The problem was getting to top bolt of starter without taking solenoid off,and then is still a pain...However, by taking off outside of belt housing and drill 1/2 in hole in line with top bolt of starter through inner belt housing. The project can be done in about 1 hr. Once starter is installed used silicone gasket maker to plug drilled hole....thanks to those who replied..hope this helps others with 620i gators..