Cam cap bolt hole problem.

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21 Sep 2013 06:52 #607233 by Garn
Replied by Garn on topic Cam cap bolt hole problem.
Almous71, In my earlier post I mentioned "Bigserts", just to be sure you know what they are.... They are made by the same company that make "Timesert", however, they go in a larger hole, hence, can usually take care of off-centre errors, if there is enough meat where you are re-threading. Lots of engineering shops are not familiar with these!
RegardZ

1 x 73 Z1 (Jaffa), 74 Z1A, 76 Z900-A4
1 x 73 Yamaha TX500 & 98 fzx250 Zeal
Sydney Australia

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21 Sep 2013 11:55 #607247 by almous71
Replied by almous71 on topic Cam cap bolt hole problem.
Thanks Garn, I did see your mention of bigserts, and I'm still looking for a shop that uses them. I'm concerned that there's not enough meat left to cut into though:

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I know it can be welded and machined, but I suspect that'll be more than I can afford at the moment.

1981 KZ550-A2
Va.Beach, VA
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23 Sep 2013 14:19 #607447 by pbmax
Replied by pbmax on topic Cam cap bolt hole problem.
Seeing that picture, wouldn't the gasket surface need to be re-surfaced as well?

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24 Sep 2013 02:23 #607532 by MDawnz1
Replied by MDawnz1 on topic Cam cap bolt hole problem.
Sorry to say but that looks like it's weld it up time.

Mike

1974 Z1a, still 903

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25 Sep 2013 00:50 #607689 by almous71
Replied by almous71 on topic Cam cap bolt hole problem.
Or possibly a new used head.

On another note, dose anyone know if the marks on these journals and part of my intake camshaft indicate normal wear or more serious damage?

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1981 KZ550-A2
Va.Beach, VA
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