Fairly recent post so I'll just resume on top of it. I now have a V2 MD 180 w/o kick-up drive that came with a 2017 AI. I'm in the process of ordering some maint. parts (prep for a full tear-down and clean, rebuild, lube and 303 Aerospace protect). I've ordered the 12 necessary idler pully bearings, it's looking like I might need to order part of the 30 total drum bearings from Mariner Sails and the remaining from possibly one or two other sources. I'm surprised these bearings are so scarce. Finally, the main reason I can here is because of the response Matt gave to the OP:
81471 BEARING MD180 SPROCKET AFT
81478 BEARING MD180 SPROCKET FWD
^@Matt Miller, are these the bearings for the MD 180 sprocket system? These are vastly different from my V2 GT drive sprocket bearings. There's a chap that has a video of the breakdown:
https://youtu.be/7XCgb8Sjbi0?t=1296So what I need are the following:
- Roller bearing count and part number for the aft sprocket
- Roller bearing count and part number for the fwd sprocket (assume the same PN as the after sprocket bearings?)
- Roller bearing count and part number for the fwd most sprocket section (these are very short perhaps 5mm in length?)
Thank you,
Roy