Jpm757
Well Known Member
I have purchased 2 Lycomings from Vans in the past 6 years, an IO-360 M1B and an O-360 C1A. Both engines are advertised as "Constant Speed ready". Both engines were delivered with a governor mounting pad, oil line and a plug in the front of the crank. Remove front plug, add a governor and good to go for constant speed. The O-360 will be a fixed pitch setup, and according to the Lycoming Service letter I need to remove the front plug, pierce the rear plug, remove governor mounting pad, oil line, replace front plug and plug front of case. Numerous posts have mentioned simply removing the rear plate on the governor and replacing it with a cover that has a machined slot to allow oil to flow out of the crank and back into the crankcase. Both engines were delivered WITH the above mentioned plate. I called Lycoming Tech Support and got the following response. Both engines as delivered are in the same configuration as they were run in the test cell, therefore according to Lycoming you can run these engines right out of the box for fixed pitch operation. However, on the advice of the Tech guy we both agreed that It would be prudent to follow the Service Letter procedures to ensure warranty coverage.