update
so its all done and running.
the rear main seal upper half is a pain to get out, getting the new one is a HUGE pain
other wise all running sweetly, seems to idle nicer seem to have a little more get up an go and is surprisingly quite.
the harmonic balancer outer half was loose and only staying in place because the rubber sleeve was so hard it had created a ridge that stopped the outer damper ring falling off, so may have contributed to the noise.
only negative is that i forgot the oil slinger , disc that fits between the lower cam drive gear on the crank and the inner seal on the cover.
i had a look on YT and some seemed to have it others not, im not pulling it apart again so i guess time will tell
will i get better fuel economy, nah probably not
although the stretched chain would have retarded the ignition slightly so maybe
also probably why it seems to be running smoother...slightly more advance
just guessing
so no more oil leaks yea
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