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Help me diagnose a ticking noise? Video attached.

Tango911
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Post by Tango911 » Thu Sep 06, 2012 8:17 am

possibilities, sounded louder as you moved down. could it be the starter chain/sprocket/starter clutch area?

and double check your procedure on the cam chain adjustment
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65 Sears Puch 250
69 Dream 305
74 Kawi H1
78 CB750 SS

LOUD MOUSE
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Re: Don't think it's the valves

Post by LOUD MOUSE » Thu Sep 06, 2012 8:25 am

You say zero play.
Did you not set them to .004?. .........lm

Cheburashka wrote:I adjusted the valves with zero play and I'm still getting the same noise. Any other guesses as to what it might be?

Cheburashka
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Post by Cheburashka » Thu Sep 06, 2012 9:16 am

They were at .004. I re-set them to zero tolerance just to eliminate any possibility of valve clatter.

LOUD MOUSE
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Post by LOUD MOUSE » Thu Sep 06, 2012 9:20 am

OK??????????? . ...........lm
Cheburashka wrote:They were at .004. I re-set them to zero tolerance just to eliminate any possibility of valve clatter.

Cheburashka
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Post by Cheburashka » Thu Sep 06, 2012 9:23 am

Tango911 wrote:possibilities, sounded louder as you moved down. could it be the starter chain/sprocket/starter clutch area?

and double check your procedure on the cam chain adjustment
I pulled the starter chain cover. It looks like everything works as it should. Chain stops moving once the engine is going. I'll double check the cam chain adjustment.

Cheburashka
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Cam timing adjustment? Allowable slop in timing chain?

Post by Cheburashka » Thu Sep 06, 2012 11:57 am

The timing chain adjuster is toward the end of its travel, but still has some room. Roller is in good shape.

I notice that with the stator set at "F" there's 1/8" of play in the cam. Does that indicate a worn chain?

I tried using a long stick held to the case (someone suggested that on Youtube) and localized it to the right side (chain side) around 2" behind the spark plug. That seems confusing to me since there's really nothing there to be making noise unless it's the piston itself.

I'd prefer not to pull the head since it's good riding weather. Any other input?

Thanks

rzgkane
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Location: Huntington Beach, CA

Re: Cam timing adjustment? Allowable slop in timing chain?

Post by rzgkane » Thu Sep 06, 2012 1:49 pm

Cheburashka wrote:The timing chain adjuster is toward the end of its travel, but still has some room. Roller is in good shape.

I notice that with the stator set at "F" there's 1/8" of play in the cam. Does that indicate a worn chain?

I tried using a long stick held to the case (someone suggested that on Youtube) and localized it to the right side (chain side) around 2" behind the spark plug. That seems confusing to me since there's really nothing there to be making noise unless it's the piston itself.

I'd prefer not to pull the head since it's good riding weather. Any other input?

Thanks
To me, it sounds too slappy to be a piston.
1965 CA77Dream

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