After persuasion with a hammer and ball joint breaker fork, the crank pulley came off.
These are the photos for comment.
This is bent by the way if you cannot tell from the photo.
Something has been rubbing on this
Think the aluminium pulley contributed to the issues.
My opinion is the pulley hasn't been fully tightened down, the only way that belt guide could get bent like that is if it wasn't clamped securely between the crank cog and the outer pulley.
The aluminium fillings are the result of the guide flapping against the pulley, so yeah in short you didn't tighten it up fully. That is why the belt lasted 1400 miles, to be honest i would have expected it to fail sooner.
Hi Paul, I agree.
I have a replacement crank pulley but now require the guide plate but that can wait until the end of the month when i return from holiday.
Im going to see if i have it trailered to an engine tuning garage with a dyno to have it done all in one go.
Glad ive gotten to the bottom of it.
Paul, there is no difference in resistance when i turned the crank by hand, its not worth taking the head off is it?