670 input before i purchase???

I am heavily researching the MM M670 super tractors. They seem to be a good value for the money. It seems even restored examples command less then 10k, and maybe 5K would buy a fellow a real decent original.

Also the midwest seems to have a good number of these tractors readily for sale on the ads here, and ebay ect...

Anyone have any input on how solid the 670 is?

Good longevity? Major common problems?

Anything to watch out for on these models?

Is any certain year better then the next?

Any input is appriciated, as I think I may be pretty set on getting one for the sumemer. And would like to educate myself quickly so I may purchase before the grass starts gettin tall. Thank again, Clive Saddler

I also agree a U302 would make an excellent mowing tractor and uses much less fuel than the 670.

The "Super" model of the 670 is probably the way to go. The 1966 and 1967 are the most common years you will find. The 1966 can be easily identified by the brown paint on the motor. I would expect to pay a little more for the 68, 69 models. Some later models feature a 3 speed T/A similar to an Oliver, and a 1000 pto are more common in the later years. They are both options that are desirable among collectors and farmers alike. I prefer the good ol 2 speed TA myself, they are pretty bulletproof compared to the 3 speed in my opinion. (just my opinion). But do try to find one with a good TA cause they are a nightmare to work on.

If you are anywhere near the east central part of the state I have a 1968 super on propane you are welcome to stop and test it out. I also have a JD 3020 of similar HP and size. You can witness the 670 running circles around the deere. Some will even attest to 670s outdoing JD 4010s and 4020s.

If you are not pressed to break the 70hp mark, I may recommend the U302 super which is also a very versatile little tractor. Same general age and appearance as the M670, just around 55 hp though. Both are very reliable and proven workhorses. Regaurds, Aron

My 670 super has been a good tractor for me. It was my first real tractor i bought and have had it since the early 90's. When i bought it the guy said the engine is about due for an overhaul, well its 2008 and its still going. Don't use it much now but it use to make hay all summer and was on the feed wagon part time in the winter. The four cylnder engine does vibrate, or atleast mine always has, i think the gas and propane ones run smoother. The low side of the torques will slip if its been used a lot, but i just run mine on the high side, i think those sprags for the torque are over 300 dollars last time i checked. I put new pto clutches in several years ago and rebuilt the front axle yoke to give it more support. I put a starter off a G1000 on mine, spins it over better when its cold and starts alot better. They are handy little tractors and like others say 3000-4000 will get you a nice one. I paid a 1000 for mine but it was from a neighbor. If you look at diesels, when the engine is warm and running, open the radiator cap slowly to make sure you don't have compression in radiator, its a sign the heads might be cracked. Never had any problem with my 670, but we have had some trouble with g1000 we have got with cracked heads. Good little tractors, and can be used for just about anything. I think the supers have a better hydraulic and steering system, but the drive train as far as i know is the same. Good luck and let us know if you find one.