Husaberg
Go Back   Husaberg Forum > Mechanical and Technical > Mechanical

Mechanical Mechanical Forum - spinning bits and gyrating bobs


Reply
 
LinkBack Thread Tools Display Modes
May 23rd, 2011, 11:14 AM   #1
Member
 
Joined: Sep 2009
From: Quispamsis, New Brunswick, Canada

Posts: 94
Thanks: 0

I Ride: 2002 FC 550
camshaft alignments on various years?

I just installed a new "08" camshaft in my 2002 FC550. It originally had a "53" camshaft in it.

I compared the two very carefully before installing and noticed that the 08 cam was about 1.5mm shorter in overall length than the 53 cam. I installed the cam against the right side of the engine which put the lobes in the correct place, then I was left with about a 1.5mm gap between the cam bearing and the plug on the right side of the engine. I found an appropriate sized washer and installed it between the plug and the cam bearing to prevent the cam from walking sideways in the head. This positioned the lobes perfectly, and the cam sprocket is VERY close to where it should be, but it might be as much as 0.5 mm closer to the center of the engine.

Has anyone else encountered this? I could make a shim to place under the camshaft sprocket but just wondering what everyone else has done.
DuaneB is offline  
 
May 23rd, 2011, 12:57 PM   #2
Senior Member
 
Joined: Nov 2001
From: Ely, England

Posts: 15,444
Thanks: 403

I Ride: Husaberg FE501e 2003
Re: camshaft alignments on various years?

yes duane. we didn't know what and how till recently. seems that the '04 heads use a cam 1.5mm narrower which is pretty much what you have found it seems.

rule number one is to get the lobes squarely onto the cam follower bearings and you can do this by simply by turning the rocker cover over and laying the cam in the cover upside down to have a look-see.

next thing is to get the sprocket alignment right but would suggest complete shims the size of the camshaft face are made. the 1.5mm spacer is what I've been fitting and it always goes behind the back bearing. I don't think a shim is necessary.

regards

Taffy
Taffy is offline  
May 23rd, 2011, 04:48 PM   #3
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,840
Thanks: 1165

I Ride: 2008 700FK, 2002 628FST
Re: camshaft alignments on various years?

then there are other cams that need to go further in (toward the RHS) and machining is needed,

while its not ideal my 08 cam wasn't aligned properly from the factory and its still going strong, ive tickled the shoulder so it does now but had to shim the cam gear to retain proper chain alignment, if it needed to go the other way as described in the post above with a 1.5mm shim you'd need to make sure the cam doesn't need machining on the LHS to bring the sprocket back. having cam sprockets out of alignment by up to 1.5mm is far from ideal, you want both to be right
bushmechanic is offline  
May 23rd, 2011, 11:27 PM   #4
Senior Member
 
Joined: Sep 2006
From: Hayle Cornwall

Posts: 987
Thanks: 22

I Ride:
Re: camshaft alignments on various years?

Yes as Bushies says above all cams are different and need a bit of feterling , I've just fitted a 3015 Hot cam, this cam is for a KTM 520 525, but with the water pump shaft lopped off they drop straight in, when I put the cam in the rocker lid the lobes didn't line up with the rocker arms,so I had to relive the right hand bearing shoulder by about 1.5mm, perfect, and shim the sprocket to suit.

oh and Bushie, this cam does have top end, loads of it, mid range isn't to bad either. Did you find your 3015 cam needed the same as mine?.

Regards

Sparks.
sparks is offline  
May 24th, 2011, 02:53 AM   #5
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,840
Thanks: 1165

I Ride: 2008 700FK, 2002 628FST
Re: camshaft alignments on various years?

yes i found the 3015 needed about 1mm off the shoulder

and about 0.5mm more piston to valve clearance than I have at present so testing will have to wait cause my headgaskets stopped lifiting and Im not touching it
bushmechanic is offline  
May 24th, 2011, 03:47 AM   #6
Senior Member
 
Joined: Aug 2007
From: The Netherlands

Posts: 470
Thanks: 13

I Ride:
Re: camshaft alignments on various years?

Great info guys i will be testing the HC3015 also in a couple of weeks
ElSnorro is offline  
May 24th, 2011, 06:17 PM   #7
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,840
Thanks: 1165

I Ride: 2008 700FK, 2002 628FST
Re: camshaft alignments on various years?

the ktm 8/33 should be almost identical to the HC3015, i got the 3015 "free" because of the frequent buyer points system on rkymountain atv

#pn for the 8/33 is 590.36.110.000 its cheaper than the HC.

Sparks, in your bike how does the peak tourque of the 3015 compare to the X-2 ?
bushmechanic is offline  
May 24th, 2011, 11:20 PM   #8
Senior Member
 
Joined: Sep 2006
From: Hayle Cornwall

Posts: 987
Thanks: 22

I Ride:
Re: camshaft alignments on various years?

I meticulously cut a 1.10mm shim to go at the back of the cam sprocket to find out to my dismay it aint going to fit due to the lack of end float travel required of the valve lifter arm, this because of the spring being hard up to the shoulder cam sprocket fixing lug, only way round this would be to turn off 1.10mm from the fixing lugs, don't fancy doing that, might get away with it but don't want to risk it.

Regarding the torque of the 3015 Bushie against the LX-2 it's hard to say as the LX-2 went slowly south. But I find that 3015 pulls really well from really low rpm, but defiantly has more once you get up the top end.

I've got the revised version of the LX-2 in the mail to me, so I'll give that a whirl back end of the summer before engine strip down and rebuild, or before if I get the urge. I'm also waiting for a cam sprocket so I don't have to upset the valve timing that I have already on the 3015.

Regards

Sparks.
sparks is offline  
May 25th, 2011, 01:32 AM   #9
Senior Member
 
Joined: Aug 2007
From: The Netherlands

Posts: 470
Thanks: 13

I Ride:
Re: camshaft alignments on various years?

Originally Posted by bushmechanic
the ktm 8/33 should be almost identical to the HC3015, i got the 3015 "free" because of the frequent buyer points system on rkymountain atv

#pn for the 8/33 is 590.36.110.000 its cheaper than the HC.

Sparks, in your bike how does the peak tourque of the 3015 compare to the X-2 ?
Hi bushie,
i requested a price for the 8/33 at my KTM dealer but it was more expensive than the HC3015!?
ElSnorro is offline  
May 25th, 2011, 01:41 AM   #10
Senior Member
 
bushmechanic's Avatar
 
Joined: Jun 2007
From: south east WA Australia

Posts: 3,840
Thanks: 1165

I Ride: 2008 700FK, 2002 628FST
Re: camshaft alignments on various years?

the 8/33s are about $140 USD from usa KTM

interesting stuff Sparks that even on the 550 the 3015 didn't seem to loose much tourque, re the shim i don't run the auto decomp. very curious about testing results of the revised lobes, hopefully they last longer than the old method

if people are wanting to replace the x-2 or its copy the "taffmeisters tourque cam" with a solid billet cam the 8/06 should be more tourquey than both the 8/33 and the hc 3015, the 8/06 pn 590.36.010.100 about 145 USD

the 8/07 is nearly exactly the same specs wise as the X-1 or its copy the taffmeisters "topend cam" pn SMS.36.010.000 its pricey though at about 250 USD a whopping $10 more than a regrind but you don't have to supply a core.... so not much reason at present exchange rates UK vs USD to go with a cheap regrind until the questionable lobe build up is sorted out and well tested.
bushmechanic is offline  
Reply

  Husaberg Forum > Mechanical and Technical > Mechanical

Tags
alignments, camshaft, years



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
New years resolutions eyspy Husaberg 1 December 30th, 2010 08:32 PM
20 years !! hsb43 Husaberg 3 August 6th, 2010 01:57 PM
New years eve meander cypher Ride Reports 4 January 3rd, 2010 04:23 PM
New Years Day Husabergler Husaberg 4 January 1st, 2006 02:01 PM
Bad Years? javo Husaberg 10 May 26th, 2004 12:18 PM


Facebook Twitter Google+ RSS Feed