Apparently there are a couple of tricks you can try: you can use zip ties in between the bellows on the accordion boot to put more pressure on the carbon seal, didn't work for me. You can loosen the back ring clamp and move the boot forward a bit and retighten, didn't work for me. And you can try smearing waterproof grease on the face of the carbon seal where it meets the stainless pusher. Didn't work for me. What did work for me, was I replaced the assemblies- new boot, new carbon seal, new ss ring, new o rings inside the ss ring. Mine looked brand new when I pulled them out, but they had failed and now the cavitation is gone. Oh, and if you're driveshaft has more then one indent for your c-clip you can move it one notch closer to the back of the boat. When you push the stainless steel ring towards the back of the boat you will see the c-clip. Have you tried pushing it back before, was it hard to do? Do this stuff out of the water, if you separate the seals in the water it will leak.
That's a whole lot of cavitation, on both sides, crazy. Are you sure your wear rings are ok? Post a pic of them. Also, when you installed the engines, how did you align them? If they are out of alignment those seals won't seal properly.
Basically, I'd suggest just changing the parts, you can buy a carbon ring rebuild kit for pretty cheap. I also replaced my stainless rings but if you choose not to then make sure you at least change the o-rings inside of them.
There may be something else going on - I am not at all an expert. The experts will more likely answer you if you post your problem in the 2 stroke boat section vs the meet and greet. I suggest you do that in case something else has happened, I don't want to feel responsible for more damage.
