Copression of 4d56TDIC?

[turbodiesel]

What's the allowable compression of a 4D56TDIC engine?

My readings ranges from 345 to 355 psi. Is it good or bad?

[rlp1099]

turbo

4d56 cylinder compression pressure

Min= 1,920 kPa x 0.145 = 278.4psi

Max variation= 300kPa x 0.145 = 43.5psi

adding both psi values gives you 321.9 psi

according to pajero expert jgatutubo your readings are ok

take note values are for 4d56 only

there are other factors you may want to look at when you do a compression check so you know mechanical condition of upper end (pistons, rings, valves, head gaskets) of your engine

sepcifically if compression is down due to leakage caused by worn rings, defective valves or seatsor a blown head gasket.

NOTE: engine must be at normal operating temp and batt must be fully charged for this check...

HAYNES Pajero Repair Manual 2E-4 2E-6

[turbodiesel]

Thank you rlp.

At least I know that my engine is healthy.

My next move is to replace the air and fuel filter and calibrate the fuel system.

[garyq]

What's the allowable compression of a 4D56TDIC engine?

My readings ranges from 345 to 355 psi. Is it good or bad?

bro saan ka nagpa-test?