Re: compression for QD-17

[Don]

A little low, but maybe just from sitting, these 10hps don’t have a lot of compression.
Like you say, the normal scuffs/bruises for an engine of this age, but nothing really bad. Maybe it was overheated and left dry. Go ahead and pull the gearcase to make sure the impeller didn’t break apart leaving pieces throughout the cooling system. Go ahead and pull the head for a better look, then give it the 50 cent hone job with light emery cloth and replace the head gasket, I’m betting the readings will come up to an acceptable level 80-85PSI.