Joe1
Platinum Member
Ray:
The 670 was made from 1989 to about 1998. While Deere's demand a high price, they are reliable as rocks. The 670 was a little brother of the 770 which was replaced in 1999 by the 790. The 670's a few inches shorter than the 770 and about 200 lbs lighter. I've had a 98 770 for almost four years and like yuo it was a first tractor for me, basically a California city boy. The maintenance is simple for anyone with basic mechanical skills. The only parts I've replaced have beenoil, oil and fuel filters and I changed the hydraulic fluid and filter, and a battery. It had 223 hours when I bought it and it now has 471.
Hours on tractors like this are at rated rpm. In my case it 2,600. One hour at 1,300 rpm would register as 1/2 hour. The 670 has a smaller, higher reving engine which has rated hp at 3,000 rpm.
My 770 doesn't burn a drop of oil and starts first time, every time. The engine if properly maintained will probably go 3,000 hrs or more. I will get a professional service at 500 hrs because I want the valves adjusted. The Yanmar engine is very well built and has been used in marine applications for years. Deere could use anyone's tractor to sell as a Deere and they choose the Yanmar because they are bullet proof.
Good luck with your purchase.
The 670 was made from 1989 to about 1998. While Deere's demand a high price, they are reliable as rocks. The 670 was a little brother of the 770 which was replaced in 1999 by the 790. The 670's a few inches shorter than the 770 and about 200 lbs lighter. I've had a 98 770 for almost four years and like yuo it was a first tractor for me, basically a California city boy. The maintenance is simple for anyone with basic mechanical skills. The only parts I've replaced have beenoil, oil and fuel filters and I changed the hydraulic fluid and filter, and a battery. It had 223 hours when I bought it and it now has 471.
Hours on tractors like this are at rated rpm. In my case it 2,600. One hour at 1,300 rpm would register as 1/2 hour. The 670 has a smaller, higher reving engine which has rated hp at 3,000 rpm.
My 770 doesn't burn a drop of oil and starts first time, every time. The engine if properly maintained will probably go 3,000 hrs or more. I will get a professional service at 500 hrs because I want the valves adjusted. The Yanmar engine is very well built and has been used in marine applications for years. Deere could use anyone's tractor to sell as a Deere and they choose the Yanmar because they are bullet proof.
Good luck with your purchase.