Mastercraft
Well-known member
- Joined
- Dec 4, 2020
- Messages
- 299
- Fluid Motion Model
- R-29 S
My 2017 R29 need the engine mount lag bolts tightened every 50 -100 hours. Engine has 1100 hours. Existing lag bolts are 3/8 x 2 with 5/8 head. One was stripped, so I put 1/2 x 2 with 3/4 head. How long can I go before I hit the fiberglass outer skin of hull? What material is the bolt grabbing? I dried it out with a hair dryer on low and put RTV in hole then put lag bolt in. Roughly how many ft-lbs on bolts? Just for some idea to know if super tight is required. I did not shift engine.