Cb550, cam chain adjuster bolt head fix

[Bigbird]

Greetings!
Engine rattled on startup and bolt broke upon adjustment. If anyone has a good advice or fix without taking the top off again it would very highly be appreciated. Thank you

[deltarider]

As the bolt is ment to be selfadjusting after loosening the nut somewhat in itself this is not a catastrophy. The only occasion you are supposed to use a screwdriver is when taking the engine apart. But Bryanj can educate you better on this. For now, just bring a nut on and tighten it (not too strong!). The adjuster has already adjusted itself.

[Bigbird]

Thanks for the reply!
I just thought the engine was hondarattling alot without using the screwdriver, compared to when i turned the bolt counterclockwise all the way.

Has anyone tried the turn of the bolt, and found that the better way?

Thinking of welding a bolt on the end, trusting that the new oring to the cylinder head will hold the oil back and not need changing for a very long time.

[Trigger]

Forcing this can cause damage to the mechanism on the tensioner. The tension is by the spring. The nut is just a locking nut, here is a couple of pictures that may explain better. It is automatic and to be set at TDC.

[Bryanj]

Hi all back from a week away, forcing that adjuster with a screwdriver is the biggest NO-NO in the Honda service. It is there ONLY to turn it the other way LIGHTLY so you can lock the tensioner back for re assembly purposes. Forcing it frequently damages the teeth on the end and opens the bracket causing lack of lock when tensioning