This piece
That's supposed to fit here
Dislodged when installing valve cover. At first start attempt, it moved and wedged between cam chain and tunnel on intake side just above CCT.
Engine is locked, cam chain incredibly tight.
What to do?
Tried removing CCT but it's under stress duress. Took me 2.5 hours .10 flat at a time. Then it occurred to me that the CCT may not come out if it's fully extended? Is that true or will the CCT clear the frame if fully extended? This is a new style CCT and won't hold the 'compressed' position without the key.
Such a bad day on the lift..
I hated to leave the cam chain and cams and crank under such pressure but decided to quit until daylight. The CCT bolts are at nearly out but thought I'd ask advice here first before making things worse.
If lifting the cams, even with heavy cam chain tension is an option, what's the best loosening technique? Away from cam chain sprockets first then work towards the sprockets or?
This part is wedged on intake side, just above CCT.
Worst case scenario, cut the the cam chain?
Any ideas?
Phook Me.
2019-08-01 KrZy8 Lost Valve Rubber Found - Locked Engine
2019-08-01 Found missing piece from valve cover causing engine lockup at start up.
Took some EndoScope pics in area where I thought MIA valve cover rubber cam chain guide ended up causing engine lockup at start. At first, convinced my ace deduction skills were correct.. These views from intake side top.
Here the cam chain appears to be centered and properly located.
Got the CCT out. YES, it can be removed when fully extended. When removed, the cam chain was still Banjo-String tight indicating the bind was severe and elsewhere.
Once CCT out , could remove intake runner dowel. Don't give me crap. The chain is still banjo-string tight and I don't care if I have to buy a new dowel pin. At this point, KrZy8's life is still at stake..
More EndoScope pics... Where is the MIA part?
Wish I had looked at this more closely.. Would have save 3.5 hours of time...
Because... Here it is. Wrapped around crank shaft cam chain sprocket. At first I thought "The chain was sooo tight it killed the teeth on the phenolic sprocket"... Deja Vu Kz1300 stuff..
But nooo, full steel teeth below..
That poor chain.
Intake side almost relieved.
Removed, cam chain restrained. Foreign material rag in place to keep crap from dropping into oil pan.
The offender.
It's the full piece. No worries of internal motor contamination.
That's it for now.. Lower back is SCREAMING from bending over for hours and troublshooting this bitch I love name KrZy8
2019-08-02 Cam Chain Saga cont.
Posted 01 August 2019 - 07:46 PM
#10 bigjohnsd
2014 BMW R1200GSA "Freya"
Posted 01 August 2019 - 08:14 PM
I think I would be concerned about how much this "edit" Might Have stretched the Timing Chain as well. JSNS
John Langdell
The only dumb question is the unasked question! - Anonymous
'14 BMW R1200 GS Adv "Freya"
#11 Pterodactyl
SURVIVOR
Posted 01 August 2019 - 08:38 PM
Glad it worked out in the end.
#12 kmanflyer
Training Pilot
Posted 01 August 2019 - 09:35 PM
I agree with bjgjohnsd, New TC would be cheap insurance from future failure. You have it almost all the way apart anyway. The TC Guides should be undamaged since that offending piece didn't get jammed in between the chain and the guide. Might want to closely inspect the CCT to make sure it's functioning properly and not damaged from that tight tension action that occurred.
Hope you don't have anymore surprises. Good Luck!
#13 SkooterG
Purveyor of Crooked Facts
Posted 02 August 2019 - 04:00 AM
Ok, I gotta know. How do you screw so much stuff up for a simple valve adjustment?
FJRForum: No fun allowed here!
FJR#1 - The 'Dirty Ol Whore' - 2004 non-abs - RIP @ 226,400 - Gone, but not forgotten.
FJR#2 - The 'Hula Girl' - 2004 ABS - 154k
FJR#3 - The 'Virgin' - 2004 ABS - 4344 miles, a garage queenFJR#4 - The Oregon FJR - 2004 ABS - 65kFJR#5 - The Bastard POS Gen II - 2009A - 106k
FJR#6 - 2014 FJR1300 ES
#14 RossKean
FJR Commander
Posted 02 August 2019 - 04:10 AM
Like drive chains of any sort, you will get elongation as the chain wears but this apparent "stretch" is a function of wear in the pins/bushings, not stretching. While this event MIGHT have caused some damage to the chain, it would not stretch it. Hardened steel vs a bit of plastic/rubber - I think the chain wins.
https://www.mromagaz...-chain-stretch/
Still, replacement might not be a bad idea. There is a small but real possibility that one or more of the pins could have been damaged and if you consider the price of a timing chain vs the cost of a catastrophic chain failure, the case for replacement is compelling.
#15 Geezer
Parsimonious Curmudgeon
Posted 02 August 2019 - 05:19 AM
Nice. A little sticky gasket spray on one side of the gasket would hold it in place next time. Something like this from Permatex or this from Loc-Tite.
My wife asked me why I speak so softly around the house. I said that I was worried that the NSA was listening. She laughed, I laughed, Alexa laughed.
#16 kmanflyer
Training Pilot
Posted 02 August 2019 - 08:18 AM
Ok not literally stretched, but severely stressed. Sounds like he hit the stater and it locked the motor. Not quit as bad as actually running and locking but stessed none the less. But as said better than piece dropping into the crankcase.
#17 SkooterG
Purveyor of Crooked Facts
Posted 02 August 2019 - 08:23 AM
Yo DC. I have a brand new timing chain I have never used. If you can't get on quickly I can priority mail it to you.
FJRForum: No fun allowed here!
FJR#1 - The 'Dirty Ol Whore' - 2004 non-abs - RIP @ 226,400 - Gone, but not forgotten.
FJR#2 - The 'Hula Girl' - 2004 ABS - 154k
FJR#3 - The 'Virgin' - 2004 ABS - 4344 miles, a garage queenFJR#4 - The Oregon FJR - 2004 ABS - 65kFJR#5 - The Bastard POS Gen II - 2009A - 106k
FJR#6 - 2014 FJR1300 ES
#18 FJRBluesman
Some call me... The STIG!
Posted 02 August 2019 - 08:29 AM
Holy smokes Don! Great lessons learned and what to watch for. Glad it all worked out in the end. So many puns there...
FJRBluesman quotables:
"Never ride anything with a brain!" "Friends don't let friends ride GenIIs"
The Piston Return Spring.... Without it, the internal combustion engine would be nothing....
#19 dcarver
FJR Forum Post Whore
Posted 02 August 2019 - 01:37 PM
Thanks Skooter. Not yet decided to replace or not.
Yes. Hit starter, rotated maybe 20 degrees and locked up. Knowing the chain was under duress I spent 2.5+ hours loosening CCT bolts within 2 threads of out which hopefully removed some tension.
Just now examined the chain in the crank gear area and find nothing visually wrong. Secured chain to top sprockets then lifted exhaust chain follower allowing slack at crank gear. Carefully examined each link visually with magnifying glass looking for link difference pin-to-pin and plate separation spacing. Then carefully 'seated' the chain to crank gear teeth feeling for engagement issues.
So far all looks good, chain wise.
CCT appears to be in good condition too. I have a new one to compare with, both feel identical in spring wind up and release smoothness.
Next step, install CCT, inspect entire length of chain and be sure timing hasn't slipped.
I wouldn't change a fucking thing; I've lived hard, played hard, and I ain't done yet. I've paid some severe penalties along the way, but the rewards have been so much greater; even if for just have participating in the game of life with utmost abandon. It's not who rides the furthest in a day, but rather in a lifetime. CBA member #1, IBA #31845 and very proud of both.
#20 dcarver
FJR Forum Post Whore
Posted 02 August 2019 - 04:56 PM
Worse than that SkooterG.. Just a valve cover replacement as I phooked up the gasket at last valve adjust!
I wouldn't change a fucking thing; I've lived hard, played hard, and I ain't done yet. I've paid some severe penalties along the way, but the rewards have been so much greater; even if for just have participating in the game of life with utmost abandon. It's not who rides the furthest in a day, but rather in a lifetime. CBA member #1, IBA #31845 and very proud of both.
2019-08-02 Cam Chain Saga cont.
Got CCT installed. Capsrew on top, easily reached with Allenwrench. Conventional 8 mm with custom screwdriver slot at bottom.
Released CCT and chain is tight.
Checked timing, all is good.
2019-08-03 Checked Valve Clearances, All GOOD!
Intake Exhaust
1-1 .203 .203
1-2 .203. .229
2-1 .178 .203
2-2 .229 .203
3-1 .203 .203
3-2 .203 .203
4-1 .203 .203
4-2 .203 .203