Bought this machine last year. 93 L553 with 3500hrs. Been a good machine but has always been hard starting even when warm out. Finally took the time to compression check it and #1-330 psi #2,3,4-220psi. With oil they came up to around 350 so hopefully I'll luck out with a mild rebuild without machine work. Regardless I need to pull the engine. I'm wondering if I should separate the pumps from the engine or pull them out with the engine. Those bolts holding the pump the the bell housing look tricky to get out. Any input is appreciated.