Honda CBR XX Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
248 Posts
Discussion Starter · #1 · (Edited)
Stay cowl (lower). https://www.partzilla.com/product/honda/64542-MAT-000
I didn't break this bit, I broke the bit that this attaches to!!!

Hi all. You'll never guess what I just broke!? I just snapped off the piece cast into the sump that the 'stay cowl (lower)' attaches to!
If you don't know what I mean, I'm referring to the small square on the sump with a smooth hole in it that you screw the 'L' shape bracket to. This L shaped piece is called a stay cowl (lower) and is bolted to the protruding part of the sump. As you know, this L shaped bit is one of the points we screw a 'special (fairing) bolt' into when putting our lower cowls back on. Well, I managed to snap-off the protruding square on the sump that the L shaped bit screws on to (see pic)
My questions are, what is this metal? The sump looks like aluminium but the Honda guy thought that the metal might be magnesium. Second question, can it be welded back on to the sump? I really don't want to have to replace the whole sump just because I snapped that bit off.
Sorry, I feel embarrassed about breaking this but I think it was weakened somehow as it broke off easily when I was trying to gently tap the L shaped bit down to help line it up better with the hole in the lower cowl. I should have removed it (the L bit) and bent it in the vice, but it was getting late so I took a short cut.
It will be great to hear what you think about repairing it. Thanks,
Nato.
 

Attachments

·
Play, it makes life fun
Joined
·
2,161 Posts
A weld shop should be able to tellyou. I really doubt it would magnesium. JB Weld could work too.

Sent from my SM-N960U using Tapatalk
 
  • Like
Reactions: Nato

·
Registered
Joined
·
336 Posts
mine is broken there as well, jb weld and be gentle is what i did.

i like the suggestion of using the adjacent bolt, thanks gran!
 

·
Registered
Joined
·
856 Posts
A weld shop should be able to tellyou. I really doubt it would magnesium. JB Weld could work too.

Sent from my SM-N960U using Tapatalk
+1 re JB Weld

As per advice Bee once gave me, I was told by my garage that yes it can be welded (in my case it was an engine mounting bolt point so needed engine dropped out, sent to specialist alu welder, old bit cut out, new piece of metal welded in then drilled and tapped for the new thread, then painted up with engine block paint). I was told it would not be cheap.

I didn't go as far as a quote. I did a temp fix while I saved up. However it's held up to date (even during another recent shroom accident).

I used JB Weld liquid cold weld. It's an expoxy which is rated at 5020 PSI strength and withstands 550°F of heat.

I glued the piece back in place. May at least be worth a try. Your call.
 

·
Super Moderator
Joined
·
8,999 Posts
As you can see nothing to he embarrased about. More than a few of us have broken one or both sides. Although that gets it more than the other. You can make a substitute mount using the afore mentioned pan bolt. Just add a bolt back in that's the thickness of the bracket. That way you won't take chance of stripping the threads out because you've reduced the engagement depth on the pan bolt. I actually have blanks made up for both sides on my tool box. Been meaning to use them as templates and make a bunch up for us to use when we do this very thing. Hmmmmmm gonna have to take a look now.
 

·
Registered
Joined
·
248 Posts
Discussion Starter · #7 · (Edited)
Hey guys, thanks so much for the quick replies and kind words. Ideally, I would love to get someone to weld it back on so I'll take the bike and broken bit to a welder next week and see what they say.
I love the idea of glueing it as I can repair my own mistake but not convinced glue will hold forever. What sort of temperatures are present in that spot do you think?
Making a new bracket is an excellent mod but I don't have tools for that so would have to pay someone to make it. Bees, would you please consider doing this for me? If so, what would you charge?
I'll let you know what the welder says, if that's okay?
Thanks men,
Nathan.
 

·
Super Moderator
Joined
·
8,999 Posts
Sure enough Nate
 
  • Like
Reactions: Nato

·
Registered
Joined
·
248 Posts
Discussion Starter · #9 ·
As you can see nothing to he embarrased about. More than a few of us have broken one or both sides. Although that gets it more than the other. You can make a substitute mount using the afore mentioned pan bolt. Just add a bolt back in that's the thickness of the bracket. That way you won't take chance of stripping the threads out because you've reduced the engagement depth on the pan bolt. I actually have blanks made up for both sides on my tool box. Been meaning to use them as templates and make a bunch up for us to use when we do this very thing. Hmmmmmm gonna have to take a look now.
Re bracket - Sorry, just quickly, are you saying to just get a longer pan bolt if adding a bracket? One that will go right to the end of the hole and seat so it doesn't risk stripping? Thanks
 

·
Super Moderator
Joined
·
8,999 Posts
Yes measure your existing bolt then add the thickness of the bracket to that bolt length. That should keep your seating perch the same.
 

·
Registered
Joined
·
949 Posts
A metal bracket attached to the sump is a good idea, just don't make it too strong. I the event of a shunt, you want the bracket to bend or break to avoid actual damage to the engine.
 

·
Registered
Joined
·
248 Posts
Discussion Starter · #12 ·
Awes
Yes measure your existing bolt then add the thickness of the bracket to that bolt length. That should keep your seating perch the same.
[/QUOTE
Awesome, thanks for clarifying.
 

·
Registered
Joined
·
248 Posts
Discussion Starter · #13 ·
A metal bracket attached to the sump is a good idea, just don't make it too strong. I the event of a shunt, you want the bracket to bend or break to avoid actual damage to the engine.
Good call Fizzy! It could cause more damage. Any impact would be transferred though the brackets into the sump. I hadn't thought of that. Hopefully, I can find a skilled welder to fix it. Cheers mate, you guys are great.
 
1 - 13 of 13 Posts
Top