Gokart Posted January 2, 2014 Share Posted January 2, 2014 Morning all, Could any of you guys help me with a tapping noise I have noticed. I cannot hear the tap whilst the engine is idling, only when revved, I know there is a tapping noise coming from one of the injectors which stops when the engine has some heat in it. But this tapping carrys on, it also sounds like it is getting worse. The engine doesn't appear to be using any oil or water etc and has just recently had the oil changed. I will try to attach a couple of video's to the post. http://vimeo.com/83212360 https://vimeo.com/83212359 ThanksJames Quote Link to post Share on other sites
Jamie1st Posted January 2, 2014 Share Posted January 2, 2014 First thing if be doing is removing the rocker cover and checking the valve clearances Quote Link to post Share on other sites
Gokart Posted January 2, 2014 Author Share Posted January 2, 2014 Slider guage under the lobe of the camshaft? It has been a little tappy for a while, but with it being stood for a few years I've never checked that over. Also maybe worth noting is that the car has got a bit of white smoke coming from the exhaust both on idle and revs, wether this maybe condensation in the exhause or possible head gasket failure and that could be causing a tapping noise, like what was decribed in a topic I've read on here Quote Link to post Share on other sites
Jamie1st Posted January 2, 2014 Share Posted January 2, 2014 Slider guage under the lobe of the camshaft? It has been a little tappy for a while, but with it being stood for a few years I've never checked that over. Also maybe worth noting is that the car has got a bit of white smoke coming from the exhaust both on idle and revs, wether this maybe condensation in the exhause or possible head gasket failure and that could be causing a tapping noise, like what was decribed in a topic I've read on hereI'd have guessed it would be condensation from the exhaust, but you wouldn't know till everything got right up to temp. Yeah check the clearances with a feeler gauge. Can't remember off hand what they are, but they are different for exhaust and inlet Quote Link to post Share on other sites
Gokart Posted January 2, 2014 Author Share Posted January 2, 2014 I'd have guessed it would be condensation from the exhaust, but you wouldn't know till everything got right up to temp.Yeah check the clearances with a feeler gauge.Can't remember off hand what they are, but they are different for exhaust and inlet The smoke doesn't go even when up to temperature, but I just wonder if this is due to it not being driven in anger for nearly 5 years Quote Link to post Share on other sites
Jamie5414 Posted January 2, 2014 Share Posted January 2, 2014 (edited) Has it been sitting for a long period of time? A simple engine flush, new oil, filter + redex might help if it has. Plenty of times I've seen this happen if a car has been standing for a couple of years. Edited January 2, 2014 by Jamie5414 Quote Link to post Share on other sites
Gokart Posted January 2, 2014 Author Share Posted January 2, 2014 It hasn't seen the road for 6 years and has been started possibly twice a year in that time. I always made sure to unplug the HT leads and build up the oil pressure before starting it properly. It has fresh oil in at the moment as I serviced it before I started it up last to move it from my old lockup to the new one. (trailered it) Quote Link to post Share on other sites
H_D Posted January 2, 2014 Share Posted January 2, 2014 Do not flush your engine, Your oil pickup will get blocked and your engine will die from oil starvation. Quote Link to post Share on other sites
ryan lang Posted January 2, 2014 Share Posted January 2, 2014 i checked mine wednesday, inlet side is 0.15 - 0.25mm and exhaust is 0.31 - 0.41mm quick explanatio of how to check them http://homepage.ntlworld.com/richard.cargill/Weblink/15L_4_CY.pdf Quote Link to post Share on other sites
Jamie5414 Posted January 2, 2014 Share Posted January 2, 2014 Do not flush your engine, Your oil pickup will get blocked and your engine will die from oil starvation. That's true, but your talking serious sludge there to cause blockages, If it gets a oil change regularly with decent oil there will be no sludge therefore no blockage. Quote Link to post Share on other sites
H_D Posted January 2, 2014 Share Posted January 2, 2014 (edited) That's true, but your talking serious sludge there to cause blockages, If it gets a oil change regularly with decent oil there will be no sludge therefore no blockage. each to their own - been on the starlet seen long enough to have seen many engine failures because of flushing - I strongly recommend you do not flush it and im sure many will agree. the oil pickup in the sump is a gauze type pickup and can block up very very easily. Edited January 2, 2014 by H_D Quote Link to post Share on other sites
Gokart Posted January 2, 2014 Author Share Posted January 2, 2014 Thanks for all your input guys, I will give the tappets a check over and hopefully that will be the answer Quote Link to post Share on other sites
ryan lang Posted January 2, 2014 Share Posted January 2, 2014 each to their own - been on the starlet seen long enough to have seen many engine failures because of flushing - I strongly recommend you do not flush it and im sure many will agree. the oil pickup in the sump is a gauze type pickup and can block up very very easily. just take the sump off, clear it out and everyones a winner Quote Link to post Share on other sites
Gokart Posted January 3, 2014 Author Share Posted January 3, 2014 Ok, so a little update. I have checked all the tappets gap and they are all within tolerance. I also had a check to see if there were any cracks in the manifold but I couldn't see any. Would you guys agree that this may be a possible headgasket failure or something more serious? Maybe little ends are rattling? Quote Link to post Share on other sites
Gokart Posted January 4, 2014 Author Share Posted January 4, 2014 So with a bit of investingation. It would appear that it isn't the top end rattling. BUT it is an injector! So now I am on the lookout for some injectors to fit Quote Link to post Share on other sites
ryan lang Posted January 4, 2014 Share Posted January 4, 2014 The injectors will always tick. It's the solenoids working that make the noise Quote Link to post Share on other sites
Gokart Posted January 4, 2014 Author Share Posted January 4, 2014 ive had a stephascope on each injector. number four is making a horrible noise Quote Link to post Share on other sites
ryan lang Posted January 4, 2014 Share Posted January 4, 2014 Ahh could be a dodgy one then Quote Link to post Share on other sites
Gokart Posted January 4, 2014 Author Share Posted January 4, 2014 (edited) I'm hoping so! Thanks for everyone's advice though. You've all been very helpful Edited January 4, 2014 by Gokart Quote Link to post Share on other sites
Jamie1st Posted January 4, 2014 Share Posted January 4, 2014 If you struggle to get some injectors give me a shout Quote Link to post Share on other sites
zurgieSR Posted January 29, 2014 Share Posted January 29, 2014 been looking into this tapping noise and just been told today by the old toyota master tech in work that toyota had a tsb (technical service bulletin) in regards to tappet type sound from top of engine, its the injector pulsation noise. There is a pulsation damper you can apparently buy from toyota that goes on the end of the fuel rail and replaces the banjo bolt that connects the fuel rail and feed pipe. Will look into this more over the next few days and see about purchasing one at some stage to see if it makes much difference. Quote Link to post Share on other sites
H_D Posted January 30, 2014 Share Posted January 30, 2014 been looking into this tapping noise and just been told today by the old toyota master tech in work that toyota had a tsb (technical service bulletin) in regards to tappet type sound from top of engine, its the injector pulsation noise. There is a pulsation damper you can apparently buy from toyota that goes on the end of the fuel rail and replaces the banjo bolt that connects the fuel rail and feed pipe. Will look into this more over the next few days and see about purchasing one at some stage to see if it makes much difference. Wow i never new this. Good bit of info keep us posted on this. Quote Link to post Share on other sites
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