Cam has black spots on intake side

  • Kawi77
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11 Jun 2019 14:58 #805529 by Kawi77
Cam has black spots on intake side was created by Kawi77
Bike has been sitting for 14 years got it running run strong as top end chatter went to adjust shims and cam has black spots on it could this be from just sitting new member thanks for your help
Stevevaughn152
77 kz900
77ltd1000
79kz1000
80ltd1000

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  • Scirocco
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11 Jun 2019 15:09 - 11 Jun 2019 15:11 #805532 by Scirocco
Replied by Scirocco on topic Cam has black spots on intake side
Any pics of the black spots on the intake cam?
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 11 Jun 2019 15:11 by Scirocco.

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  • SWest
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11 Jun 2019 15:09 #805533 by SWest
Replied by SWest on topic Cam has black spots on intake side
What are the measurements?
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • Kawi77
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11 Jun 2019 15:23 #805535 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
I'm having a hard time getting pictures dow.
nload I will try again thank you. #1int 005. 250. #1exh0.15 270. #2. O.05. 255. 0.20. 270. #3. 0.10 230. 0.20. 280. #4 0.04 230. O.10. 275
Stevevaughn152
77 kz900
77ltd1000
79kz1000
80ltd1000

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  • Kawi77
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11 Jun 2019 15:26 #805536 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
As far as the pictures go I'm sure it's something I'm not doing right
Stevevaughn152
77 kz900
77ltd1000
79kz1000
80ltd1000

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  • SWest
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11 Jun 2019 15:28 #805537 by SWest
Replied by SWest on topic Cam has black spots on intake side
I was going to suggest cam slap.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • Kawi77
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11 Jun 2019 15:32 #805538 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
What exactly is Cam slap and thank you for your help
Stevevaughn152
77 kz900
77ltd1000
79kz1000
80ltd1000

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11 Jun 2019 15:38 #805540 by SWest
Replied by SWest on topic Cam has black spots on intake side
I've noticed a pattern on the cam lobes if they weren't adjusted correctly. It seems to go away. On the tips of the lobes are another matter. That could be wear of the hard face.
Steve
Z1b1000 1975 Z1b
kzrider.com/forum/11-projects/598262-kz-...-will-it-live#672882
kzrider.com/forum/2-engine/597654-poser?start=240#704229

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  • Scirocco
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11 Jun 2019 15:39 #805541 by Scirocco
Replied by Scirocco on topic Cam has black spots on intake side
Have to ask, do you talk about black spots on the surface of the cyl. head intake ports?
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

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  • Kawi77
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11 Jun 2019 15:49 #805542 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
The cam lobes themselves on a tips look fine
Stevevaughn152
77 kz900
77ltd1000
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  • Kawi77
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11 Jun 2019 15:50 #805543 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
Just on the backside of the cam away from the tips could be from sitting I don't know never seen this before
Stevevaughn152
77 kz900
77ltd1000
79kz1000
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  • Kawi77
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11 Jun 2019 15:52 #805544 by Kawi77
Replied by Kawi77 on topic Cam has black spots on intake side
Thank you for your help I really appreciate it I'm going to order some shims get it all put back together and go from there
Stevevaughn152
77 kz900
77ltd1000
79kz1000
80ltd1000

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