Good day gents,
My mechanical prowess has been humbled by a hot 1KZ for over a year now, I need some IH8MUD wisdom
Here's the deal
Symptoms
Cooling maintenance done:
Any input is greatly appreciated.
My mechanical prowess has been humbled by a hot 1KZ for over a year now, I need some IH8MUD wisdom
Here's the deal
Symptoms
- 1994 Hilux Surf 1KZ-TE non intercooled, little over a year ago I replaced the cracked cylinder head.
- Pre Turbo EGTs happily climb over 700 C on long hillclimbs. When I let off the gas temps spike further to 900ish for ~10 seconds. Not super confident that the sensor is telling the truth, but it is decent quality and displays consistent behaviour, although the behaviour is consistently weird. Temp Probably is real, but could be fake
- coolant eeeaasily will go over 105 C on long hillclimbs chugging along at 60-80 km/hr. I stop at this point to cool her.
- Engine starts 2nd crank every time, no evidence of low compression. Doesn't roll coal, no evidence of running rich.
- Fuel economy is decent, ~ 11L/ 100km
Cooling maintenance done:
- Refurbished OEM radiator. Looks brand new.
- New aftermarket cylinder head/ head gasket / studs
- EXT Tranny cooler
- New OEM coolant pump
- New OEM thermostat
- EGR delete
- Intake gunk cleaned
- Resistor mod
- Boost T running max boost before Fuel cut
- Injectors rebuilt by professional diesel shop
- Viscous hub rebuilt
- new glow plugs
Any input is greatly appreciated.