Johnson 140 4 stroke gearcase reinstall

I just put a water pump in for the first time on my 05 140 johnson. I’ve put it all back together and glanced at the service manual. Says to put silicone(I’m guessing sealer) on the surface of where the lowerunit matches up with the engine holder. Didnt’ seem like there was any when I took it apart. Is this supposed to be sealed?

not that im aware of

www.teamcharlestonmarine.com
www.joinrfa.org

Thanks Chris just needed some reassurance.

Mayhem
Pioneer 197