"Extra" valve tapping noise? - Page 5 - KTM Forums: KTM Motorcycle Forum
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post #41 of 69 (permalink) Old 04-22-2019, 10:38 PM
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Quote:
Originally Posted by rcollierengineer View Post
That's a little above my knowledge of the motor is the pin number 14 in the diagram?

G'day all,

There's another thread on here somewhere..... with really good pics of failed rocker bearings etc etc ...... I'll try to find it again....

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post #42 of 69 (permalink) Old 04-22-2019, 11:25 PM
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Originally Posted by DaveAu View Post
G'day all,

There's another thread on here somewhere..... with really good pics of failed rocker bearings etc etc ...... I'll try to find it again....
Might be mine,
Anyone else waiting on a camshaft.

2018 Duke 790,standard at present.
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post #43 of 69 (permalink) Old 04-23-2019, 12:29 AM
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Quote:
That's a little above my knowledge of the motor is the pin number 14 in the diagram?
no the pin is in the rocker no11 & no12 , its not marked but you can see it as it goes through the roller.

2008 1190 RC8
2007 690 SM

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post #44 of 69 (permalink) Old 04-23-2019, 05:18 PM
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Could you explain why the pins are punched/not punched? I'd imagine them to be hardened steel. Thanks

Whale oil beef hooked

2016 KTM Duke 690, 1967 Yamaha TD1C race bike
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post #45 of 69 (permalink) Old 04-23-2019, 07:54 PM
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There you go.

Lee
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post #46 of 69 (permalink) Old 04-23-2019, 11:15 PM
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Originally Posted by DaveAu View Post
G'day all,

There's another thread on here somewhere..... with really good pics of failed rocker bearings etc etc ...... I'll try to find it again....

Ahaaa...... found it....... in the 'Duke' section, thread title "Extra valve tapping noise"........ if you haven't already spotted it......... also, just saw a U tube video on another thread but thought it was this one.... it was more a how to inspect/change the rocker arm.

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02 CBR1100XX Black - 54k
94 FZR1000 Genisis - 150k
93 FZR1000 Genisis - 24k
88 FJ 1200 - 84k
85 FJ 1100 - 54k
(+XS1100P..... appx 10k)
84 VF1000F - 30k
(+CX500 & VF750S..... appx 30k)
81 Z1000J1 - 55k
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post #47 of 69 (permalink) Old 04-23-2019, 11:50 PM
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@DaveAu
Im calling bullshiiiiiiy on the last rocker with the + tool marks, thats the newest version rocker, but to get that much radial play 1 roller rod must be missing.
These things are designed not to wear like that.

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post #48 of 69 (permalink) Old 04-24-2019, 12:07 AM
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Quote:
Originally Posted by cors187 View Post
@DaveAu
Im calling bullshiiiiiiy on the last rocker with the + tool marks, thats the newest version rocker, but to get that much radial play 1 roller rod must be missing.
These things are designed not to wear like that.

..... errrr, forgive me but, I don't get it........ I don't have a 690, so haven't a clue what you're calling BS on

Have you got me confused with the OP or other?


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02 CBR1100XX Black - 54k
94 FZR1000 Genisis - 150k
93 FZR1000 Genisis - 24k
88 FJ 1200 - 84k
85 FJ 1100 - 54k
(+XS1100P..... appx 10k)
84 VF1000F - 30k
(+CX500 & VF750S..... appx 30k)
81 Z1000J1 - 55k
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78 CB750F2 - 27k
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post #49 of 69 (permalink) Old 04-24-2019, 12:10 AM
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no just wanted to invite you into the discussion.

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post #50 of 69 (permalink) Old 04-24-2019, 01:03 PM
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Quote:
Originally Posted by DaveAu View Post
'Not a common occurance'....... ....... that would be his way of backing out of any warranty or any further dealership assistance - not that I'm experienced with the 690, but there seems to be a common thread on forums dealing with rocker arm bearings failures on certain models.

One thought I had which may have relevance...... oil....... what oil do you use? And how often do you change it?

I only ask this because after years of wondering - I have only recently discovered that some of the oils we take for granted as being "the best" are actually no good for regular road riders..... in particular, the racing double esthers (I have read the marketing blurb sheets claiming they are suitable for street bikes however - a Motul contact and several service tech's and a recent bike magazine published oil article advise that racing blends have no long life polymers for extended street/touring riding) - you might only do 2000km a year racing so might be ok?.

As an example...... my Honda Blackbird has done 130,000 kms with no detectable change to valve clearances using Motul 5100 (semisyn/mid strength FS...????) 10w50 oil with changes every 6000kms (=half manufacturers spec schedule). When it had 114,000kms up it's cam chain and tensioner needed replacing...... that was an unmistakable continuous loud rattle..... not the valv'ie clatter on your video .

I suspect your valves haven't worn, but your rocker arm bearing has - thus the change to the clearances....... ...... but like I said...... not a 690 expert......
It is certainly more common than I thought!

https://tinyurl.com/KTMRockerbearingfailures


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Last edited by Taipan; 04-24-2019 at 01:16 PM.
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