veilsideTT Posted July 29, 2004 Share Posted July 29, 2004 Couple of weeks ago I changed my front crank seal. I took the rad out to do this and replaced all the coolant I took out, back in when I finished the job I kept checking my coolant level for the next couple of days and it was fine. BUT, I checked it after a short drive the other day and the level had dropped to nothing and both Water pipes that go to the rad had literally sucked themselves together as if there was a major vacuum in the system! I freed up the vacuum in the system, topped up the coolant level and went on my way (Worrying about a blown head gasket!) I arrived home and as I got out I noticed a huge cloud of white smoke bellowing out the back end. Then it cleared and there was nothing. I checked my top rad hose and it felt like there was no pressure in the hose at all, when usually the top hose is rock solid! I’ve been away on holiday for a week and today ive started her up again to see what gives. No problems on start-up. Coolant level fine, but still no pressure in the top hose when she’s fully warmed up. So I decided to go for a little drive. Got to the top of the street, stopped to get out of my road and had the same clouds of white smoke again. Drove back down the road and there was nothing again? I’ve done a block test with the kit that goes on the radiator and the blue die. No exhaust gasses present in the Water system. But could that be because it’s an intermittently problem. I i flick the thorottle quickly i can see a little puff of smoke comming from the exhaust. Not enough to see the colour of it thought. What’s up with my car? I’m so fed up rebuilding this bloody thing now! Any ideas people would be much appriciated! Scott Quote Link to comment Share on other sites More sharing options...
Ian C Posted July 29, 2004 Share Posted July 29, 2004 It could be the water jacket on your turbo's leaking. This would maybe only manifest when driving and have some boost pressure, hence nothing visible when idling, no obvious leaks, and no result on the sniffer test. If all the coolant was vented in this way, when the air cooled it would cause a drop in internal pressure, hence the rad hoses collapsing. That also says to me that the coolant system is airtight when the engine isn't running, so it's not an actual obvious leak... -Ian Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 So whats my next move? I dont dare drive the car incase the water system isnt circulating properly and i damage even more! I was going to do a compression test tonight? scott Quote Link to comment Share on other sites More sharing options...
Gordon F Posted July 29, 2004 Share Posted July 29, 2004 Could maybe be an internal leak in your intercooler. What sort of condition is it in? Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 Its a brand new 3row so i wouldnt thought there would be any problems there. Just done a comp test. All 6 pots read about 150 or just above. Im really stuck now. think im just going to have to pull her apart! Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 29, 2004 Share Posted July 29, 2004 White smoke is either antifreezeor brake fluid entering the combustion chamber, if it's notusing brake fluid, but IS suffering coolant problems suspect head gasket or cracked head. Running high boost? :-( Crank front seal blown out? Suspect piston trouble (Detonation damage). Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 well after my comp test earlier tonight i have been out for a good 30-40 mile trip with lots of stops and starts. Had no smoking problems whatsoever, I dont get it I await for it to happen again! No doubt it will! CHRIS: Im not running massive amounts of boost, 1.1bar is my max reading? this isnt too high for a UK spec car is it? I really cant imagine i have any piston damage as ive only covered 3000 miles on my new short block running a max of 1.1bar boost???? Havent used any brake fluid either Scott Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 29, 2004 Share Posted July 29, 2004 New short block + popped out front seal = bad news... Popped front seals = crankcase compression in the cases i have seen. I hope it's something trivial though, but not sure what carrot to offer. Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 well the seal hadnt exactly popped out. It was still in place when i got down to it. Which is why i was confused to where the oil was comming from. But i changed the crank seal anyway just to see and that stoped the oil leak! :confused: Quote Link to comment Share on other sites More sharing options...
Ian C Posted July 29, 2004 Share Posted July 29, 2004 Momentary hijack but how does brake fluid get in the combustion chamber?!!? The compression test sounds promising. I think you are going to have to keep trying until it happens again and get more of an idea under what conditions it goes wrong... -Ian Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 Yeh, How does brake fluid enter the combustion chamber? Or where you just pointing out that when it burns with fuel it burns white Yes IAN, Im just going to run her about now and see what happens. Dont think i dare do any full boost runs though really! Quote Link to comment Share on other sites More sharing options...
Miguel Posted July 29, 2004 Share Posted July 29, 2004 Originally posted by Chris Wilson White smoke is either antifreezeor brake fluid entering the combustion chamber, if it's notusing brake fluid, but IS suffering coolant problems suspect head gasket or cracked head. Running high boost? :-( Crank front seal blown out? Suspect piston trouble (Detonation damage). Yup you lost me too after antifreeze brake fluid? Quote Link to comment Share on other sites More sharing options...
Gordon F Posted July 29, 2004 Share Posted July 29, 2004 Originally posted by Ian C Momentary hijack but how does brake fluid get in the combustion chamber?!!? Leaking master cylinder. It can get in through the brake servo Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 Ahhhh, i See! You learn somthing new every day! Quote Link to comment Share on other sites More sharing options...
Miguel Posted July 29, 2004 Share Posted July 29, 2004 Originally posted by veilsideTT Ahhhh, i See! You learn somthing new every day! How are you brakes? Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted July 29, 2004 Author Share Posted July 29, 2004 not noticed any difference but i will have i check on the level again tommorow! Quote Link to comment Share on other sites More sharing options...
Gordon F Posted July 29, 2004 Share Posted July 29, 2004 Originally posted by veilsideTT Im just going to run her about now and see what happens. Dont think i dare do any full boost runs though really! Maybe the thing to do is to have a leak down test on the engine, and a pressure test on the cooling system. Hopefully. this would show up any fault. Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted August 1, 2004 Author Share Posted August 1, 2004 Update: I came to the conclusion that there was way too much pressure in the the water system when the car was running. And when i stopped the car all the rubber hoses vacuumed togther and pushed the coolant into the overflow tank. Checked the Rad cap and the seal was knackered on it. Seems that the Rad cap was not letting any pressure out of the system. New Cap from toyota yesterday and all is well. Now my only worry is the Three times i got White smoke out of the exhaust. :( Have i damaged anything? Ive not had any smoke since thursday now? Or did the excess water pressure push the water somwhere that it shouldnt of got to (IE, passed a seal or somthing in the turbos etc?) Another thing i was wondering, does water pressure have any effect on Crankcase pressure? if so, could this be the cause of my Front Crank seal going? Scott Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted August 2, 2004 Author Share Posted August 2, 2004 went out sunday! Smoked three times during the day. Just on idle for about 5-10 seconds? :( Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted August 4, 2004 Author Share Posted August 4, 2004 Anyone? Is this a turbo gone? Headgasket? Surely if it was head gasket it would smoke all the time and not just now and again on idle? Am i right? Quote Link to comment Share on other sites More sharing options...
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