Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Mechanical

Mechanical Mechanical Forum - spinning bits and gyrating bobs


Reply
 
LinkBack Thread Tools Display Modes
September 8th, 2007, 11:22 AM   #1
Junior Member
 
Joined: Sep 2007
From: Finland

Posts: 18
Thanks: 0

I Ride:
Main bearing gone, Motoberg 650

I have Berg -05 650E with supermoto setup, 12hrs when I bought it, now 19hrs and clutch side main bearing gone.Clutch case was also damaged in point where oil is fed into the crank..crank head left skid marks to clutch case oil channel.When you shake the crank head you'll find huge radial play..I hope the crank is not twist, engine is not yet completely in pieces so can't tell.

Can someone of you gurus say if it is any help to increase amount of oil ( build extra oil tank), or install oil cooler? Weld the rod pin? I'm becoming very desperate when reading about all those main bearing failures..I have plans to fit roller clutch side and ball to ignition side, is that good set up?

I only use my Berg at tarmac, I guess that is explains a lot of that breakdown.Oils have been changed after every ride.

PS. I could install an other clock to my bike and then compare riding times and service times..
Quite easy to guess which ones are longer!
FinnBerg is offline  
 
September 8th, 2007, 03:17 PM   #2
Senior Member
 
Joined: Apr 2004
From: Murray Sunset, Australia

Posts: 850
Thanks: 1

I Ride:
RE: Main bearing gone, Motoberg 650

Thats no good

I feel your pain...
faktor is offline  
September 8th, 2007, 04:59 PM   #3
Senior Member
 
Joined: Jan 2004
From: Perth, Western Australia

Posts: 510
Thanks: 0

I Ride:
double ester oil

make sure you run a double ester oil, like Motul 300V
Gazza is offline  
September 8th, 2007, 11:21 PM   #4
Junior Member
 
Joined: Sep 2007
From: Finland

Posts: 18
Thanks: 0

I Ride:
RE: double ester oil

I use Bel-Ray 4T Thumper racing 20W-50, that is what I was recommended to use.
It is semisynthetic, but I really can't tell if it is double ester.What is the magic behind the double esters?By the way,is there different oil quality demands for roller and ball bearings?

Maybe the quality of oil is not the issue, but overall bad design of the crank..?That is my beginners opinion.
FinnBerg is offline  
September 8th, 2007, 11:27 PM   #5
Senior Member
 
Joined: Apr 2004
From: Murray Sunset, Australia

Posts: 850
Thanks: 1

I Ride:
RE: double ester oil

I aggree FinnBerg with overall bad design of the crank and to put my slant it crank cases and bearing fit....
faktor is offline  
September 8th, 2007, 11:51 PM   #6
Senior Member
 
Joined: Jan 2007
From: Qld Aust

Posts: 152
Thanks: 0

I Ride:
Re: RE: double ester oil

Originally Posted by faktor
I aggree FinnBerg with overall bad design of the crank and to put my slant it crank cases and bearing fit....
+ 1` on the oil issue. I dont think it matters a toss within reason, I use Rx Super and there are plenty using Delo 400 ( unless they have the double ester thingy) without a drama.
Out of interest Factor what oil do you run?
ozrider is offline  
September 8th, 2007, 11:55 PM   #7
Senior Member
 
Joined: Apr 2004
From: Murray Sunset, Australia

Posts: 850
Thanks: 1

I Ride:
RE: Re: RE: double ester oil

Amsoil 20w/50w.
faktor is offline  
September 9th, 2007, 12:07 AM   #8
Junior Member
 
Joined: Feb 2007
From: Greenville, SC, USA

Posts: 23
Thanks: 0

I Ride:
Re: Main bearing gone, Motoberg 650

Originally Posted by FinnBerg
Can someone of you gurus say if it is any help to increase amount of oil ( build extra oil tank), or install oil cooler? Weld the rod pin? I'm becoming very desperate when reading about all those main bearing failures..I have plans to fit roller clutch side and ball to ignition side, is that good set up?

I only use my Berg at tarmac, I guess that is explains a lot of that breakdown.Oils have been changed after every ride.

PS. I could install an other clock to my bike and then compare riding times and service times..
Quite easy to guess which ones are longer!
I was going to post a similar thread. I too have a motarded 05 FE 650 that is pretty much only street-driven but all these main bearing issues are starting to get scary.
I've read all the threads ad nauseum but some of these guys are talking way over my comprehension...All I really want to know is it a bearing quality issue or a crank issue, and more importantly, is there something that we can do about it?
Lou.
upstateSC-rider is offline  
September 9th, 2007, 02:38 AM   #9
Senior Member
 
Joined: Jan 2004
From: Perth, Western Australia

Posts: 510
Thanks: 0

I Ride:
Re: RE: double ester oil

Originally Posted by FinnBerg
I use Bel-Ray 4T Thumper racing 20W-50, that is what I was recommended to use.
It is semisynthetic, but I really can't tell if it is double ester.What is the magic behind the double esters?By the way,is there different oil quality demands for roller and ball bearings?

.
The 650 Berg manual specifically states that a fully synthetic oil must be used.

Double ester oils are quite different to normal fully synthetics, they are superior to complex ester that has previously been recognized the best base oil for engine oil up to now. Double ester technology is made by carefully balancing the ratio of complex ester and the newly developed macromolecular high polymer ester,which is supposed to deliver high output performance and superior reliability with 0% shear loss resulting in high oil film maintenance and oil pressure preservation qualities.

I know of a Dutch rallye team that have used 650's for rallye racing for over 4 years now with not a single blown engine or bearing. They swear by the Motul 300V.

Get a litre and have a look, its not like normal synthetic oil, looks and feels quite different.

My FE650 just did 5,500 km over 9 days of which 3,000km was on bitumen transport sections (ave 110-120 kph) and the rest full on off road rallye racing (up to 170 kph). The motor never missed a beat and looks barely run in.
Gazza is offline  
September 9th, 2007, 03:26 AM   #10
Member
 
Joined: Apr 2007
From: Perth West Australia

Posts: 66
Thanks: 0

I Ride:
I use Motul 300v it smells like bubble gum.

as for main bearings i think the 650 mains are to small in circumference. just compare them with a yamaha WR 450 ( see pics put up by WEED ) I'm sure the cases of a 650 could be machined out to accept bigger mains
I will do further research when my 650 pops
matt69 is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Mechanical

Tags
650, bearing, main, motoberg



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Main bearing question Tamas Mechanical 2 June 2nd, 2013 05:22 AM
main bearing failure madpugs Mechanical 22 June 1st, 2008 01:59 AM
2003 501 main bearing Torben2007 Mechanical 1 September 21st, 2007 11:50 PM
Main Bearing Torben2007 Mechanical 3 September 21st, 2007 01:55 AM
´04 FS450 RHS main bearing gone.. MortenDahl Mechanical 6 April 26th, 2007 03:25 AM


Facebook Twitter Google+ RSS Feed