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View Results: What is the horrible noise?
Cam chain tensioner 2 5.13%
Camshaft rockers / bearings 10 25.64%
Big end 10 25.64%
Gearbox main shaft bearing 3 7.69%
Crankshaft bearings 8 20.51%
Other? 6 15.38%
Voters: 39. You may not vote on this poll

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Old 02-27-2013, 01:43 PM   #46
Broooce
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You might want to check out this thread...lots of similar talk to your problems...

Go to:
http://www.advrider.com/forums/showt...=118095&page=3

and on to page 3...





Hope this helps, as my friend left his bike to me with similar issues this week.
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Old 02-27-2013, 07:55 PM   #47
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My money is on a spun crank bearing.
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Old 03-02-2013, 06:26 AM   #48
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Old 03-02-2013, 06:27 AM   #49
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Old 03-02-2013, 08:43 AM   #50
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Looks like bad scoring, but you can't even feel it!
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Old 03-02-2013, 08:46 AM   #51
Boon Booni
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Quote:
Originally Posted by moto_psycho View Post
Do those roller bearings on the rockers have any play in them?
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Old 03-02-2013, 09:20 AM   #52
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Sideways play in the rollers, no up/down or twist.



Guessing the stator cover doesn't seal very well!
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Old 03-02-2013, 09:46 AM   #53
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Quote:
Originally Posted by moto_psycho View Post
Sideways play in the rollers, no up/down or twist.



Guessing the stator cover doesn't seal very well!
You been losing coolant?
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Old 03-02-2013, 09:55 AM   #54
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Nah, but I will be rebuilding the pump.
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Old 03-02-2013, 11:15 AM   #55
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Stuck now, need flywheel puller, spanners for the base bolts, and a large flathead screwdriver for the chain guide...
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Old 03-02-2013, 08:27 PM   #56
bmwktmbill
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Your cylinder looks better than mine.
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Old 03-03-2013, 12:07 AM   #57
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If it's the same further down I won't get it plated. Maybe a new piston? If all I'm changing is the big end bearing then I may splash out on either a nice piston or the rally cam...
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Old 03-03-2013, 01:37 AM   #58
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Looks like I got there just in time, plating measures well, and can't feel any damage. Piston is starting to wear so will replace that. Just gotta wait for my flywheel puller to turn up (****ing Sundays!!).

Definitely what I would call 'too much play' on the big end.

Any advice on splitting the cases?

So, the bill so far,
65 - Electric Impact Wrench
18 - Electric Screwdriver (so fed up with twist,ratchet,twist,ratchet,twist)
80 - Athena Gasket Set
22 - Flywheel Puller

And will be purchasing
136 - Pro-X Conrod Kit
140 - Wossner Piston Kit
60-80 - Crank Rebuild


So far is 448, will be rebuilding the water pump too... sigh.
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Old 03-03-2013, 02:05 AM   #59
achile
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Quote:
Originally Posted by Kawidad View Post
Is this a new noise or has it been loud?

The LC4 engines make a lot of weird noises without being defective.

yup...all of them sound like a can of bolts rattling around. And they do a funny thing while idleing on the stand...they move!



Moto_psycho, how are the valves?
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Old 03-03-2013, 03:21 AM   #60
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How do you mean? I am yet to remove, lap and change the seals, need to borrow the spring compressor off of my Dad tonight.

How might I go about measuring the bore for piston size? Wossner have 3 sizes 0.01mm different, I know that is fuck all, but what clearance am I measuring here?
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