jjgage Posted May 25, 2003 Share Posted May 25, 2003 Just trying to find out what the problems could be with my engine! I was driving it last night quite hard and something went, think its near the inlet manifold side of the engine, there was oil on the bonnet underside and around the head and inlet manifold, and there was blue ish coloured smoke coming from the exhaust and from the engine, just managed to crawl back to my flat so i don't think it'll be moving for a while Any ideas: turbo oil seals? Piston rings? head gasket? Also the car does not idle properly at all now, knackered cylinder? Help! I did notice that the boost was showing 1.5 after it happened when i recalled it, usually goes upto 1.4. I should have got this checked out but haven't been able to get to a RR in scotland yet. BTW, the reading is on a Greddy boost gauge, but the scale does NOT show bar, it shows kg/cm2 ??? Is this the same as bar pressure though? cheers for any help Martin, you read this yet??!!! Jonny Quote Link to comment Share on other sites More sharing options...
Adam W Posted May 25, 2003 Share Posted May 25, 2003 Exactly what mods (if any) do you have? 1.4-1.5 bar on stock turbos or fuel system is asking for trouble. I don't think a blown turbo should affect the idle, if it really sounds like a bag of spanners I'd say you've melted a piston, if you're extremely lucky just a plug. Is there smoke in the engine bay or just from the exhaust? Quote Link to comment Share on other sites More sharing options...
jjgage Posted May 25, 2003 Author Share Posted May 25, 2003 Hi Adam, The smoke is coming from the engine bay too, couldn't really see where, i started it this morning but it was still the same, not any smoke but i'm assuming thats because the engine is cold? Its the idle which is the strange part, what other symptons would a melted piston be? Whe i was driving the car home last night it stuttered all the time all had massive massive lag and felt like there was hardly any power.....also last night when i took the dipstick and oil filler cap off there was lots of smoke/steam rising from them both. Jonny Quote Link to comment Share on other sites More sharing options...
jjgage Posted May 25, 2003 Author Share Posted May 25, 2003 Originally posted by Adam W Exactly what mods (if any) do you have? 1.4-1.5 bar on stock turbos or fuel system is asking for trouble. I don't think a blown turbo should affect the idle, if it really sounds like a bag of spanners I'd say you've melted a piston, if you're extremely lucky just a plug. Is there smoke in the engine bay or just from the exhaust? Sorry totally forgot to mention mods but this is a grey area as i haven't done any engine mods myself and have'nt been able to get anyone to look at it to find out, think 1 cat has beeen removed, fuel-cut, but not sure what else..sorry J Quote Link to comment Share on other sites More sharing options...
Branners Posted May 25, 2003 Share Posted May 25, 2003 High boost does seem to go hand in hand with a blown crank oil seal. Boost shouldnt affect it but certainly the cars I have seen with a the crank oil seal failure have been running high boost prior to it happening. The oil from the crank oil seal gets everywhere and can go on to the exhaust and cause smoke that way. It also drips on to the undertray and sits there so you can dump 5l of oil and not really notice it. JB Quote Link to comment Share on other sites More sharing options...
Adam W Posted May 25, 2003 Share Posted May 25, 2003 And JB excells himself by replying to the wrong post . . . Right, it does not sound good. I'm no expert but it sounds like you've managed to blow the almost indestructible MkIV head gasket, and/or hole a piston. You must stop driving it immediately as your oil will be contaminated by water, therefore bearing failure is a certainty if you contnue to run the engine. Not sure where you're based but you need to get it to leon in Watford or Chris in Shropshire (the two best known and best respected Supra mechanics in the UK) for diagnosis and a hefty cash injection. Quote Link to comment Share on other sites More sharing options...
GavinL Posted May 25, 2003 Share Posted May 25, 2003 Leon is near Milton Keynes Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted May 25, 2003 Share Posted May 25, 2003 Being a bit of an expert in causing serious damage to engines...... When my HG went there were two symptoms 1) After a 100 mile commute once the car had cooled down the expansion tank was empty and there was no visible water in the rad. 2) After a few minutes of hard driving the temperature would start to rise. I had several tests done and despite the above symptoms there was nothing wrong!!! It eventually got blown to bits then was obvious My car was hesitating (felt like it was being held back) at 18-19PSI. After a BIG run the idle became very very lumpy; I tried a second run and had very little power and aborted. I nurse-maieded it home and found a melted spark plug. Replaced teh plugs and it was much better, still a little lumpy but OK. I was taking it easy with the plan to get it properly checked over whe it went. There was no smoke, I could still get boost but it felt like it was running on 1 or 2 cylinders - it could bairly drive. 2 pistons, 2 exhaust valves, buggered bores and damaged turbos...... You are running at the outer limits of stock J spec fueling, turbos and intercooler. Adam, like your last phrase "and a hefty cash injection", how true Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 25, 2003 Share Posted May 25, 2003 There seems to be a lot of doom mongerers latching on to this thread I'm wondering if it is as bad as everybody seems to think, but a description of 'something went' is not too helpful. What has caught my eye is your description of oil over the inlet manifold and surrounding area. I'm wondering if your PCV valve was ducked and by pushing the car that little bit harder the PCV valve has blow out of the cam cover or maybe the pipe off the end of the PCV valve. I will try to find a pic of the PCV valve to help, but is there any chance you can take some pics of the oily area's. Quote Link to comment Share on other sites More sharing options...
Branners Posted May 25, 2003 Share Posted May 25, 2003 Originally posted by Adam W And JB excells himself by replying to the wrong post . . . Right, it does not sound good. I'm no expert but it sounds like you've managed to blow the almost indestructible MkIV head gasket, and/or hole a piston. You must stop driving it immediately as your oil will be contaminated by water, therefore bearing failure is a certainty if you contnue to run the engine. Not sure where you're based but you need to get it to leon in Watford or Chris in Shropshire (the two best known and best respected Supra mechanics in the UK) for diagnosis and a hefty cash injection. So..this smoke thats coming from the engine bay...related to a blown piston is it? To get that amount of oil in the engine bay means you either holed the block, blown a seal or blown off a pipe. JB Quote Link to comment Share on other sites More sharing options...
jjgage Posted May 25, 2003 Author Share Posted May 25, 2003 Originally posted by Martin F There seems to be a lot of doom mongerers latching on to this thread I'm wondering if it is as bad as everybody seems to think, but a description of 'something went' is not too helpful. What has caught my eye is your description of oil over the inlet manifold and surrounding area. I'm wondering if your PCV valve was ducked and by pushing the car that little bit harder the PCV valve has blow out of the cam cover or maybe the pipe off the end of the PCV valve. I will try to find a pic of the PCV valve to help, but is there any chance you can take some pics of the oily area's. Yep sure i'll try and get some pics taken tomorrow and get them on here, cleaned most of the oil up that was on the head but still quite a bit down the side of the engine. Was working today so haven't had a chance yet to check out for leaking pipes etc Will keep you updated anyway. One of my mates was gonna come round to check the compression in the cylinders so will see what the results of that is. Cheers guys J Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 25, 2003 Share Posted May 25, 2003 Take out all the plugs and inspect. Check all 6 compressiuons to tell if you've lost a piston or valve seats. If OK seek further advice, else see the bank manager:eek: Also check that the inlet pipes are all connected OK - between the intercooler and the throttle body. (maybe do this first) Quote Link to comment Share on other sites More sharing options...
jjgage Posted May 26, 2003 Author Share Posted May 26, 2003 John, not to sound too daft but where is the standard intercooler? I don't have an aftermarket one - is it the small unit that sits in front of the radiator or is this the oil cooler? Will get lots of pics of my engine posted today hopefully so you can see the damage.. Ta Quote Link to comment Share on other sites More sharing options...
Adam Kindness Posted May 26, 2003 Share Posted May 26, 2003 jonny.. The IC is at the front, drivers side... infront of the wheel arch... remove the arch liner and you'll get into it... First thing id do would be check the plugs... then compression.... then strip off the turbos to check.... When i did mine, plug No5 had melted.... I had two damged pistons, scored valves and one turbo without blades... Not good, nor cheap If its blown turbos and piston etc damage id recommend Leon (JPS)... that where i sent my car to (used McKays transport company, 240 or so to get it to MiltonKeynes) What happened when mine went - Was driving down the M90... quiet slowly, lost all power and started smoking... thought it was just a hose off as there was just a small chirp kinda noise... pulled over...nothing evidant.. Got the car home..... no turbo power and lots of smoke... car idled fine... got a 2nd hand set of j-spec turbo's fitted, car came back idleing like a bag of shit and with new turbos blown.... ACE sent it to Leon! Quote Link to comment Share on other sites More sharing options...
Digsy Posted May 26, 2003 Share Posted May 26, 2003 I'd side with Martin at this point. All the symptoms sound like a part of the breather system has come off. Quote Link to comment Share on other sites More sharing options...
Adam W Posted May 26, 2003 Share Posted May 26, 2003 How would that affect the idle and driveability etc? I would have thought it would ujst lead to a messy engine bay . . . Quote Link to comment Share on other sites More sharing options...
Adam Kindness Posted May 26, 2003 Share Posted May 26, 2003 unmeterd air getting in? Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted May 26, 2003 Share Posted May 26, 2003 Originally posted by Adam Kindness When i did mine, plug No5 had melted.... Adam, that was the same plug as went on mine, perhaps no 5 is a weak spot when tuning or it could be pure coincidence? Quote Link to comment Share on other sites More sharing options...
Adam Kindness Posted May 26, 2003 Share Posted May 26, 2003 I'll check jonnys out tonight.... i hope it isnt What went on FisherJohns? Quote Link to comment Share on other sites More sharing options...
Guest Martin F Posted May 26, 2003 Share Posted May 26, 2003 Originally posted by Adam W How would that affect the idle and driveability etc? I would have thought it would ujst lead to a messy engine bay . . . It would be just like any inlet hose coming off and loosing air. Quote Link to comment Share on other sites More sharing options...
Adam Kindness Posted May 26, 2003 Share Posted May 26, 2003 update: Not good Popped over to jonnys this Eve... plugs on cly 1 and 6 are melted The big oil spill seems to be coming from around the front of the block, right hand side (looking towards car) Could'nt see any missing hoses etc round there was hard to get a pic down there too Quote Link to comment Share on other sites More sharing options...
Supra_Al Posted May 26, 2003 Share Posted May 26, 2003 .........oops, not looking good i'm afraid! Good luck! Al. Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted May 26, 2003 Share Posted May 26, 2003 Those plugs are much worse than mine was and my engine and turbos were fooked :-(( http://www.mkivsupra.net/vbb/showthread.php?s=&threadid=7026 Unless it holed the block I'd guess the oil leak may have been a coincidence?? Not sure of the details of Johns, but as far as I can remember pistons and turbos were pretty much blown to bits. Quote Link to comment Share on other sites More sharing options...
Steve Cargill Posted May 26, 2003 Share Posted May 26, 2003 Adam, what plugs are they, and are they all the same? Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 26, 2003 Share Posted May 26, 2003 Engine out:eek: Quote Link to comment Share on other sites More sharing options...
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