I broke number 3 cam bearing holder!!

  • dberg
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I broke number 3 cam bearing holder!!

18 Mar 2017 13:30 - 19 Mar 2017 21:53
#757002
Hey everybody,
Hope somebody can help me, I broke number 3 cam bearing holder. How does a guy go about getting a replacement.
Any help would be great!!
Thanks
Dan
Last edit: 19 Mar 2017 21:53 by KZQ.

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  • Scirocco
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Re: I have a problem!!

18 Mar 2017 13:38
#757005
Sorry no replacement!!!!!
The cam bearing holders are machined together (mounted ) with the cylinder head.

Take some pics for a better repair solution
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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  • dberg
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Re: I have a problem!!

18 Mar 2017 13:45
#757006

Here it is

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  • Nessism
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Re: I have a problem!!

18 Mar 2017 13:49
#757008
I'm not super familiar with the big KZ engines but on many similar engines you can exchange caps without issue. The caps are line-bored with the head but the manufacturing was quite accurate such that interchanging caps rarely causes issues.

Regarding that crack, is it possible to simply align the crack and bolt the cap back on the engine? The bolts will hold the cap in place regardless of the crack.
Ed
Carb O-ring Kits : www.kzrider.com/forum/14-vendor-forum/62...rburetor-o-ring-kits

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
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Re: I have a problem!!

18 Mar 2017 14:01
#757011
Ok, I will just bolt it back on and see what happens.
Thanks guys

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  • Scirocco
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Re: I have a problem!!

18 Mar 2017 14:08
#757012
Some of the advanced members here in the forum use screw clamps to tension the cam shafts down to prevent such a damage to the cam caps.
Sorry didn´t found the picture yet.
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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Re: I have a problem!!

18 Mar 2017 14:09
#757013
Just curious - how did you break it? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: I have a problem!!

18 Mar 2017 14:11 - 18 Mar 2017 14:14
#757014
He broke it at the lateral guides of the cam shaft. I suspect that the Cam shaft was not lateral centered
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 18 Mar 2017 14:14 by Scirocco.

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Re: I have a problem!!

18 Mar 2017 15:07
#757022
The way I broke it, I was getting in a hurry and did not see the bearing had slipped to the side so when I started to tighten it snapped.

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Re: I have a problem!!

18 Mar 2017 15:11
#757023

It is back together, hope it don't cause any problems.

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Re: I have a problem!!

18 Mar 2017 15:44
#757026
if the threats of the cam caps are in good condition your are on the safe site (do not over tighten them).
later ( i hope not so far ) if you must do a maintenance to your engine, you can welded the cap when the cylinder head is removed.
Good luck and enjoy your ride.
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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  • peter1958
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Re: I have a problem!!

18 Mar 2017 16:33
#757030
You can just run it like that.
www.kzzone.com/ cavanaughracing.com/kzdata.html www.mtceng.com/index.php/us-dealers/44-f...-performance-orlando

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