SV650.org - SV650 & Gladius 650 Forum



SV Talk, Tuning & Tweaking Discussion and chat on all topics and technical stuff related to the SV650 and SV1000
Need Help: Try Searching before posting

Reply
 
Thread Tools
Old 02-12-17, 12:46 PM   #1
Seeker
Member
Mega Poster
 
Seeker's Avatar
 
Join Date: Jun 2016
Location: NE Lincs
Posts: 1,065
Default Preventing plastic stress fractures

I've fitted a RedFox hugger to my AL7 but I'm not 100% happy with the way it is fastened.

It mounts with the two screws that held the old chain guard (the hugger comes with an integrated chain guard) and sits on top of the swing arm close to the shock where another screw (vertical) attaches it to the swing arm, finally, on the exhaust side there's a bracket that locates the rear brake hose guide to the swing arm - the hugger sits under this and is secured by the bracket's screw.

The original chain guard had shoulder bolts (with a shallow shoulder), initially the hugger would not accept these so I opened up the holes until they did.

I still think that the hugger should (or could be made to) fit better so I've bought some (black) 6mm, button head screws and washers which brings me to my question:

The hugger holes line up with the swing arm holes but the chain guard part of the hugger is squeezed/distorted/pulled into position when the screws are tightened ie: it is under tension when fitted. RedFox say don't tighten anything down until all screws are in position but it makes no difference.

I have enough washers to prevent that from happening but I also have a large quantity of "O" rings - so should I rigidly mount the hugger to the swing arm using washers to stop it being pulled out of position or should I use o rings?
Seeker is offline   Reply With Quote
Old 02-12-17, 03:03 PM   #2
andy650
Member
 
Join Date: Jun 2017
Posts: 132
Default Re: Preventing plastic stress fractures

Mounting plastic with flexibility is always a good idea. If the oring method does not allow too much movement then use it.

You can also use rubber washers either side of the hole, as well as metal.
andy650 is offline   Reply With Quote
Old 02-12-17, 04:31 PM   #3
Bibio
Member
Mega Poster
 
Bibio's Avatar
 
Join Date: Jul 2008
Location: here as devil's advocate
Posts: 11,539
Default Re: Preventing plastic stress fractures

use fairing grommets with shouldered bolts/inserts. its how its done by suzuki etc.etc.

dont allow plastic to touch any part of the swingarm or it will rub through the metal and plastic and look shizz in no time. always stand it off from each other.
Bibio is offline   Reply With Quote
Old 02-12-17, 07:58 PM   #4
johnnyrod
Member
Mega Poster
 
johnnyrod's Avatar
 
Join Date: Jul 2003
Location: Doncaster, oop norf
Posts: 2,122
Default Re: Preventing plastic stress fractures

I had one of these on my curvy, fitted exactly the same way. It lasted about ten years but in the end it cracked where the mudguard met the exhaust side. It isn't fibreglass but something with more twang. Looked good,worked, fitted fine, was a shame it went in the end.
johnnyrod is offline   Reply With Quote
Old 03-12-17, 07:51 PM   #5
SVSte
Guest
 
Posts: n/a
Default Re: Preventing plastic stress fractures

Just fitted a Ermax hugger on my AL7 holes matched up spot on, and used the plastic washers on all the bolts they sent, 4 bolts 3 Large heads and 1 smaller one for the rear brake carrier.
Happy with it only time will tell LOL.

Last edited by SVSte; 03-12-17 at 08:06 PM.
  Reply With Quote
Old 03-12-17, 07:58 PM   #6
SV650rules
Member
Mega Poster
 
Join Date: Nov 2016
Location: Shropshire UK
Posts: 1,357
Default Re: Preventing plastic stress fractures

IMHO the only way to attach plastic is to do what OEM do, use grommets and shoulder screws, which means screw is fully tight but force on plastic is evenly spread and plastic does not touch metalwork.

My Puig carbon fibre look hugger came with grommets and shoulder screws and everything lined up perfectly ... I was very happy with quality and the fittings.
__________________
2016 SV650 AL7

Courage is resistance to fear, mastery of fear, not absence of fear - Mark Twain

Last edited by SV650rules; 03-12-17 at 08:03 PM.
SV650rules is offline   Reply With Quote
Reply

Thread Tools

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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rossi fractures shin at Mugello simesb Moto GP 51 07-06-10 09:06 PM
Advice for cleaning off/preventing rust Tomtoms Bikes - Talk & Issues 14 25-07-08 08:45 PM
What plastic are the plastic bits made out of? Mark_h SV Talk, Tuning & Tweaking 3 24-03-08 08:32 PM
False oil light preventing start up Ceri JC SV Talk, Tuning & Tweaking 2 09-12-07 03:48 PM
Plastic / Fairing Repair (Plastic Welding) Solution MattP SV Talk, Tuning & Tweaking 2 29-06-06 04:14 PM


All times are GMT. The time now is 01:47 PM.


Powered by vBulletin® - Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.