case 646

  1. D

    Retrofit John Deere 318 Power Steering into a Case 646?

    I have a John Deere 318 garden tractor that's a parts machine. I'm wondering about the possibility of pulling the Power Steering components out and putting them into my little Case 646, which doesn't have PS, but already has a hydraulic system operating the front loader. Can one of you...
  2. L

    Case 646 loader tractor

    I have a 646-76 Case loader tractor and the problem with it is a sluggish hydrostatic drive. It performs better in low range than high range. I bought this unit from my brother-in law who has since passed on. He had found it in pretty poor shape and got it for a song. It barely drove when he...
  3. M

    75 case 646 loader backhoe trouble

    today I was digging a trench all was working fine I stop working to eat dinner then after dinner I went back out to finish and when I tried to lift the boom for the backhoe it would not stay up it would drop as soon as I let the handle go . the bucket work as it should and it will extend like it...
  4. L

    case 646 problems

    Hi Everyone, I'm new to this forum and would greatly appreciate any feedback from someone who knows more about this tractor than me, I have a case 646-77 model frontloader compact tractor that i'm getting back in shape to sell and when the engine (16 hp Onan) runs for 20 -30 minutes it suddenly...
  5. P

    CASE 646 Project

    Hello everyone!!! My name is Mirek but I prefer SKUTER Ferst littil histry . I get my CASE 646 bifor 2000 ,disasamble wyth broken engine .First deside to extend frame to get more speis for feet, extention 6" front of transmition dissasamble complitly salage allwhot wos possyble .After clining...
  6. T

    Parts for a case 646

    Hello, I'm new to this forum so any help would be great. I just bought a 646 with a Davis D-100 backhoe. While on a job the left rear axle slid out. It appears that the end of the shaft is eaten off and will no longer hold the c clip. I am looking for an axle but they are out of production. Does...
  7. G

    Loader  Case 646 hydraulic drive motor swap

    My hydraulic drive motor that bolts to the rear axle on my Case 646 loader tractor is bad. Will a drive motor off a Case 444 lawn tractor be the same. My code is a 355 6 V and the one I found is a code 156 6 V So what is the difference?
  8. M

    Case 646 blowing oil

    Hi Guys, I have a Case 646 with the original Onan 16.5 CCKA (1975 I think by the S/N). It blows some oil out of the right cylinder muffler and the air cleaner looks oily. The exhaust is also way cooler and bluish on that cylinder compared to the other. Could this be because of bad intake and...
  9. M

    Case 646 Parts

    Hi I just registered into this forum. From what I see you guys have an awesome site going here. Kudos! I just picked up a 646 which is pretty sound as far as hydraulics go. I will need to put an engine in it fairly soon but will get the last out of the 16.5 twin Onan. One cylinder is blowing...
  10. G

    Case 646 Lacking Hydraulic power help needed

    Hello all, I am a new owner of a Case 646 Tractor, I am having a problem with lack of hydraulic power, I have had a new banana plate made (having a few extra made also) and fixed the forward reverse problem, I now have excellent travel in the control valves and good forward and reverse speed...
  11. escavader

    WHOS got a case 646 ?

    HI FOLKS, My friend HARRYS got a 646 hes had forever.Its a nice little tractor,but its getting tired.Iam gonna attempt to rebuild his 2 cylinder ONAN this summer.It also needs a litle work to the hydro tranny.Im usually on the KUBOTA side of TBN,but i thought id hook up with you guys and see...
Top