Hi Nick and Everybody!
I've got the 2.4TD 2LTII engine in my 1990's LC. The engine has been washed 2-3 times in the last 3 weeks and now it's sure, we have to take off the cylinder head, because the oil is leaking from that area (in the front at the left side, where the engine number is, in the rear at both sides). I hope it's only a faulty gasket, because it hasn't got any coolant loss, power is constant and the engine starts and runs smooth.
1. I'm on the way to order the parts like engine overhaul gasket kit, cylinder bolts- and gasket. What do you think? Should I buy original parts, or are Elring/Victor Reinz parts good as well?
2. I've got some manuals for the car. But I'm not sure which one to use because the bolt torquing powers are not the same. Manual 1.: three passes tighting, torquing (118Nm) on the final pass. Manual 2.: 1. pass torquing with 78Nm, 2. pass 90° retighting, 3. pass additional 90° retighting.
3. Can I find somewhere a correct manual for the engine 2LTII?
It's possible the cylinder head has been replaced in the past and not torqued correctly. Even some Toyota OEM cylinder heads seem to need a re-torque.
Based on your description, I'd highly recommend trying to re-torque the head before going through the effort of removing it entirely. A friend of mine retorqued his 1HDT head (also because of a small oil leak), and it fixed his problem entirely. This would save you a LOT of effort.
RM520E and RM582E at this link are the manuals that cover the 2LT-II engine. Cylinder head torque figures in that manual are correct. It's a real work out! Help! - https://forum.ih8mud.com/threads/help.1191714/#post-12892663