Actually, done that also sir yung pa-check ng opening pressure, spray pattern at cleaning the 4-nozzles. All passed within the 185kg/cm2 opening pressure. spray pattern also in well distributed fine mist spray on all 4-orifices. Meron po akong maintenance manual ng isuzu 4J series engines kaya alam ko po yun. yes, ganun di po sa engine oil for the manual transmission as per manual. No problems po ako sa clutch, brakes, change oils and other fluids ng hilander ko 'cause ako mismo gumagawa nun.
Itong white to bluish smoke lang talaga na medyo disturb ako at nkaka-annoy na nakakahiya na masyado.
Totoo po yun, ang 4ja1 engine natin ay ang pinaka tipid sa lahat ng diesel engine in terms of engine oil and fuel economy compared with its counterpart belonging on the same engine displacement.
From toyota 2L, mazda B2500, Mitsu 4D56 lahat po ay around 6Litters ang engine oil while 4JA1's only 4~4.5 Liters. Laking tipid talaga. Salamat po sa mga comments ninyo.