Current Plan:
Remove head and inspect.
couple of questions:
1.) Trying to figure out the correct engine specs, my valve cover shows this: 3TNB84-UAP image:
Shared album - Eric Rujiraviriyapinyo - Google Photos Under valve cover i see: "X3" and "TN82" image:
Shared album - Eric Rujiraviriyapinyo - Google Photos The yanmar thread on motors for the FX24D specifies: that it has a 3TN84U-A link:
https://www.tractorbynet.com/forums/yanmar/11226-engine-your-yanmar-15.html#post4024340 I found a this service manual:
http://golftechs.us/Manuals/JD220dieselengine.pdf Looks like my engine in the 2nd section of the manual. It specifies:
Shared album - Eric Rujiraviriyapinyo - Google Photos
Compression Pressure
3TN82, 3TNA82, 3TN84 (870 CUT, 955 CUT) . . . . . . . . . . . . . . . . . . . . . 2448 kPa (355 psi)
3TN84 (3014 OEM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2158 kPa (313 psi)
Maximum Difference Between Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490 kPa (71 psi)
Not too far off from my compression tests. Is this service manual the correct one? or close enough?
2.) Oil Pressure Dash Light: so throughout this process of cranking the motor the Oil light was for the most part lit up. A few times i saw it go out after cranking, After changing the oil and getting the starter cleaned up the light has seemed to go out for good. Oil pressure light would presumably be lit on startup after its been sitting right? wondering why my oil light is not lit on startup.
3.) Oil change: changed the oil, when i poured the old oil out of the catch the bottom of the oil had a few small pieces of what looked like thin metal shavings like no larger than 2 millimeter, and thin like gold foil thin. and lots of fine shimmery metal when the last of the oil poured out. It was under direct sunlight and it was literally like fine glittery oil. I know thats not a great sign but thought id mention it.
Exhaust manifold, intake manifold came off with no issues, i did soak the nuts in pbblaster overnight but and they came off easily, seemed almost a little too easy. A pretty cheap impact driver took them off with almost no fight.