Escort cosworth - water boiling
Hi,
problem with boiling water after 5-6 km of driving...temp gauge is about quater? No racing, just light driving about 70-90km/h, outside temperature 28°C. When I arrived to garage, heater tank was like "balloon" and water was boiling. (temp gauge still under the quater). When i turned off the ingnition, boiling raised! It boiled about 2 minutes. Then I started engine, remove cap from heater tank and water is slowly rising up to the top of heater (cca 30sec up top). I saw bubbles comming out from pipe...but same bubbles I can see if I turn of the ignition so I am guessing that water is boiling inside engine (this makes bubbles) - But there is a question why is water boling inside engine? Car stays for a few years, Last year a cleand water system with 10pcs of cleaners (flush) there was a lot of "mud" in system...Any idea before I demount the thermostat and water pump? Thanks! (sorry for my english) |
So the Thermostat was dead....
but I changed it...and there is still some presuure in heater tank ( and bubbles when engine is running (hot)). How can I check up 100% if the head gasket (or head) is OK? There is no OIL in water, no Water in oil...no white smoke... And when I turn off the engine (hot) ..water is bubble from engine to heater tank - is that normal? |
Mine was doing that, there was a loose coolant hose. It only boils when its not under preasure so theres preasure escaping somewhere
prohaps shine a torch and look for steam coming out somewhere. |
Originally Posted by adam151082
(Post 6286572)
Mine was doing that, there was a loose coolant hose. It only boils when its not under preasure so theres preasure escaping somewhere
prohaps shine a torch and look for steam coming out somewhere. |
Get one of the rad sealant chemicals as they work well on tiny leaks
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Maybe wrong cap?
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Originally Posted by midnight_man
(Post 6286783)
Maybe wrong cap?
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you must fit a bypass thermostat
which looks like this https://encrypted-tbn2.gstatic.com/i...9dBtdEY9NG3S0A |
Originally Posted by midnight_man
(Post 6286581)
If there will be loose hose.... = water leak...but there is no any water under the car :(
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I changed cap of heater tank...now system is not pressuring (cap is working ) old cap was dead..... But when engine gets hot, water will blow out of the heater tank http://www.escortrscosworth.com/foru...s/icon_sad.gif....so I gues that head gasket is gone.....
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