SOHC.co.uk Forums > CB500/550

Broken tappet

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bomber:
Hello,
After successful rebuild of carbs, thanks to this forum (and usa one too), I finally started to sort my bike properly, thought first check and adjust tappets, and while un screwing locknut I managed to brake tappet.
Now, to fix that I have to drill a hole and unscrew remaining bit, my problem is that it seems impossible to drill a straight hole on a angle...
Another thing is after close inspection of a tappet it surface seems very uneven, is this "normal", should I replace them all?
Any advice much appreciated.


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hairygit:
DON'T whatever you do risk drilling it, you will always end up with some swarf loose in the engine, it's really not worth the risk. Take the rocker cover off and do it from underneath, it's very easy on a 500/550 four, on a standard 750 the engine has to come out! So get a rocker gasket and the tappet you need, couple of hours tops even if you've never done it before ;D

bomber:
Picture showing tappet as described earlier

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mickwinf:
Hairygit beat me to it, take the rocker cover off!

bomber:
Thanks!
Sounds much easier then drilling  :D
It will also give me a better idea what kind of mess is there.
Think will need to buy tourque wrench  :(
In manual it said to slackened off all tappets, why would it be necessary?



--- Quote from: hairygit on January 04, 2014, 08:19:08 PM ---DON'T whatever you do risk drilling it, you will always end up with some swarf loose in the engine, it's really not worth the risk. Take the rocker cover off and do it from underneath, it's very easy on a 500/550 four, on a standard 750 the engine has to come out! So get a rocker gasket and the tappet you need, couple of hours tops even if you've never done it before ;D

--- End quote ---

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