hoff Posted November 29, 2007 Share Posted November 29, 2007 Further to my post in supra chat id thought id post something more specific here. Got home the other night, got out the car and all of a sudden I was covered in clouds of steam from the engine bay along with a massive hissing. We couldnt tell what it was in the dark but the iniotial thoughts were that it was the water pump, core plug or therastat. Last night we had it on the ramp. The engine bay was still very wet and we couldn't see where the leak was. We had the engine running for a bit and then turned it off but still no sign. The blowers were blowing the correct tempreature, maybe a little warm, the footwells were dry and the temp gauge also normal. The only thing was that there was no pressure in the hoses. Does anyone have any thoughts? Cheers:) Quote Link to comment Share on other sites More sharing options...
Ibrar Jabbar Posted November 29, 2007 Share Posted November 29, 2007 Have you checked the rad cap? Quote Link to comment Share on other sites More sharing options...
hoff Posted November 29, 2007 Author Share Posted November 29, 2007 It didnt appear to be damaged. My mechanic drove it to the workshop with it off to release some pressure. But it did look ok and should not have been loose. The steam seemed to be coming from down by the drivers side of the engine. Quote Link to comment Share on other sites More sharing options...
Ian C Posted November 29, 2007 Share Posted November 29, 2007 Where was the wetness in the bay? Could give a rough idea of where it's coming from, the steam could be blown around by the engine fan. -Ian Quote Link to comment Share on other sites More sharing options...
hoff Posted November 29, 2007 Author Share Posted November 29, 2007 Sorry Ian, I meant the water not the steam:) The steem was coming from every - f*cking-where:blink: Quote Link to comment Share on other sites More sharing options...
Guest Garfy Posted November 29, 2007 Share Posted November 29, 2007 it could be that the spring on the rad cap has gotten weak, therefore not allowing the water system to reach correct pressure, this will then allow it to boil over, just a possibility. Quote Link to comment Share on other sites More sharing options...
Burna Posted November 29, 2007 Share Posted November 29, 2007 I would replace the rad cap and also check to see if the plastic top on the rad isn't cracked with age. An old one has a dark green look to the plastic instead of black. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted November 29, 2007 Share Posted November 29, 2007 Mine overheated on the A13 in the summer, the Toyota gauge never moved until the last second then it shot of the scale, the Defi gave me the first clue when the Alarm went off, it made a lot of steam (this would be worse in the cold of winter), most of the steam was from the overflow expansion tank, and it was the thermostat in the end that had caused it Quote Link to comment Share on other sites More sharing options...
hoff Posted December 3, 2007 Author Share Posted December 3, 2007 Well they've spent all morning going over the car and cant find a thing wrong with it. No leaks or anything to cause the burst of steam and hissing. He's driving it back to his now so I will see him later to find out how it was driving. If its fine then maybe I may of been low on water (though im sure I wasn't) and if it does the same again I have no idea what the problem is. Quote Link to comment Share on other sites More sharing options...
gaz1 Posted December 3, 2007 Share Posted December 3, 2007 just a thought but i had something simalar a while back, aparently if the last time you filled it up caused an air lock it could have been that finaly getting out through the expansion tank and causing the problem, just be carefull as the stock gauge is shite, on a track day my hks gauge showed over 120, yet the stock had not moved:( Quote Link to comment Share on other sites More sharing options...
hoff Posted December 3, 2007 Author Share Posted December 3, 2007 Thanks for that gaz. The gauge is shite. Even when it went the gauge showed normal! Its just been driven at normal speeds and im told it seemed fine and wasn't losing water etc. I'll take it for a blast myself tonight to see how it is. Fingers crossed all should be well. Quote Link to comment Share on other sites More sharing options...
gaz1 Posted December 3, 2007 Share Posted December 3, 2007 i would deffo reccomend anyone to get a water gauge as a priority, mine has come close to the mark after a certain trader forgot to refill:( then next time forgot to tighten the clamps:rolleyes: if i had not had a gauge i reckon i would have lost her:( Quote Link to comment Share on other sites More sharing options...
hoff Posted December 4, 2007 Author Share Posted December 4, 2007 Right then, this is really starting to bug me. The supe was driven home yesterday and was told it seemed fine. So I drove it myself gently for about 5 miles and all was well. Then I took on a 10 - 15 mile blast reaching about 90 leptons. Appeared fine but when I got home and I got out there was a strong smell of anti freeze again and the engine was pretty hot. I popped the bonnet and as I lifted it there was more steam (though only a relitively small cloud which very quickly dispersed). The smell and steam again appeared to be coming from the drivers side, not far above the 1st cat. Im convinced its a problem with the water pump or a hose behined it. It will be pressure tested tonight and hopefully that will find the problem. On tick over and the engined off there is no leak so the build up of pressure with some spiritted driving is causing the problem. Quote Link to comment Share on other sites More sharing options...
hoff Posted December 4, 2007 Author Share Posted December 4, 2007 Found it. The thermostat is knackered. Quote Link to comment Share on other sites More sharing options...
juanchan Posted December 4, 2007 Share Posted December 4, 2007 Found it. The thermostat is knackered. If I'd seen the thread sooner I'd have said that too My Corsa had similar problems - steam everywhere every now and again. Thermostat was knackered but I had to take it back to the garage 3 times to convince them it was and get them to change it! Quote Link to comment Share on other sites More sharing options...
hoff Posted December 4, 2007 Author Share Posted December 4, 2007 Bloody hell Rich:D Couldnt have been the greatest garage in the world you sent your corsa to. Should of had it done cheep as you had to tell them what the problem was;) Quote Link to comment Share on other sites More sharing options...
hoff Posted December 11, 2007 Author Share Posted December 11, 2007 The leak is back. Clouds of steam last night that seemed to be coming from one of the heater pipes. We will look tonight to see which one and if it is definately coming from one of them. But when i filled it up with water today there was loads of dripping comi9ng from around/above the thermostat housing. Any further thoughts from anyone? Quote Link to comment Share on other sites More sharing options...
Havard Posted December 11, 2007 Share Posted December 11, 2007 The leak is back. Clouds of steam last night that seemed to be coming from one of the heater pipes. We will look tonight to see which one and if it is definately coming from one of them. But when i filled it up with water today there was loads of dripping comi9ng from around/above the thermostat housing. Any further thoughts from anyone? Could it not be something as simple as a split pipe somewhere?? I would imagine that under low pressure the leak will not be excessive but when hot it will piss out! H. Quote Link to comment Share on other sites More sharing options...
hoff Posted December 11, 2007 Author Share Posted December 11, 2007 We're hoping so. It did appear to come from the thermostat housing and when we had a look it was a buggered seal. Everything seamed ok for a couple of days but the leak appears to be above the housing sometimes and a differant place at others. So tonight there will be manifolds off, the lot, to work out exactly where it is coming from! The side off the block was wet and the water seamed to be from the head, but hopefully that is just from the water spraying. Quote Link to comment Share on other sites More sharing options...
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