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I have a shop in town that said they would pressure test, clean and surface for $125. I'm going to drop it off tomorrow and have it done. Injectors are at the pump shop being tested.

I laid the head valve side up on the bench and made sure it was flat. I sprayed brake cleaner onto each valve so that they were somewhat submerged. Saw no leak down after 20 mins. I'll check tonight when I get home, but figured it would evaporate by now.

I hadn't cleaned it up very well when I took the picture. I will likely take it and have it checked, don't want to waste a new gasket and head bolts for nothing

I will check on that, the OEM listed 2 gaskets for it, but then one was discontinued, so there seems to be only one option. I will look at it, and I do have the original still. Good thought!

No other sign unfortunately. I probably jumped the gun on tearing into it, but didn't want the problem to get any worse.

I was using it one day and noticed after sitting idling for a few minutes there was a good size puddle of oil on the ground coming from the breather tube on the valve cover. Engine was running fine, wasn't hot, I was just grading the driveway. I started researching online to see what would...

When I started this whole fiasco, tractor was running fine, normal power, drove it in the shop and shut it off. Tractor was never moved, engine wasn't turned over, nothing. Literally took the head off, put new gasket on it, put head back on with original head bolts, torqued them and no...

I don't entirely disagree on the timing, but how did it get out of time? That's what puzzles me. I pulled the injectors, I am going to have them cleaned up and pop tested. Keep in mind, tractor only has 900 or so hours on it, although 30 years old. I will check the valves for leaking while...

Well after banging my head against the wall on this, I decided to pull the head back off. I have ordered a new head gasket and a new set of head bolts. I believe I misunderstood the compression specs in the manual, I believe it is supposed to be 356 psi. All four tested the same at 305 ish...

I checked the shop manual again for compression, it says 356 psi +/- 50 psi. I measured it at 305ish, so I think that's within spec. I went through and adjusted the valves, book said .012 on intake and exhaust.

Believe me, I've checked it. It is working properly....

Push rods were all in good shape, i haven't checked the valves. Tractor has 980 hours on it.

I just did a compression test on all 4 cylinders. Each one was a scoche over 300 psi.

Well, when I pulled the tractor in the shop, I removed what was necessary to get the head off, I never turned the engine, moved the tractor, anything. Just removed the injection lines. I have fuel squirting at all 4 injectors. Nothing has changed 🤷‍♂️

So still working on my 2120 Ford NH. Had a blown head gasket (believed), dismantled what was needed to pull the head off. Gasket looked good other than one small spot, where I believe it had blown through between the cylinders. Anyway, cleaned up the head, block, everything looked really...

Be gentle please, but I am at a loss. The starter quit on me while trying to bleed the fuel system, I know.. Anyway, I ordered a new one and it seems as though it is turning the engine the wrong way? It sounds completely different turning over, and I heard a click every revolution on what...

That's reassuring, I'm going to check compression and see if that shows something. Thanks for the input!

Afternoon everyone, I have a 1996 Ford NH 2120, under 900 hours, starts right up, runs good, has plenty of power. The other day I was grading my driveway and had stopped to pickup some rocks. When I got back on, I happened to look down on the right side on the ground and saw a small puddle...