John Rowehl Posted January 28, 2022 Share Posted January 28, 2022 On 1/26/2022 at 6:14 PM, DaveinSD said: I have an 86 hydro which is basically a 666 with a hydro. Super handy tractor, I keep finding things it’s great for. Great for all that jobs that one of the big tractors is just too much. 86 Hydro was in the 86 series. Hydro 70 was in the 66 series range. Not sure what is being said here. Were there any mechanical differences between a Hydro 666, Hydro 70 and Hydro 86? Quote Link to comment Share on other sites More sharing options...
Chris826 Posted May 5, 2022 Share Posted May 5, 2022 On 1/28/2022 at 8:07 AM, John Rowehl said: On 1/26/2022 at 6:14 PM, DaveinSD said: I have an 86 hydro which is basically a 666 with a hydro. Super handy tractor, I keep finding things it’s great for. Great for all that jobs that one of the big tractors is just too much. 86 Hydro was in the 86 series. Hydro 70 was in the 66 series range. Not sure what is being said here. Were there any mechanical differences between a Hydro 666, Hydro 70 and Hydro 86? Almost no changes, other than a turn signal on the 86 and a shift to the D310 midway through the production run. Quote Link to comment Share on other sites More sharing options...
pms1961 Posted May 5, 2022 Share Posted May 5, 2022 I have a triple six and a 686 both with D312's.Shifters can get sloppy and brakes need regular maintenance...overall darn good tractors. 2 Quote Link to comment Share on other sites More sharing options...
MD Puller Posted January 13 Share Posted January 13 I have a 666 for pulling. Has anyone ever taken the lift assembly off the rear ? I don't need it and it looks heavy. Mine has the 312 but looking at a 360 Quote Link to comment Share on other sites More sharing options...
Michigan No Till Posted January 13 Share Posted January 13 Germans won't start up when it's cold if you don't pull the fuel shut off half way out (manual calls it fuel enrichment position IIRC) Throttle has to be at idle position also or it will never start cold. 1 Quote Link to comment Share on other sites More sharing options...
Steve C. Posted January 14 Share Posted January 14 On 1/26/2022 at 12:57 PM, nepoweshiekfarmalls said: They are the little tractor that could. Lots of power in a small package. I love mine! The shifters can get worn and need attention in the dash. Brakes need adjusted from time to time. Otherwise, very trouble free machines. The straight pipe and pyrometer tell me that one has a windmill on it. Is it yours? A guy would have to be careful with the fuel screw for sure. Alan and Sledge, there's little if no difference between the 666 and 686, right? Quote Link to comment Share on other sites More sharing options...
nate Posted January 14 Share Posted January 14 12 minutes ago, Steve C. said: The straight pipe and pyrometer tell me that one has a windmill on it. Is it yours? A guy would have to be careful with the fuel screw for sure. Alan and Sledge, there's little if no difference between the 666 and 686, right? I’m almost positive the drivetrain is the same. You could also get a German diesel in a 686 Quote Link to comment Share on other sites More sharing options...
Sledgehammer Posted January 14 Share Posted January 14 2 hours ago, Steve C. said: The straight pipe and pyrometer tell me that one has a windmill on it. Is it yours? A guy would have to be careful with the fuel screw for sure. Alan and Sledge, there's little if no difference between the 666 and 686, right? Very little I know of besides some cosmetics. 2 hours ago, nate said: I’m almost positive the drivetrain is the same. You could also get a German diesel in a 686 Later 686 got the German diesel. I wanted the IH 312 but there is nothing wrong with the german. Quote Link to comment Share on other sites More sharing options...
Alan Dinan Posted January 14 Share Posted January 14 3 hours ago, Steve C. said: The straight pipe and pyrometer tell me that one has a windmill on it. Is it yours? A guy would have to be careful with the fuel screw for sure. Alan and Sledge, there's little if no difference between the 666 and 686, right? As someone said, my 86 has turn signals, I don’t think the 66 had them. Mine also has the 312. I don’t have any experience with the German engines, just glad I don’t have one, now. (Parts availability) Quote Link to comment Share on other sites More sharing options...
DaveinSD Posted January 14 Share Posted January 14 Mine has the IH 312, good engine, mine blows quite a bit of smoke out the draft tube at idle, but cleans up once you up the rpm’s. Also doesn’t like the cold, have to make sure it’s close to an outlet to plug in the heater in the winter, then it starts fine…. Quote Link to comment Share on other sites More sharing options...
Jacka Posted January 14 Share Posted January 14 3 hours ago, DaveinSD said: Mine has the IH 312, good engine, mine blows quite a bit of smoke out the draft tube at idle, but cleans up once you up the rpm’s. Also doesn’t like the cold, have to make sure it’s close to an outlet to plug in the heater in the winter, then it starts fine…. I have a Hydro 70 with the 312.Bought it used almost 20 years ago and puffed like a dragon out the blow by tube.Worried me it was ready to blow and I got stuck.But never did anything else smoke,steam, heat or whatever it is.No oil to speak of comes out.Tractor starts great in hot or cold weather with good batteries, is my winter snow plow tractor. Great motor other than very loud and noisy.I must wear ear plugs,even bought a brand new muffler years back from IH when I bought it, never did a thing. Quote Link to comment Share on other sites More sharing options...
Michigan No Till Posted January 14 Share Posted January 14 My 756 with m&w whistler had a 22"rusted bent pipe when I bought it. Bought a 4'stick of of chrome and a rain cap from Throne before he closed. Much more tolerable to my old ears now! Have to be careful of the branches, I'll put my new pole saw to work before spring. Quote Link to comment Share on other sites More sharing options...
nepoweshiekfarmalls Posted January 15 Share Posted January 15 On 1/13/2023 at 6:38 PM, Steve C. said: The straight pipe and pyrometer tell me that one has a windmill on it. Is it yours? A guy would have to be careful with the fuel screw for sure. Alan and Sledge, there's little if no difference between the 666 and 686, right? Yes, that is my 666, that I refer to as "Lucy". She has an M&W turbo with pyrometer and a Thomure chrome stack. I have never had it on a dyno, but she sure blows black smoke when you crack the throttle! My favorite tractor for parades and tractor rides. That photo was taken at the Roundup in DuQuoin. The 666 and 686 have almost no difference between them. Just the change from the 312 to the 310 German diesel during the 686 run. The stripes on the hood were updated to reflect the larger 86 series machines. Quote Link to comment Share on other sites More sharing options...
Steve C. Posted January 15 Share Posted January 15 18 minutes ago, nepoweshiekfarmalls said: Yes, that is my 666, that I refer to as "Lucy". She has an M&W turbo with pyrometer and a Thomure chrome stack. I have never had it on a dyno, but she sure blows black smoke when you crack the throttle! My favorite tractor for parades and tractor rides. That photo was taken at the Roundup in DuQuoin. I'm sure I saw it then but didn't realize it was yours. That's the roundup where we met, IIRC. Quote Link to comment Share on other sites More sharing options...
nepoweshiekfarmalls Posted January 15 Share Posted January 15 3 minutes ago, Steve C. said: I'm sure I saw it then but didn't realize it was yours. That's the roundup where we met, IIRC. Indeed we did! Quote Link to comment Share on other sites More sharing options...
Steve C. Posted January 15 Share Posted January 15 1 minute ago, nepoweshiekfarmalls said: Indeed we did! Hey, I IIRC'd! Woohoo. That's happening less and less these days. Quote Link to comment Share on other sites More sharing options...
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