you_nes Posted June 22, 2012 Report Share Posted June 22, 2012 Has it ever actually boiled? The needle on your avg KE55 dash is not particularly accurate. Mine are over half b4 the thermostat is even open, operate at above 3/4. Got curious about this once so I put a thermocouple into the top rad hose to check. Never saw anything over 90deg which IMO is fine operating temp. Also, I once had the impeller disintegrate on my water pump, car had very similar symptoms to yours. Might be worth taking the water pump off and checking its condition? Quote Link to comment Share on other sites More sharing options...
springersrolla Posted June 22, 2012 Report Share Posted June 22, 2012 i'd be inclined to change the sender/ run an aftermarket electric temp gauge, its cheap insurance irrespective and it doesnt sound like it can be much else Quote Link to comment Share on other sites More sharing options...
shiryo Posted June 22, 2012 Author Report Share Posted June 22, 2012 I only fitted the new water pump about 2 months ago or so, perhaps i'll give it a look again as you suggested. Where's the bleed valve [if there is one] on the 3k? I'm an sr20 kid, these motors are very foreign to me haha. cheers Quote Link to comment Share on other sites More sharing options...
bAKER Posted June 22, 2012 Report Share Posted June 22, 2012 checklist: use water? no air in system? fan/airflow ok? no gunk in system? system holds 100 odd kpa? cap holds 100 odd kpa? thermostat opens? waterpump pumps? timing to around 15degrees? hg does leak? system pressurises too fast? bubbles in coolant? Quote Link to comment Share on other sites More sharing options...
shiryo Posted June 22, 2012 Author Report Share Posted June 22, 2012 After a quick tinker earlier: - not using water. - was still some air in system - fan and airflow is perfectly fine - system was flushed thoroughly, no gunk - yet to pressure test it - thermostat opens - waterpump is sweet - yet o check timing - headgasket not leaking - no milky oil - there was only some bubbles, very small. I gave it yet another good long bleed, so tomorrow i shall see how she gets on. Will also try and make a move on checking the timing. Quote Link to comment Share on other sites More sharing options...
boost Posted June 22, 2012 Report Share Posted June 22, 2012 so whats the typical water temp of these engines ? below 98degC ? Quote Link to comment Share on other sites More sharing options...
74coupe Posted June 24, 2012 Report Share Posted June 24, 2012 Mine in the ke25 3k was all over the place, I fitted after market gauges and she not seems to be running and working normally, sits between quarter and half 90% of the time but does rise slightly in traffic Quote Link to comment Share on other sites More sharing options...
BReNt Posted June 25, 2012 Report Share Posted June 25, 2012 (edited) checklist: use water? no air in system? fan/airflow ok? no gunk in system? system holds 100 odd kpa? cap holds 100 odd kpa? thermostat opens? waterpump pumps? timing to around 15degrees? hg does leak? system pressurises too fast? bubbles in coolant? 15 degrees is probably a bit too far advanced! I'd go for around 8-10 degrees dailying, 12 max. After a quick tinker earlier: - not using water. - was still some air in system - fan and airflow is perfectly fine - system was flushed thoroughly, no gunk - yet to pressure test it - thermostat opens - waterpump is sweet - yet o check timing - headgasket not leaking - no milky oil - there was only some bubbles, very small. I gave it yet another good long bleed, so tomorrow i shall see how she gets on. Will also try and make a move on checking the timing. Still some air in system? How do you know the head gasket is not leaking? It's pretty hard to have an air pocket in a k motor after changing the coolant, I'm not sure I could do it even if i tried. After everything you have described this is telling me that there are combustion gases getting into the cooling system from a dodgy head gasket. Edited June 25, 2012 by BReNt Quote Link to comment Share on other sites More sharing options...
shiryo Posted June 25, 2012 Author Report Share Posted June 25, 2012 I think that's the only logical solution that remains Brent. I recieved a new headgasket today, so i should get my arse into gear and replace that tonight. I put some chemiweld in the system on Saturday to tie me over until then, though it's still quite noticeable and i really don't want to keep driving it in this manner. Here's hoping tonights effort resolves all the drama. Quote Link to comment Share on other sites More sharing options...
shiryo Posted June 25, 2012 Author Report Share Posted June 25, 2012 Drove her home. Popped bonnet. Damn. Coolant had rushed back into the overflow bottle. Not good. Someone sell me a 4k asap! Quote Link to comment Share on other sites More sharing options...
silverra23 Posted June 27, 2012 Report Share Posted June 27, 2012 Did you do the headgasket? If you are doing the headgasket make sure you get the head checked for straightness/warpage. Quote Link to comment Share on other sites More sharing options...
shiryo Posted June 27, 2012 Author Report Share Posted June 27, 2012 Not yet, I've been too complacent and hostile. Will try get onto it this weekend. Recommend and particular places to take the head to? Or an approximate cost? Quote Link to comment Share on other sites More sharing options...
silverra23 Posted June 27, 2012 Report Share Posted June 27, 2012 Not sure which part of town you are in.. I used Dandenong Rebores for my Celica - http://www.dandyrebores.com.au/ Quote Link to comment Share on other sites More sharing options...
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