Their were 2 different sizes used and I don't remember when they changed, the ID is what changed to better govern oil flow...
Like Les said, it may be drilled and not have nozzles.
We advised you to use 60g's for a very good reason, use other brands at your own risk.
Your extended first start of the day doesn't point towards the glow plugs, it could be several things, glow time needs extended, fuel is draining back, etc...
On the head work area, the most worthy gains are on the exhaust side, better turbo drive is a plus. The exhaust can show much bigger flow gains than intake if done right...
As a side note I will have more news in the head area the first of the new year , first of it's kind type news...
The 2 I'm aware of weren't only diesel fuel, they both were injecting methanol at high numbers, so that isn't accurate data, we may not be talking about the same 2 also....
A lower lsa will improve the curve of both HP & torque range, thats why my grinds do just that and other changes.
We can...
Try to rotate the motor while pulling it up, if there is sludge build up or the rod is stuck. Another sure way is to crank the motor, the cam gear will push it up, when it does the rod will stop turning the oil pump tho...