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TLZone Commercial Vendors.
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05-10-2008, 01:49 AM
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#21 (permalink)
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Silver Subscriber
Member #3125
Posts: 1,796
Join Date: Jul 2004
Location: Sweden (Östersund)
Sportsbike: RC8
Riding Experience: It´s BIG ;)
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Life Wasted on TLZone: 3 Months, 1 Week, 0 Days and 4:48:49 Hours
Ricken
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Quote:
Originally Posted by Sam
Thats normal, it's the exhaust cam decompressor, it stops once the engine turns over fast enough to fling the bob weight out.
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Ok, thanks.
I have been thiking about it since I installed the motor. |
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05-11-2008, 02:56 AM
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#22 (permalink)
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Baby Twin
Member #10676
Posts: 1
Join Date: Jul 2007
Sportsbike: TL1000S '97
Riding Experience:
Pictures: 0
Life Wasted on TLZone: 3:49:12 Hours
WilheLM TL
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05-11-2008, 03:03 AM
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#23 (permalink)
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Upside Down Super Mod
Member #103
Posts: 37,819
Join Date: Feb 2003
Location: Melbourne, Australia.
Sportsbike: GSXR1000 K3
Riding Experience: 20+ years
Pictures: 146
Life Wasted on TLZone: 5 Months, 1 Week, 1 Day and 10:51:30 Hours
Steve TLS
is TLess
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Quote:
Originally Posted by WilheLM TL
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That looks like it got real hot too (and worn). What did the cam lobe look like? |
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05-11-2008, 04:56 AM
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#24 (permalink)
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Silver Subscriber
Member #1366
Posts: 4,625
Join Date: Oct 2003
Location: Switzerland
Sportsbike: TL1000S
Riding Experience: Since 1999
Pictures: 0
Life Wasted on TLZone: 3 Weeks, 6 Days and 5:39:35 Hours
rufer
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That last one ineed looks strange. Not sure if it is the photo.
Greetings
Rufer
__________________
2x TL1000SW, candy jade lime yellow. TL1000cup.de champion 2007, 2008 & 2009
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05-12-2008, 09:29 AM
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#25 (permalink)
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The Suck, Squeeze, Bang, Blow Moderator
Member #2130
Posts: 9,849
Join Date: Mar 2004
Location: York, Ooop North in England
Sportsbike: 3 TLS's, 06 ER6-F
Riding Experience: 33 Years & Still Counting
Pictures: 1
Life Wasted on TLZone: 2 Months, 4 Weeks, 1 Day and 14:54:18 Hours
Sam
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I've never seen a TL bucket that worn before, almost as though the case hardening on the cam lobe has worn through and started to "pick up" on the bucket  |
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06-24-2008, 10:29 AM
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#26 (permalink)
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Superbike Twin
Member #9579
Posts: 187
Join Date: Jan 2007
Location: Wuppertal, Germany
Sportsbike: UNO TLS, 59 HD with Shovelhead, my Girlfriends 600 Monster, my Sons Suzuki XF 650
Riding Experience: yes
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Life Wasted on TLZone: 3 Days and 23:32:56 Hours
frank
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Here some pics of the tappets from exhaust cam of the front zylinder.
The left one wasn't damaged, but the bottom color changed from iron-silver to blue.
The right one was damaged. There are a lot of tiny scraps around. Maybe as deep as they are wide. (some hundrets of millimeters)
Better to see on this one:
A raceengine mechanic means, that this is from the contact of the sharp edges of the cam. He never saw something before, but he would use it. Not me  I changed them.
Another idea is that something from the autodecompression finds a wrong contact.
Btw: the six other tappets are allright. The cam space was nearly perfect. And I don't ride for hours with full speed on the autobahn. |
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06-24-2008, 10:33 AM
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#27 (permalink)
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Silver Subscriber
Member #1366
Posts: 4,625
Join Date: Oct 2003
Location: Switzerland
Sportsbike: TL1000S
Riding Experience: Since 1999
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Life Wasted on TLZone: 3 Weeks, 6 Days and 5:39:35 Hours
rufer
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Thanks for translating and posting that, Frank.
cam space = valve clearance.
Greetings
Rufer
__________________
2x TL1000SW, candy jade lime yellow. TL1000cup.de champion 2007, 2008 & 2009
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06-24-2008, 11:22 AM
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#28 (permalink)
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Just call me Ragnar Danneskjöld
Member #2079
Posts: 24,453
Join Date: Mar 2004
Location: Cambridge MA
Sportsbike: 97 TL1000S, 01 CR250R, 96 DR350SE
Riding Experience: 14 years
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Life Wasted on TLZone: 3 Months, 3 Weeks, 4 Days and 14:25:17 Hours
BikePilot
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Yes thanks 
__________________
Josh 
TL Zone Forum Staff - Resident RAIN RIDER
Questions about The Forums? Click Here
1997 TL1000S/V
- TLR Akro Evo Ti Exhaust - PCII - 5.5" rear rim & 180/55 - Avon AV45/46ST tires - No Steering damper- Uni Filter -Relocated Temp sensor & 98+ t-stat housing/wp cover - TLRCrazy1 Fan Switch Mod - Dual Star heated Grips - HeliBars - 60k miles.
9k mile summer ride report [summer '08]
Ride report: Oshkosh, Rockies, UT, NV, CA, Bajal [summer '09]
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07-14-2008, 06:57 PM
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#29 (permalink)
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Silver Subscriber
Member #4340
Posts: 4,835
Join Date: Jan 2005
Location: was Chicago, now Long Beach, CA
Sportsbike: 2001 TLR, Cagiva 650, K1200LT
Riding Experience: 40 years
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Life Wasted on TLZone: 2 Weeks, 0 Days and 4:09:05 Hours
cyclecamper
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What kind of assembly lube is he using?
So it blew, and he's guessing that the follower borke and that jammed the cam, which sheared the gear and stopped the cam making the piston hit the valve. Just as possible that the springs got old and the valve stuck, piston hit it and broke the lifter, or several other possibilites. Cam gear broke off and stopped cam, piston hit valve and broke follower. Point is, the follower could just be the victim, not the cause, and that's more likely. I'd double-check the squish. Maybe he was one of those people who gets the cam timing a half-tooth off half the time.
__________________
It's about control skill; this is a motorized dance for joy and not Russian roulette.
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07-15-2008, 04:35 AM
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#30 (permalink)
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Silver Subscriber
Member #1366
Posts: 4,625
Join Date: Oct 2003
Location: Switzerland
Sportsbike: TL1000S
Riding Experience: Since 1999
Pictures: 0
Life Wasted on TLZone: 3 Weeks, 6 Days and 5:39:35 Hours
rufer
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Yes, I agree it is difficult to say what exactly failed first after something in the valve train broke. It would be possible that the piston first touched the valve (why?) and the bucket broke because of that.
BUT. Look at the buckets Frank posted. That is not looking normal, does it? And Wolfgang has seen and replaced numerous of such cracked (but not yet failed) buckets, all on the front exhaust cam.
On the subject of squish: These were all stock engines, so no point to check squish??
Greetings
Rufer
__________________
2x TL1000SW, candy jade lime yellow. TL1000cup.de champion 2007, 2008 & 2009
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