was a bitch then the Skyline GTST takes this to another level. The dash HAS to come out meaning removing these- centre console - gauge cluster - steering column covers - lower dash covers - dash vents - stereo, a/c control unit - passenger side a-pillar trim - dash - impact bar going across the width of car that the dash sits on - unbolting a/c unit - finally the centre vent holding the heater core comes out.A bucket of bolts and a shitload of trim bits later we were wondering where the bloody hell all this goes back in as in our eagerness to pull things out we didn't pay attention to where things came from. All this for a $100 heater core repair so glad we didn't let some other clown attempt the removal as the cost would be shocking.
'Bout the same for the Z if you've go a manual. AT's can be done with the dash in. I've had mine stripped down to impact bar but gave up at that point and climbed underneath. See Ya Garry
to top it off it was pressure tested at 20psi and didn't leak yet there is still coolant on the carpets and in around the A/C unit where the heater core unit connects beside.
Is it the tap seal that is leaking..>> and when the pressure test was done the tap was closed.Just a thought.Cheers
the core was heated to 100deg and then re-pressure tested and it found the leak. So pressure testing with room temp water doesn't always find the leaks.