Just about made my 14 year old boy crap himself though. I was wiggling and jiggling wires on the right side above the brake pedals while holding the key on and it turned over for just a second once. I'm sure that is engine rating and not pto or drawbar rating. Heck' an engine from a 790 or the 3005 might just bolt up too, you'd be looking at 27 to 30 hp, depending on the year of the 790. I went out today to start up my 670. This would be my first tractor.
I had the 770 for a couple years, great bullet proof little tractor, and like I said, it's basically the same tractor except the engine and tires. I had removed the battery in the fall brand new in October and stored it in my heated garage this winter. Mickey, the engine is 18. I assume this tractor is not very popular? I don't know this for sure but that is what I think the game is with dealers and used equipment up here. I let it run for a while and then shut it off, tried to start it up and same thing. Good luck getting it worked on or rebuilt.
But I'll worry about that later. Without going the turbo charger route you are pretty much limited to cam change and increase fuel delivery. I run this tractor weekly, 4 to 5. I will look into a 770 engine, but I will still see if I can squeeze some more hp out of the engine I already have. That might be hard to find.
Sometimes the rpm will drop about 100-200 when in thick grass, which means I have to either slow down, or raise the deck. Please feel free to contact us if you have another attachment picked out from our website that you are considering attaching to your John Deere 670 and want to know if it is a good fit. Did you hear any clicks like the starter bendix? The easiest thing to do is jump off a known good battery and see if it starts then. The terrain in my yard is very rough like baja with a steep incline going across the front of the property up to the house. The guy is out of town and supposed to be around this Saturday, so I hope to hook up with him and take a look.
This is accompanied by black smoke out of the exhaust. If they sell the used one out front they know they may not get another for awhile and loose that lure to bring people in. One of those was a 670 being sold by a Maine dealer. I put it on the charger yesterday just to make sure it was good to go. I figured the front end of the 425 would stay down when I dumped the clutch since it still has the snowblower on it. Do I hook the positive battery terminal to the post where the big red wire goes and jump to where the small white wire plugs in? The displacement is 879 cm3.
Keep us posted on the 670! I had not considered a deere as the price on them seems way way out till I got a call from a freind who has a friend with the 670, all I know about it is it is 4X4 and it has a mower not sure what type. Last week it turned over 1,400 hours. Also just to be sure do you mean the engine stalls when put in gear? You'll be better off going up and down a slope. I got rid of my 770 several years ago so I can't remember if there are more. I have a John Deere 670, 3-cyl Diesel. My 670 did a fine job with that. I went back here on this forum 25+ pages and can not find any info.
Torn it all the way down, nothing looked bad, cleaned all the brushes with emery cloth but it's still not doing a thing. I'll be happy to help! I came out this morning and unhooked the battery, still checks 13V. As shown above, we have hand picked a variety of implements based on the John Deere 670 specs that we recommend and carry to fit this tractor. I tried jumping the starter and couldn't get it to do anything. The loader a 60 has a capacity of about 700 lbs at full lift. I know it's not the fuel solenoid as mine don't work, at least not plugged into the tractor. I need a tractor for work ,not for show or collecting.
That ad has been on Machine Finder for at least two years. I also have it hooked up to my big battery charger set to jump start. As Irwin mentioned you could also go with an engine swap from a sim sized model. You'll also want to add pressure to the front tires trust me, if you don't add pressure, the tires may roll off the rims. Not sure what you think you will accomplish with a complete tear down.
The overall size of the tractor is about twice the size of a 455, but with about 5 less hp. I would not want to think of what the cost to ship one would be. The engine yes, a Yanmar. Any suggestions about how to get a about 5-7 more horsepower out of this engine would be much appreciated. Check the pto switch position, you might have hit it. The safety switches on this and the 770 are the same. The tractor was made by Yanmar in Japan.