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Major problem with 318

4972 Views 21 Replies 10 Participants Last post by  900thun
Well I want to say this is my first post on any tractor forum. I bought my tractor with 600 hours from a coworker. The only thing wrong with it was the paint was starting to chip since it was left outside in the cold Maine winters. I have done a dramatic restoration, paint job,degreased frame, new tires, controls, etc.

Right now I'm having a hard time trying to diagnose what the problem is now. This winter I was very low on hydro fluid, I read somewhere that I could add trans fluid dexron 3 to he hydro fluid. I added it and it seemed to be fine and then I noticed the reverse speed was slower. Not sure if this was related to he difference in fluid.

Second issue is that when I move the throttle forward or reverse there is a jerking motion that is quite severe. I checked the linkage and I didn't seem to notice anything out of the norm. But I'm not quite sure what to look at.

Third issue is that when the tractor is off I can just roll it around. Is this a normal thing. for some reason I thought it should not move at all. What could cause this to happen.

Thank you for all the help. I'm trying to keep this tractor in tip top shape
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Ben D.
Welcome to the Best JD forum.
As far as your second issue, you may need to replace your shock absorber for the hydro. It is located under your battery tray. Easy fix and makes a big difference giving you a smooth operation as like new.
As far as your steering cylinder leak, they are repairable, rebuild able. I believe there is a member on this forum that will do that rebuild. I do not remember the name of the member. You could do a search on this forum.
I do have a spare power steering cylinder that is used. It came with a purchase of a JD 318 that was bought and later sold. As far as the condition of this cylinder, I can not say. Look good on the outside. Has tight pivot points with zerk fitting. I will offer it to you for free if you will pay for the shipping. If interested, I can send a pic.
Bob C.
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