No compression in any cylinder


#1

My supercharged Sea-Doo has no compression in any cylinder. No previous supercharger failures.


#2

No matter what it is, you’re going to be pulling the heads off. Could be valves, could be pistons, could be gasket. Likely isn’t supercharger related


#3

My RXT smokes, burns oil. I thought it was the supercharger, had it rebuilt but that didn’t resolve the problem. I checked the strainer in the PTO and it was spotless. This ski only has about 130 hours on it. Compression in all the cylinders is 150lbs. I noticed that after running it for a few minutes the oil level drops significantly, let it sit for a while and the oil level comes back up. This may be normal for a dry sump? Is it possibly a bad EGR valve or equivalent? Any help would be sincerely appreciated.
Thanks
Frank


#4

It’ll drop when you run it as all the oil is in the lubrication system. Was your oil filled to the top dipstick mark or inbetween them?