beenthere
Super Star Member
- Joined
- Aug 16, 2001
- Messages
- 18,105
- Location
- Southern Wisconsin, USA
- Tractor
- JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold)
Posting this for those who wonder if their FD620D has the plastic gear or the steel gear.
I just tore down my Kawasaki FD620D engine with the intention to change out the assumed plastic gear to the steel. But when getting it apart, after getting the crankcase cover removed and a pic posted, a sharp TBN'r thought it looked like a steel gear that I was going to remove. A magnet confirmed it was steel.
How could I have known earlier? For one, I could have used the magnet when that gear was partially exposed after the water pump was removed.. could have tested with a magnet at that time and saved removing the crankcase cover if no other reason to go further..
The s/n of the Deere 425 this engine was out of was for 1996, and two years before Deere changed and put in a steel gear after mid '98. I had no idea what repairs were done the first 600 hours before I purchased it on craigslist. Has run perfectly for me the last 250 hours, and didn't burn any oil at all between oil changes. But must have been a reason to change out the plastic gear, and there is some indication it may have evolved around a water pump fail (couple bolts showed signs of being new).
So, just saying that removing the water pump is about the easiest way to determine if the cam gear is plastic or steel (and it can be done without removing the engine from the frame). Hope this can help someone...
I just tore down my Kawasaki FD620D engine with the intention to change out the assumed plastic gear to the steel. But when getting it apart, after getting the crankcase cover removed and a pic posted, a sharp TBN'r thought it looked like a steel gear that I was going to remove. A magnet confirmed it was steel.
How could I have known earlier? For one, I could have used the magnet when that gear was partially exposed after the water pump was removed.. could have tested with a magnet at that time and saved removing the crankcase cover if no other reason to go further..
The s/n of the Deere 425 this engine was out of was for 1996, and two years before Deere changed and put in a steel gear after mid '98. I had no idea what repairs were done the first 600 hours before I purchased it on craigslist. Has run perfectly for me the last 250 hours, and didn't burn any oil at all between oil changes. But must have been a reason to change out the plastic gear, and there is some indication it may have evolved around a water pump fail (couple bolts showed signs of being new).
So, just saying that removing the water pump is about the easiest way to determine if the cam gear is plastic or steel (and it can be done without removing the engine from the frame). Hope this can help someone...
