I got a mess of parts powdercoated using my kiln. I need to get the rest of the red parts too large for me to do ready. Still stripping and dissasembling. Got most of the body work sand blasted. Doing a little finish work and it i going off to the painters.

Having fun now,

Got the engine back and I have just a few things to finish powder coating. Got a table full of new parts. The only thing red that will be painted instead of powdercoated will be the engine block and head. Everything else red is powder coated.

Everything grey, fenders, hood, lights etc is at the painters.

These parts I podercoated in the kiln:




These parts I had comercially powder coated:

Like.

Gary, I had to redesign my end loader for the Yanmar (F17D) and in the process I moved the auxiliary triple spool valve assembly from the loader over to the tractor fender. By doing that I found a way to plumb the tractor hydraulics through the spool valve between the pressure relief and the lift arm controls. In this case it was just a matter of tapping into two ports and making up a rod with o-rings to block off the connecting passage, but even if you had to drill and tap the ports it'd make sense to do it. It works very well, no need for a diverter valve and all of the controls are active at any time. Plus I now have the lift and dump controls for the loader plus one other circuit for the 3-pt hitch top link or a Bobcat attachment for the loader such as a drill or jackhamer, should I have occasion to need one. I don't see any point at all in adding an external hydraulic system when the internal one is more than adequate and spends most of the time idly circulating fluid. Oh, I did just think of one. You said your pump is driven by the PTO shaft I believe? So the clutch has to be engaged for it to work. That could be a bother.

You are probably a little concerned with originality, but aux hydraulics were ALWAYS a high value option with those tractors, and eventually the manufacturers caught on to it. Even a tractor as early as yours is very likely to have ports that can be configured for them. The hardest part has been bending the hard lines that run to the spool valve and from it to the disconnects. I used some 1/2" line I had left over from building the end loader for the supply and return lines, and 3/8" galvanized brake tubing (standard 19,000 psi burst pressure) for the cylinder lines. The larger supply lines will help keep the fluid cool and the smaller cylinder lines are large enough yet compact enough to be easier to route. I'll try to post a photo tomorrow after I have the last line on the tractor.

Jim

I'd like to see it Jim. I did post the question on a tractor forum and the response was (not necessarily correct) that the pump is does not have enough flow. I don't believe that completely because it moves a 2.5" di piston to move the arms internally.

I have rebuilt the pump and I know exactly where to tap in. I had written it off as not worth it but your making me think again.

Oh I'd definitely consider it. My tractor also has about a 2-1/2" internal cylinder and the arms operate at typical speed I'd say. I have twin 2" lift cylinders on the loader and it works very well. I have worked that loader extremely hard in the past and the hydraulics have done an excellent job, has more force than the tractor is big enough to make use of, and very good speed. I did have twin 2-1/2" bucket cylinders (about twice the volume of 2") and they were just a little slow but still acceptable. I've gone to a single bucket cylinder on the new design.

I'll get you that photo tomorrow evening.

Jim

Here is an update. I am getting the tractor back together. As I looked at the hydraulics it was easier then I expected. There is a plug in the corner which means I don't have to do anything now.

Anyway, it's all coming together pretty quickly now. I'll be mowing again soon:

That really is looking good Gary. Love your attention to datail in everything you build.

Thanks Bill, when I started re-doing te engine it wasn't much more work to do everything. In the end the tractor will be darn near new at a fraction of the cost of a new tractor.