I am wanting to find information on camshaft locking. Is it just a matter of lining the sprockets with the shaft and pinning these in place? I have just read one head gasket write up and how he locked the shafts with the sprockets together with ties and board and removed shafts with sprocket entirely for cleaning the upper head cover. Another diy mechanic shows he left in place aligned within the upper head and removed together with the head. Which is best method?
Also, at what point does locking become necessary before 'all timing is lost'? What point can I work to before losing timing, ie, when doing timing belt accidentally moving the crank (although I didn't use a locking tool when doping timing belt), or is it when taking off the upper head ...? I'm just a little confused.
Cheers
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