My EGTs still seem hotter than they should be. Let me tell a tale...
I have a 1993 KZJ78 with 249K kilometers on the clock. Purchased this vehicle from an importer last December.
Things done:
3” dump pipe and exhaust.
EGR delete and intake manifold clean
Spill control valve turned back about 1/3 turn from when I acquired it.
Timing set to factory specs.
Aftermarket aluminum radiator came with vehicle.
Tridon 170 degree t-stat
New coolant
New fan clutch, but still need to set temp and change out fluid in it.
Current situation:
Water temps measured at top hose rarely exceed 200F and if they do, it is not by much.
EGTs however, can climb to 1300F (measured post turbo) in a heartbeat if I am not vigilant and watching my gauges. This only happens when going up a hill.
No black smoke except I were to really step on it.
33” tires without a lot of weight like bumpers, equipment, etc.
This vehicle (even though it has a 3L engine and is working at 6k to 9k feet above sea level) has to be capable of keeping temps down better than this. What am I missing? I know it ideally needs an Intercooler and that is in my long term plans, But shouldn’t I be able to keep temps down better than this? Fuel pump? Timing? Cracked head that just isn’t showing up yet because my bubble test is being done without load on the engine?
??????
I have a 1993 KZJ78 with 249K kilometers on the clock. Purchased this vehicle from an importer last December.
Things done:
3” dump pipe and exhaust.
EGR delete and intake manifold clean
Spill control valve turned back about 1/3 turn from when I acquired it.
Timing set to factory specs.
Aftermarket aluminum radiator came with vehicle.
Tridon 170 degree t-stat
New coolant
New fan clutch, but still need to set temp and change out fluid in it.
Current situation:
Water temps measured at top hose rarely exceed 200F and if they do, it is not by much.
EGTs however, can climb to 1300F (measured post turbo) in a heartbeat if I am not vigilant and watching my gauges. This only happens when going up a hill.
No black smoke except I were to really step on it.
33” tires without a lot of weight like bumpers, equipment, etc.
This vehicle (even though it has a 3L engine and is working at 6k to 9k feet above sea level) has to be capable of keeping temps down better than this. What am I missing? I know it ideally needs an Intercooler and that is in my long term plans, But shouldn’t I be able to keep temps down better than this? Fuel pump? Timing? Cracked head that just isn’t showing up yet because my bubble test is being done without load on the engine?
??????