achris
More fish than mountain goat
- Joined
- May 19, 2004
- Messages
- 27,468
Thought I'd do a quick video for you guys using my new 'drive lift'... It's been a couple of years since my drive was removed, so I thought this would be a good opportunity to kill two birds with one brick.... How quickly things can go south!
Used the lift to remove the drive. Very easy. Just loaded up the lift with the drive weight, pushed the rear trim cylinder anchor pin through, removed 6 nuts and washer and pull. Drive came straight off. Checked the engine alignment... Perfect. More
Got a flashlight and had a peer in at the gimbal bearing. That was looking and feeling good too... But, a small pool (about a teaspoon) of drive oil in the aft end of the uni bellows. Hmmm. Front drive seal leaking... Oh well, it is 12 years old, so yeah, that's fair. I had the parts I needed in the 'spares' box, so drained the oil, then removed the top cover and front cover nut, then pulled the yoke and drive gear out. Checked the top bearing outer race in the cover and it's not looking so good. Go to clean the surface and the race spins, in the cover. Ok, this is bad. Pulled the race out and this is what the inside of the cover looks like....
Here's what's left of one of the pre-load shims under the race. (those 3 were originally the same size )
So, a new top cover required (apparently it comes with a new bearing and a shim set :thumb. As it was getting late and the local shop had already closed I though I'd pull the rest of the driveshaft housing down ready to start assembling when I get the parts. Had a good look at the upper driveshaft lower bearing and it's also not looking too swish...
So, from a single 'let's have a quick peek inside' I found a grenade with the pin pulled...
As much as I'm not happy about this, I'm happier than it exploding 10 miles out to sea on a great day....
I'll update this thread with the repair and the original plan, the video of the drive lift in operation.... :facepalm:
Cheers all...
Chris...........
Used the lift to remove the drive. Very easy. Just loaded up the lift with the drive weight, pushed the rear trim cylinder anchor pin through, removed 6 nuts and washer and pull. Drive came straight off. Checked the engine alignment... Perfect. More
Got a flashlight and had a peer in at the gimbal bearing. That was looking and feeling good too... But, a small pool (about a teaspoon) of drive oil in the aft end of the uni bellows. Hmmm. Front drive seal leaking... Oh well, it is 12 years old, so yeah, that's fair. I had the parts I needed in the 'spares' box, so drained the oil, then removed the top cover and front cover nut, then pulled the yoke and drive gear out. Checked the top bearing outer race in the cover and it's not looking so good. Go to clean the surface and the race spins, in the cover. Ok, this is bad. Pulled the race out and this is what the inside of the cover looks like....
Here's what's left of one of the pre-load shims under the race. (those 3 were originally the same size )
So, a new top cover required (apparently it comes with a new bearing and a shim set :thumb. As it was getting late and the local shop had already closed I though I'd pull the rest of the driveshaft housing down ready to start assembling when I get the parts. Had a good look at the upper driveshaft lower bearing and it's also not looking too swish...
So, from a single 'let's have a quick peek inside' I found a grenade with the pin pulled...
As much as I'm not happy about this, I'm happier than it exploding 10 miles out to sea on a great day....
I'll update this thread with the repair and the original plan, the video of the drive lift in operation.... :facepalm:
Cheers all...
Chris...........
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