Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Mechanical

Mechanical Mechanical Forum - spinning bits and gyrating bobs


Thanks Tree13Thanks
Reply
 
LinkBack Thread Tools Display Modes
February 1st, 2016, 11:22 AM   #1
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
inner clutch hub threads stripped

Tackled the good old water pump shaft seal yesterday (milky oil). After reading many threads on here about it to prepare, I thought it had gone pretty well - until I found I'd fallen in to the "kick start trap"! So while removing the clutch (force parts slipper) I noticed 1 thread was stripped in the inner hub, and the other 3 are pretty poor also. My question is - is there any reason why I shouldn't drill them out 1mm bigger and tap new threads? Seems to be plenty of meat there - I'm just wondering if bigger bolts will have any effect i.e. I'm assuming the bolts need to be torqued to a certain value, will torquing bigger bolts to that value compress the springs more?

[IMG][/IMG]
BLUDGEONER is offline  
 
February 1st, 2016, 01:25 PM   #2
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,763
Thanks: 1057

I Ride: 2008 700FK, 2002 628FST
It's probably ok but there is a better way

Make the threads longer and use longer 6mm bolts. 7mm diam is a bit odd

I run this setup on my mongrel engine. second hand parts were stripped
bushmechanic is offline  
February 1st, 2016, 01:36 PM   #3
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
They're M5 I think. The threads really are in poor state. I think they've been helicoiled before as well. If using M6 bolts won't affect the operation, I think that will be the best solution - I don't want one of them pinging out!
By the way - if anyone has a link to the force parts slipper clutch fitting instructions, it would be much appreciated. Just to make sure I put it back together correctly.
BLUDGEONER is offline  
February 15th, 2016, 09:19 AM   #4
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
Had another good look at this today. Longer bolts aren't an option unfortunately - the diameter of the hole/shaft widens as it goes deeper. Looks like my only options are to helicoil or go for it and drill + tap them to M6 (they are definitely M5 at the moment).
Anyone got that link to the force parts slipper clutch fitting instructions?
Cheers.
BLUDGEONER is offline  
February 15th, 2016, 10:11 AM   #5
Senior Member
 
Joined: May 2010
From: Zagreb, Croatia

Posts: 286
Thanks: 168

I Ride: Husaberg FE 450 Force Edition
I have a hub that I might sell if you make me a decent offer...off a 2004 fe450, used but in very good condition.

Dont have the instructions for the slipper one unfortunately...
makazica is offline  
February 15th, 2016, 10:16 AM   #6
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
Slipper clutch hub is different to the stock one - 4 bolt rather than 6. Thanks for the offer though.
BLUDGEONER is offline  
April 10th, 2016, 06:58 AM   #7
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
Well, I finally got this sorted and back together by drilling and tapping to M6 and putting long bolts in. Seems to be up to the job now.
I've now put about 6 litres of cheap oil through it to get rid of the milky grey crap - just cranking the engine over for a bit before dropping the oil and putting in fresh. I'm ready to run the engine again now - just for a couple of minutes, then change the oil once more before putting water back in the colling system. I wanted to make sure the oil is completely free of water contamination first, so that I'll know for sure that the seal was fixed properly.
Now - for the life of me, I can't get it to fire up, was easy(ish) before. Got a good spark, and pretty confident fuel is getting through (all I can get out of it now is the occasional backfire!).
It's got me wondering if I've disturbed something? Timing out because I've had the clutch basket off? My next step is to check the valve clearances, but I can't see how they will now be out as it started fine before all this? Any guidance would be much appreciated!
BLUDGEONER is offline  
April 10th, 2016, 09:26 AM   #8
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 15,029
Thanks: 325

I Ride:
Originally Posted by BLUDGEONER View Post
Tackled the good old water pump shaft seal yesterday (milky oil). After reading many threads on here about it to prepare, I thought it had gone pretty well - until I found I'd fallen in to the "kick start trap"! So while removing the clutch (force parts slipper) I noticed 1 thread was stripped in the inner hub, and the other 3 are pretty poor also. My question is - is there any reason why I shouldn't drill them out 1mm bigger and tap new threads? Seems to be plenty of meat there - I'm just wondering if bigger bolts will have any effect i.e. I'm assuming the bolts need to be torqued to a certain value, will torquing bigger bolts to that value compress the springs more?

[IMG][/IMG]
so what year and model is this off then?

Taffy
Taffy is offline  
April 10th, 2016, 09:48 AM   #9
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,763
Thanks: 1057

I Ride: 2008 700FK, 2002 628FST
So you have m5 x0.9 ?

If you go to m6 x 1 you will be fine

The same Tourque values on these result in very similar forces
bushmechanic is offline  
April 10th, 2016, 10:45 AM   #10
Senior Member
 
Joined: Oct 2015
From: UK (southeast)

Posts: 122
Thanks: 28

I Ride:
Originally Posted by Taffy View Post
so what year and model is this off then?

Taffy
05/06 550

This one -

Last edited by BLUDGEONER; April 12th, 2016 at 01:39 PM.
BLUDGEONER is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Mechanical

Tags
clutch, hub, stripped, threads



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sprocket spline stripped :( :( octopusenvy Mechanical 43 March 13th, 2017 02:54 AM
Oil Drain plug stripped 2010 fe 450 Mdc218 Mechanical 11 June 24th, 2015 03:26 PM
Help! Stripped oil drain hole. BirkirEl Mechanical 7 October 14th, 2013 08:03 AM
Fork foot threads stripped jmsvuk Suspension 3 March 5th, 2010 10:45 AM
Observation on a 2006 engine I just stripped. JBSracing Mechanical 4 November 23rd, 2005 01:58 AM


Facebook Twitter Google+ RSS Feed