Originally Posted by
smelly62
If it flamed due to wear caused by dirt then it will be shagged. Remove psr and clean all parts then reassemble and if it fails the drop test you will need new bearings and psr or pinch. Drop test is where you hold the flywheel and if the the engine drop through tdc under it's own weight in less than 10 seconds it is too worn.
If it has digested dirt. The crank and everything else could be junk. Scratches in the liner won't wash out.