '71 CB100 (Lil' Red), '75 RD350C (Orange Bird) restoration project, 2015 Indian Chieftain (Rita) my "low-n-slow", '70 Suzuki F50 (Baby Blue), 2018 Suzuki GSX-S750L8 (Susie Q)
esq'z me is offline  
post #6 of 32 (permalink) Old 06-19-2016, 11:41 AM Thread Starter
Established Member
 
Join Date: Sep 2013
Location: São Paulo, Brazil
Posts: 181
Wonderful guys! Will have a go with the JB then.

Will updated the progress and results here after a can move my shoulder... Lol
allanl is offline  
post #7 of 32 (permalink) Old 06-20-2016, 06:52 PM
Senior Member
 
theknurl's Avatar
 
Join Date: Jul 2009
Location: Palos Verdes Est, SoCal, USA
Posts: 13,816
Send a message via Skype™ to theknurl
Thumbs up ?

allanl;

You need to repair the threads too.......

Try coating a bolt with Pam and test to see if JB Weld Kwik sticks to it

Then clamp the Pam coated bolt in place and use the JB Weld Kwik......

You can shape the epoxy with polyethylene sheet before it hardens



Noel-theknurl

The Forum Curmudgeon
I'm not PC either
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'08 910R
'05 F4
ph. 310-414-7247 PST, GMT -8
PayPal;
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Skype; theknurl
theknurl is online now  
post #8 of 32 (permalink) Old 06-22-2016, 05:11 AM Thread Starter
Established Member
 
Join Date: Sep 2013
Location: São Paulo, Brazil
Posts: 181
Quote:
Originally Posted by theknurl View Post
allanl;



You need to repair the threads too.......



Try coating a bolt with Pam and test to see if JB Weld Kwik sticks to it



Then clamp the Pam coated bolt in place and use the JB Weld Kwik......



You can shape the epoxy with polyethylene sheet before it hardens






Great insight. Will try this
allanl is offline  
post #9 of 32 (permalink) Old 06-27-2016, 07:59 PM Thread Starter
Established Member
 
Join Date: Sep 2013
Location: São Paulo, Brazil
Posts: 181
Ok guys, so here is a pic of the place with the surrounding paint removed and the test with the JB on a oiled bolt (didn't find Pam in here).

Will let you know tomorrow if I can unscrew the bolt.

The good news is that the thread that is left is good enough to screw and secure a bolt. So I am kind of tempted to use it anyway and if I am not able to unscrew after the JB is hard, just drill it and put a helicoil. What do you think?

Another thing is that I noted a kind of liquid gasket on the cover. And a freaking difference (dent) on the engine side where the bottom part joins with the upper.

Bike used to drip oil from there when new and stopped after I re torqued bolts to spec. Pretty sure this cover never came of before.

So the question is do I need a liquid gasket in there or should be fine just with the oring (new one)?

ThanksName:  ImageUploadedByMotorcycle1467075563.241158.jpg
Views: 137
Size:  61.9 KBName:  ImageUploadedByMotorcycle1467075586.077760.jpg
Views: 138
Size:  59.3 KB
allanl is offline  
post #10 of 32 (permalink) Old 06-27-2016, 11:50 PM
Moderator
 
Donsy's Avatar
 
Join Date: Aug 2008
Location: Australia
Posts: 22,054
New Site Garage
I'm not a big fan of the liquid form in applications like this, I prefer putties like these - http://uk.farnell.com/devcon/de600/d...4gr/dp/1711548 - http://uk.farnell.com/devcon/de600/d...uctSubstitutes


Make no mistake, I know JB Weld is a great product, I just find that sometimes putties are easier to work with in some applications. .
https://www.google.com.au/search?q=j...w=1536&bih=713
Loctite also makes some good stuff
https://www.google.com.au/search?sou...sch&gws_rd=ssl

It's just a Form-A-Gasket of suitable kind that's used on the cover, the two engine halves don't always offer a good joining surface.

Dons Nel
Own - Two F4 1000R's 06 and 07.
PayPal :
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

eMial:
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Mobile in Australia: 0438 385 776
Website with MV Manuals for Most models -
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by Donsy; 06-27-2016 at 11:59 PM.
Donsy is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to use all of the features of the MVAgusta.net site, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome