jackso11 Posted July 24, 2010 Share Posted July 24, 2010 Lucky I didn't sell my engine yesterday, my overheating problem is still here I have changed the thermostat, rad cap and full coolant change to toyota red4life. Just went out for a drive to pick up some post from the depot, 25 mins there and all was fine, half way back and its over heating again. Looked under the bonnet and it looks like coolant has sprayed out from somewhere but I can't see where, engine running, revving, still can't see any coming out. here is a pic.... any ideas? Quote Link to comment Share on other sites More sharing options...
TLicense Posted July 24, 2010 Share Posted July 24, 2010 Slight split in the rad with the water being blown by the fan? If you whip it to any competent garage they'll be able to do a coolant system pressure test. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 it does look like the spray has been blown by the fan. it had a new rad about 3.5 years ago though. Will have to get it tested Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 anyone know a decent place I could take it to have a pressure test in the E3 area? Quote Link to comment Share on other sites More sharing options...
TT Paul Posted July 24, 2010 Share Posted July 24, 2010 have you checked top rad pipe make sure jubilee clips are tight as mine leaked out abit from there Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 yeah, I changed the clips and the pipe last weekend when I flushed the rad. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 what other things could this be by the way? am I right in thinking its either the radiator that needs replacing or the head gasket? It is leaking somewhere, I just checked and managed to fit another litre of coolant in and it was full to the top last weekend Quote Link to comment Share on other sites More sharing options...
keron Posted July 24, 2010 Share Posted July 24, 2010 have a look at these pipes circled on the left.(left circle) on the right circle...look at the sensor in the elbow or the top rad pipe elbow has a rubber o ring seal where it slots into, if that has a split, it can leak...(dont think its this but worth looking down there to see if its wet around the pipe?) Quote Link to comment Share on other sites More sharing options...
Nic Posted July 24, 2010 Share Posted July 24, 2010 Blocked or leaking radiator would be my guess. Quote Link to comment Share on other sites More sharing options...
richarde7927 Posted July 24, 2010 Share Posted July 24, 2010 I had a leak on my rad and i had the same as you it overheated on me , so i had a good look around and there was a split in the rad just under the filler cap , i have changed the rad and i have had no problem since . Rich. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 Well I am sitting in garage in woodford waiting for pressure test results. How long should this take? I seem to have been waiting ages! Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 They said there is too much pressure and the head gasket must be gone But do I trust a garage that just went straight up to a red hot car and opened the radiator cap, coating the entire engine with red hot coolant?! Also they dismissed the coolant spray that o photoed before Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 24, 2010 Share Posted July 24, 2010 what other things could this be by the way? am I right in thinking its either the radiator that needs replacing or the head gasket? It is leaking somewhere, I just checked and managed to fit another litre of coolant in and it was full to the top last weekend I told you what else it could be ages ago, and the photo makes me think I was dead right. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 I know you did chris, but I was hoping the rap cap would sort it. So from the pic do you this it is the headgasket? I would check the old post but I am in ikea, the place with the worst phone reception in the world and it's taken me 10 mins just to get this page to load!! Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted July 24, 2010 Share Posted July 24, 2010 Water pump? Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 Ahh, I remember now. How do find out if this is actually the water pump or the head gasket chris? Quote Link to comment Share on other sites More sharing options...
Shane Posted July 24, 2010 Share Posted July 24, 2010 They said there is too much pressure and the head gasket must be gone But do I trust a garage that just went straight up to a red hot car and opened the radiator cap, coating the entire engine with red hot coolant?! Also they dismissed the coolant spray that o photoed before Did they do a sniff test also? That would be normal if they suspected a BHG. Have to say I am not a huge fan of the water pumps on Supras. If it was my car, I would fill it up and as soon as it started to get hot (not cooking) I would take a good look under the bonnet to see if I could see where it was coming from. Couple of years ago the stat went on my car and the pressure was forcing water past the seal in the front of the pump. I know you have changed this, but the same effect could happen if you were overheating and over pressurising for any reason I guess and could explain whats shown in your photo. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 I don't know what test they did, they said I wasn't allowed in the workshop for insurance purposes. I hate not being able to see what they are doing. I also hate going to a new garage without knowing how good they are. How do you do a sniff test? Quote Link to comment Share on other sites More sharing options...
Gambit Posted July 24, 2010 Share Posted July 24, 2010 It's a device they put in the oil system that senses it. Nothing to do with your nose. Quote Link to comment Share on other sites More sharing options...
jackso11 Posted July 24, 2010 Author Share Posted July 24, 2010 Haha. Well the words of the garage where that there was loads of pressure and it's more than likely the headgasket for £1500.....sounds like they were talking rubbish. Quote Link to comment Share on other sites More sharing options...
SupraDan24 Posted July 24, 2010 Share Posted July 24, 2010 Haha. Well the words of the garage where that there was loads of pressure and it's more than likely the headgasket for £1500.....sounds like they were talking rubbish. I'd say bite the bullet mate and take it down to one of the Authorised Traders on here, least then you can have piece of mind that you won't be ripped off and they'l figure out what the problem is. Thats just what i'd do anyway. Road Trip ! Quote Link to comment Share on other sites More sharing options...
Shane Posted July 24, 2010 Share Posted July 24, 2010 I don't know what test they did, they said I wasn't allowed in the workshop for insurance purposes. I hate not being able to see what they are doing. I also hate going to a new garage without knowing how good they are. How do you do a sniff test? Its a simple test where they would sample the air/gas coming from the coolant cap and it would show if there were exhaust gasses present, the normal signs of a cracked head or BHG. I did see one once where a sample of the coolant was taken from the system using a large pippet (looked like a turkey baster to me)and a additive added to that sample and the results where dependent on what colour the sample changed to, but basicaly the same thing. http://www.mkivsupra.net/vbb/showthread.php?t=192956 Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 24, 2010 Share Posted July 24, 2010 It's almost certainly the water pump. I have a very low hours used one here if you need it. Quote Link to comment Share on other sites More sharing options...
caseys Posted July 24, 2010 Share Posted July 24, 2010 Haha. Well the words of the garage where that there was loads of pressure and it's more than likely the headgasket for £1500.....sounds like they were talking rubbish. Hang on you live in London and you didn't take it either to Whifbitz or AFR or SRD? All authorised and highly held in regard experts on the car? Also generally the advice of a certain Mr Wilson talking here normally is very good to heed! Either way chap, hope you sort out your issues. I can recommend AFR if it is HG, they changed mine the other year when I had valve stem seals done. Quote Link to comment Share on other sites More sharing options...
Shane Posted July 24, 2010 Share Posted July 24, 2010 (edited) Also generally the advice of a certain Mr Wilson talking here normally is very good to heed! Yes he no speak with fork tongue, he speak good talk:d Reckon if you run some checks you will see it *.*ing out the front of the pump housing Edited July 24, 2010 by Shane (see edit history) Quote Link to comment Share on other sites More sharing options...
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