Need your help, overheating and many other problems - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Keg · 09-28-2018, 02:34 PM

So about 2 months ago i rebuilt the head (ka24de w/ 233k), during this period i replaced a ton of parts and it ran amazing for about a month and after that it started to develop problems such as over heating.

All of the parts i replaced:
headgasket
valve stem seals
pretty much every gasket i had to remove
relapped all of the valves
new mishimoto radiator
new thermostat
new water pump
had to bypass the heater core as it was clogged and i have no use for it anyways

The problems:
white or blue smoke (really hard to tell) during high rpms, 5k+
overheating at idle and driving but not all the time, only way i can cool it down is hold the rpms pretty high for a little
rough idle
loosing oil but my valve cover is leaking so i am not sure if i am burning oil as well. I would fix it but one of the valve cover bolts closest to the firewall broke off inside (Car came with it broken) and i cant drill it out unless i pull the head again.
The car does run a little rich because i adjusted the dissy to run a little advanced (in hopes of a couple of hps)

What have i done?:
i have bleed the coolant a million times!!!! its usually fine for a little and then starts overheating.
I have looked for leaks and i dont have any, not a single one.

Someone pls help i have spent hours pulling my hair out trying to figure this out.

09-28-2018, 02:34 PM	#1
Keg Join Date: Sep 2018 Location: Texas Posts: 1 Trader Rating: (0) Feedback Score: 0 reviews	Need your help, overheating and many other problems So about 2 months ago i rebuilt the head (ka24de w/ 233k), during this period i replaced a ton of parts and it ran amazing for about a month and after that it started to develop problems such as over heating. All of the parts i replaced: headgasket valve stem seals pretty much every gasket i had to remove relapped all of the valves new mishimoto radiator new thermostat new water pump had to bypass the heater core as it was clogged and i have no use for it anyways The problems: white or blue smoke (really hard to tell) during high rpms, 5k+ overheating at idle and driving but not all the time, only way i can cool it down is hold the rpms pretty high for a little rough idle loosing oil but my valve cover is leaking so i am not sure if i am burning oil as well. I would fix it but one of the valve cover bolts closest to the firewall broke off inside (Car came with it broken) and i cant drill it out unless i pull the head again. The car does run a little rich because i adjusted the dissy to run a little advanced (in hopes of a couple of hps) What have i done?: i have bleed the coolant a million times!!!! its usually fine for a little and then starts overheating. I have looked for leaks and i dont have any, not a single one. Someone pls help i have spent hours pulling my hair out trying to figure this out.