Take the gearbox off and you'll see the flywheel. Then unbolt it, put on the new one, torque to whatever Volvo tells you to, and reassemble your boat.
i cannot get the wheel off the blower motor
No, The Volvo C30 is not 4 wheel Drive. It is in fact front wheel drive
The 2014 Volvo S60 has front wheel drive.
The 2005 Volvo S80 has front wheel drive.
The 2007 Volvo XC90 has front wheel drive.
The 2014 Volvo XC70 has front wheel drive.
The 2012 Volvo XC60 has front wheel drive.
The 2003 Volvo S60 has front wheel drive.
The 2015 Volvo XC60 has front wheel drive.
The 2015 Volvo XC70 has front wheel drive.
The 2003 Volvo XC90 has front wheel drive.
The 2012 Volvo C70 has front wheel drive.