Wonga Spar Posted October 26, 2018 Share Posted October 26, 2018 (edited) Sorry if this is the wrong place, it doesn't seem technical enough to go in that section. Was running late and ragged the car a bit on the way to work, arrived to find smoke coming from the exhaust manifold area (could have been lower but hard to tell) but no one spot in particular. There's oil spillage on the undertray which I hadn't noticed until today, should I be worried/investigate further? Cheers Edited October 26, 2018 by Wonga Spar (see edit history) Quote Link to comment Share on other sites More sharing options...
Sheefa Posted October 26, 2018 Share Posted October 26, 2018 Sorry if this is the wrong place, it doesn't seem technical enough to go in that section. Was running late and ragged the car a bit on the way to work, arrived to find smoke coming from the exhaust manifold area (could have been lower but hard to tell) but no one spot in particular. There's oil spillage on the undertray which I hadn't noticed until today, should I be worried/investigate further? CheersThe smoke could just be the oil burning on the exhaust. You'll need to remove the undertray and investigate further. Could be a o-ring leak or something simple. Quote Link to comment Share on other sites More sharing options...
Scooter Posted October 26, 2018 Share Posted October 26, 2018 Are you still NA or did you go NA-T in the end? Defo oily? not watery? Did the smoke smell bad, burning oil is pretty strong/grim. Check oil level now it's cool, and open the rad cap to check that's brimmed still. Quote Link to comment Share on other sites More sharing options...
Wonga Spar Posted October 26, 2018 Author Share Posted October 26, 2018 (edited) Are you still NA or did you go NA-T in the end? Defo oily? not watery? Did the smoke smell bad, burning oil is pretty strong/grim. Check oil level now it's cool, and open the rad cap to check that's brimmed still. Still no NA-T, every couple of months I'll swoop around all the insurers but haven't managed to find somebody willing to insure a converted Supra for under £1,400... very, very annoying. Nipped down and checked in my lunch break, the fluids look like coolant, very orange/brown and murky, too... as you mentioned the rad cap is no longer filled to brim so clearly something is unhappy. There's some water pooled on the tray too. Suppose I should have a coolant flush this weekend, reckon it's okay to top up with water and drive home? Edited October 26, 2018 by Wonga Spar (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted October 26, 2018 Share Posted October 26, 2018 When its cold top the rad up and the overflow tank, i'd fix the leak first before flushing the system Quote Link to comment Share on other sites More sharing options...
Mike2JZ Posted October 26, 2018 Share Posted October 26, 2018 On the NA, there is a water hose from the rear of the engine that connects to the throttle body. Sometimes this hose gets loose and leaks coolant which goes directly onto the exhaust heat shield and starts smoking. Quote Link to comment Share on other sites More sharing options...
sidewaysdan Posted October 26, 2018 Share Posted October 26, 2018 On the NA, there is a water hose from the rear of the engine that connects to the throttle body. Sometimes this hose gets loose and leaks coolant which goes directly onto the exhaust heat shield and starts smoking. Yep try this I had the exact same thing. It was this Quote Link to comment Share on other sites More sharing options...
Wonga Spar Posted October 26, 2018 Author Share Posted October 26, 2018 Interesting, really appreciated. I'm going to go full-stupid question, but assuming this is a loose hose, is just a case of putting the hose back in, and should I be able to do that in a car park without any tools? Just took it for another quick drive with refilled coolant/water, same issue, there's fluid draped all over the exhaust side of the engine. Could it be a water pump fault or can I rule that out? Quote Link to comment Share on other sites More sharing options...
sidewaysdan Posted October 26, 2018 Share Posted October 26, 2018 On mine was just the jubilee clip was loose Quote Link to comment Share on other sites More sharing options...
Dnk Posted October 26, 2018 Share Posted October 26, 2018 (edited) You can't rule anything out until you have a proper look and identify where the leak is from, its unlikely to be from two places, it could be a hole or a split that might req a new part If you find its from an original hose i'd be inclined to replace it as they are very old now, i had them failing years ago so worth updating for peace of mind, and replace the hose clips as well Edited October 26, 2018 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Scooter Posted October 26, 2018 Share Posted October 26, 2018 How far is work from home, should be ok if it's not that far/traffic is not too bad, just top right up and note how much you put in as it gives you a good idea how much leaked compared to the total coolant volume capacity. The more you have to put in to topup the rad the more careful you'll need to be! When home let it cool fully and then I would top up the coolant again and then run it and watch for leaks. You have the coolant pipes/hoses, water pump area and core plugs as suspects on that side of the block. Try and look at a coolant path schematic so you can check all joins etc. Quote Link to comment Share on other sites More sharing options...
Scooter Posted October 26, 2018 Share Posted October 26, 2018 SEE POST 11 on the attached - click on the 'here' link to get the coolant flow schematic. http://www.mkivsupra.net/vbb/showthread.php?111270-Heater-Matrix-bypass&highlight=coolant+path Quote Link to comment Share on other sites More sharing options...
Wonga Spar Posted October 26, 2018 Author Share Posted October 26, 2018 Cheers for your help fellas, did learn a lot from going through the bay with that schematic though, ended up being a core plug breaking seal, new water-pump on Monday! Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted October 26, 2018 Share Posted October 26, 2018 Great work, well done Quote Link to comment Share on other sites More sharing options...
AC93 Posted October 26, 2018 Share Posted October 26, 2018 Glad to hear, thanks for updating Quote Link to comment Share on other sites More sharing options...
stevie_b Posted October 27, 2018 Share Posted October 27, 2018 Glad to hear, thanks for updating Yes, good to see folk come back with what caused the problem. Good work! Quote Link to comment Share on other sites More sharing options...
Dnk Posted October 27, 2018 Share Posted October 27, 2018 Good news, i'd look at the hoses in the coolant system at the same time Quote Link to comment Share on other sites More sharing options...
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