1456 Hydraulic leaks

So I have been working on the 1456 my brother bought and I got it all rewired, new alternator, and charging and running good. But now I have a few leaks. The first is the clutch booster, it is leaking from the top closest to the clutch pedal. I noticed when I had the platform off that the shaft from the clutch pedal comes completely out of the booster which didn't seem right. I have a diagram of it looks like the 66 series. Should I just buy all new seals for it and rebuild it or is something else wrong since the shaft comes out of the booster? I didn't really want to have to buy the spool for inside since it is listed at 367.00. I have never worked on one of these so I don't know what it involves.

The second leak is at the rear of the tractor on the control valve that is connected to the left hand side SCV's. There is a large cap that has a circle in the middle of it and the oil is coming right out of the circle. I didn't know if I should buy a new cap or if there was an o ring or something that is bad.

Thanks for the help

The remote leak is common.Live with it,put on a rebuilt valve,or install a 'bleed-off' hose.I will need to tell you over t6he phone for that...(970)417-1178

There is not that much in the booster to repair the leak. If it works ok, I would just replace the o-rings that seal the ends and probably a new boot. The piston should come all the way back to the snap ring and then the input side of the clutch linkage is set to just take up all slack, no pressure on piston. Then you adjust free travel of clutch on output end. Some one probably tried to set free travel on the input end. On the aux valve (only John Deere's have scv's) it is repairable but a little hard to explain on here. You take the entire spool out of the valve without taking the valve off . Unhook front linkage, unscrew the large nut making sure the pipe comes along. That can be the tricky part if it was installed too tight. Some times you can get a hold of it with a pipe wrench, chain wrench or whatever. Gently pull spool assembly out and after that, well it is kind of hard to walk you through it. A book helps but I have developed my own methods. The leak is almost always from the unlatching piston and there are two different kinds and on the second kind there are two different sizes of pistons. Any IH mechanic should be familiar with those.

I was looking at the diagram. So would I need to get a new piston or would it just need cleaned up with new seals and o rings? I guess I could live with it, but I just find leaks to be annoying and I would like to fix it.