GTR Fever Posted December 1, 2011 Share Posted December 1, 2011 hey guys..I'm new here and i joined to get your opinions on my latest project MK4 supra..just a brief intro, i bought the car as a NA/ auto and did a TT/ auto swap recently..had an overheating problem which was due to mishimoto fans and a stock NA radiator..to fix this i installed OEM MK4 supra clutch fan with shroud, mishimoto 3 core aluminium rad, mishimoto rad hoses and a mishimoto tranny oil cooler. after this, car worked fine..no overheating..but, and here comes the problem, one day while driving steam comes from under the hood and my temp gauge goes to red as soon as i pulled into my garage.. the next day when it was cool i checked the engine bay out and noticed that the coolant in the rad was low so i topped it up..while topping it up coolant was leaking out from the back of the head at the same rate..(that is, coolant leaking at the back of the head, between the engine and the firewall) there is no oil in the rad nor is there water in the engine oil..car starts fine but when it does it pumps out the coolant way faster..what can cause this?? help please btw, will start a thread on the car itself soon. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted December 1, 2011 Share Posted December 1, 2011 Theres a coolant hose that goes to the heater matrix at the back of the head, the do split quite often, Id say thats your problem. Quote Link to comment Share on other sites More sharing options...
Lude Posted December 1, 2011 Share Posted December 1, 2011 as above there is a water hose that runs along the back of the engine, look closer where the water is coming from... Quote Link to comment Share on other sites More sharing options...
Dnk Posted December 1, 2011 Share Posted December 1, 2011 There are 2 hoses one that feeds into the matrix and the one that feeds out of the matrix. Quote Link to comment Share on other sites More sharing options...
GTR Fever Posted December 1, 2011 Author Share Posted December 1, 2011 the water comes from the head itself...but i will check it again to be sure.. need my car on the road again..she's collecting dust Quote Link to comment Share on other sites More sharing options...
Scott Posted December 1, 2011 Share Posted December 1, 2011 Sounds like one of the plugs is shot. I think there's one at the back? Quote Link to comment Share on other sites More sharing options...
GTR Fever Posted December 1, 2011 Author Share Posted December 1, 2011 plugs?...water jacket?..are they the same thing? and how to check for sure without taking down the motor? Quote Link to comment Share on other sites More sharing options...
GTR Fever Posted December 4, 2011 Author Share Posted December 4, 2011 figured it out guys..its the heater hose at the back of the head..the hose is busted where the clamp is so it was not visible until i started scrapping it yesterday..car will be back on the road soon.. next step - determine what size single turbo i'll be swapping in Quote Link to comment Share on other sites More sharing options...
dude Posted December 4, 2011 Share Posted December 4, 2011 figured it out guys..its the heater hose at the back of the head..the hose is busted where the clamp is so it was not visible until i started scrapping it yesterday..car will be back on the road soon.. next step - determine what size single turbo i'll be swapping in Think american...............................................'Go big or stay at home '!!!!!! Quote Link to comment Share on other sites More sharing options...
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