scott87 Posted September 12, 2012 Share Posted September 12, 2012 (edited) I just bought my supra a few days ago and have a problem. Spent all day removing suspension components and cleaning/painting them, took the short drive home and was about to switch the ignition off when i heard this odd rattling noise. It has been making a noise but that was much more like a heatshield, this sounds like something in the engine..... Im really hoping its nothing serious but guessing it is. Car has been running fine since i got it last thursday and have had no real issues par a slightly tricky couple of starts which cleaning the plugs sorted... The video makes it sound louder than it is, but it is audible when you stand by the car....Today before noticing the noise it has been pulling fine, not using oil or coolant. Edited September 13, 2012 by scott87 (see edit history) Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted September 12, 2012 Share Posted September 12, 2012 Firstly it's an na so bomb proof, If its broke it's rare unless it's done millions of miles or been run low of fluids. Are you sure that's not the heat shield? Hard to tell on the vid obviously Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted September 12, 2012 Share Posted September 12, 2012 ..... Or a dry thrust bearing? The only noise on tick over I've ever had was simular to this was that Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Firstly it's an na so bomb proof, If its broke it's rare unless it's done millions of miles or been run low of fluids. Are you sure that's not the heat shield? Hard to tell on the vid obviously No i held something against the heatshield to stop it from rattling. It really does sound "in" the engine. I was thinking knock rod? The fluids were low when i got the car but topped them straight up. Coolant and oil were both just above min. Also has literally just done over 100,000 miles... Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted September 12, 2012 Share Posted September 12, 2012 Ok so listened 5 times now and it does sound like a thrust bearing, when you dip the clutch on tick over does it stop???? Quote Link to comment Share on other sites More sharing options...
DodgyRog Posted September 12, 2012 Share Posted September 12, 2012 It looks like one off the studs is missing at the rear of the heatshield I would suggest removing the heatshield and seeing if the noise disappears with it There are also heatshields on the cats Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Ok so listened 5 times now and it does sound like a thrust bearing, when you dip the clutch on tick over does it stop???? The heatshield has been held in place and does not rattle checked this. It does rattle when under load. The thrust bearing, a new clutch was fitted 30k ago.... It has been ticking slightly since owning it and when dipping the clutch that has been going away... Quote Link to comment Share on other sites More sharing options...
Dnk Posted September 12, 2012 Share Posted September 12, 2012 (edited) Big end begining to go perhaps is my guess If it is just drop another motor in it, thats the cheapest option with the NA If it is the big end it shouldn't last too long before it gets much louder Edited September 12, 2012 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
skippyboyo1 Posted September 12, 2012 Share Posted September 12, 2012 The heatshield has been held in place and does not rattle checked this. It does rattle when under load. The thrust bearing, a new clutch was fitted 30k ago.... It has been ticking slightly since owning it and when dipping the clutch that has been going away... I'm confused, so the ticking in the vid goes when you press the clutch? Yes? If so its what I've said Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 I'm confused, so the ticking in the vid goes when you press the clutch? Yes? If so its what I've said No sorry, there was a lighter ticking noise that i had noticed since owning the car that disappeared when pressing the clutch pedal, i thought this was just the flywheel tick. I have not tried depressing the clutch to see if this knock goes away. Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Right just been to check the car. The noise didnt go away when i pressed the clutch in. Only ran it for a few seconds. So i thought id check the fluids again. There is practically no oil in what so ever...! There was mid to full in yesterday. It hasn't been smoking or leaking from anywhere as ive been under it loads. Where has all the oil gone? Does this mean the noise is likely to be permanent damage now? I just cant work out where it has gone as i put in quite a bit the other day and checked it yesterday. Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Also as there is no oil under the car in any of the places ive been or under it now i assume that there would still be oil over the components that move? Im just clutching at straws here. But there must be something serious wrong with the engine if it has just magically lost loads of oil in the last day?! Quote Link to comment Share on other sites More sharing options...
letmeshowyou Posted September 12, 2012 Share Posted September 12, 2012 Really hard to tell from the vid, but that sounds top endy to me. Should be able to narrow it down with a long thin piece of wood held to your ear. I know this won't be a consolation but N/A engines are really very cheap to pick up nowadays, so although it will be a pita, this probably won't be that expesive to sort Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted September 12, 2012 Share Posted September 12, 2012 Also as there is no oil under the car in any of the places ive been or under it now i assume that there would still be oil over the components that move? Im just clutching at straws here. But there must be something serious wrong with the engine if it has just magically lost loads of oil in the last day?! if it runs low enough to drop oil pressure (below the level of the strainer) the bearings in everything will fail pretty quickly and will seize soon after that. Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Well its off now. So i was planning on buying 10 litres of oil tomorrow (cheap motaquip stuff) and putting as much in as it will take. Is there any chance that it will be ok? It definitely does sound top end, it isn't a deep enough sound to be bottom end i dont think. Well i put the dipstick back in a couple of times as i couldn't believe it was that low! But there is a tiny bit of oil registering on the dipstick so there should be enough to hold pressure! If the engine was very very low on oil i assume it would become noisy. Guess the main question is though where is the oil going??? Quote Link to comment Share on other sites More sharing options...
letmeshowyou Posted September 12, 2012 Share Posted September 12, 2012 if there are definitely no external leaks, it's either going in to the gearbox, in to the cooling system, or it's being burnt! Quote Link to comment Share on other sites More sharing options...
bigbloodyturbo Posted September 12, 2012 Share Posted September 12, 2012 my vote is its in your bellhousing. To lose that much in your exhaust would make it smoke like feck and if it's not on your drive then its the only place it can be if you've only just topped it up. Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Bell housing? Its not going to the cooling system as i topped this up too. This level has not moved at all, if anything dropped a very slight amount. What severity would you say that knocking is? Low enough that there may not be "real" damage and putting oil in could help? Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 Oh also there is no oil warning light. Not even when the engine was started a few hours ago. Which i assume means the sump had enough oil in it.... Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 12, 2012 Author Share Posted September 12, 2012 (edited) I just read something online that got me thinking about the oil. If the oil put into the car was not 10w40 what else would it be? Would me adding 10w40 (as this is recommended) cause this issue, would it result it a stickier substance and cause the cams to stick or rattle? Just a wild thought as the noise is from the upper of the engine not the lower... Also should rod knock not just occur on a higher rev range when hitting it and reducing back down on revs. When i rev the engine the knocking seems to go away then come back again. Edited September 12, 2012 by scott87 (see edit history) Quote Link to comment Share on other sites More sharing options...
marc_p Posted September 13, 2012 Share Posted September 13, 2012 Wow, that is a strange one, I can't listen to the noise at work as I have no sound, however, when you topped the oil up, was the car cold? As a hot and cold engine will give 2 completely different oil levels. Quote Link to comment Share on other sites More sharing options...
Lbm Posted September 13, 2012 Share Posted September 13, 2012 Watch out for posting in Tech with non descriptive titles, thanks. In the future, when people are looking for help using the search facility, your thread title won't help. You may also get an even better immediate response if you suggest the problem in the title Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 13, 2012 Author Share Posted September 13, 2012 (edited) Watch out for posting in Tech with non descriptive titles, thanks. In the future, when people are looking for help using the search facility, your thread title won't help. You may also get an even better immediate response if you suggest the problem in the title Thanks. How do i change the title. Right i now spent the day looking over the Supra for a solution. This morning i checked the oil and it was actual registering that it had about a quarter left in it. So i started her up for a few seconds and then back off again. Then checked the oil, it was now not registering again. So anyway i went and bought more oil and a filter. Chaneged the oil out and it was like tar! So put the new filter on and filled back up with just about 5.6 litres. Test drove for a while and the noise is still there. After listening really closely all over the engine i think it is coming from the front. It is also definitely not a deep or bottom end kind of noise. I think it is serious vibration from somewhere but am not certain. Ive held all of the heatshields in place but this did not stop it. There is almost a slight squeaking sound too, but it is not constant. My next question is could one of the pulleys be causing this? The aux belt does sit slightly off on one of the pulleys (the one the belt touches smooth side to be precise). Has anyone had this type of problem before? Lastly the car is still not using any water or burning oil. Pulls well in every gear and is driving normally. After todays driving and monitoring the oil i can safely say (touch wood) that the car is not loosing oil at all. Any suggestions now would be greatly appreciated. Edited September 13, 2012 by scott87 (see edit history) Quote Link to comment Share on other sites More sharing options...
scott87 Posted September 13, 2012 Author Share Posted September 13, 2012 Also here is a new video. I think this better depicts the sound. Quote Link to comment Share on other sites More sharing options...
Scooter Posted September 13, 2012 Share Posted September 13, 2012 Personally I would whip off the fan/aux belt and "briefly" restart it and see if the noise is still there. This will rule out/confirm a pulley noise. Does belt sit slightly off the pulley, towards the engine or towards the bumper? Quote Link to comment Share on other sites More sharing options...
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