I have gotten into the chain and sprockets and can't find anything that
remotely looks like an alignment indicator-no dimples, scratches or the
like. Are these marks clearly visible on a factory original engine and
if so, does that mean perhaps the sprockets, and maybe chain, were
replaced by a PO? One hint is that the car ran best when road timed, and
the resultant dynamic timing was around 23 degrees BTDC, which always
made me wonder if someone put it back together slightly out of
If I replace the sprockets and chain, I will have to get the pistons and
cam aligned again, because I don't have any alignment marks to follow
and the existing alignment may be wrong anyway.
How would I do this?
Also, should a new tensioner be installed?