Guest sindrejl Posted May 7, 2007 Share Posted May 7, 2007 Sometimes, and only sometimes when I start up the Supra a hard knocking noise comes from the engine. I cant even hear where it comes from mainly because it wont happen again if I stop the engine and kranks it up again.. It also seems like the sound happens more frequently if I've driven the car a little harder. Anyone in here knows what it can be? The sound is only there when Im cranking, when the engine is started up its totally fine. The knock sound seems to been there for good 4 months I think. Quote Link to comment Share on other sites More sharing options...
AndyT Posted May 7, 2007 Share Posted May 7, 2007 Hi. Well if the sound's happened for 4 months it has probably ruled out much of the major expensive stuff. Look towards the starter motor mounts perhaps. Maybe a auxiliary pulley. I'm sure more expert members will be along and narrow this down for you though. Good luck. Quote Link to comment Share on other sites More sharing options...
Guest sindrejl Posted May 7, 2007 Share Posted May 7, 2007 Well Ill bump this post then to let the experts try to narrow it down Started the car totally 7 times today and no sound.. weird.. Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted May 8, 2007 Share Posted May 8, 2007 Hydraulic tappet worn ?? Quote Link to comment Share on other sites More sharing options...
Guest sindrejl Posted May 8, 2007 Share Posted May 8, 2007 Hydraulic tappet worn ?? hmm sorry if im asking stupidly, but what hydraulic tappet? or where? Quote Link to comment Share on other sites More sharing options...
AndyT Posted May 8, 2007 Share Posted May 8, 2007 hmm sorry if im asking stupidly, but what hydraulic tappet? or where? Under the cams mate. Activate valves in the motor. Quote Link to comment Share on other sites More sharing options...
Lucifer Posted May 8, 2007 Share Posted May 8, 2007 IN a MKiv Supra? LOVL Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted May 8, 2007 Share Posted May 8, 2007 I thought supras had hydraulic lifters ? Quote Link to comment Share on other sites More sharing options...
Jake Posted May 8, 2007 Share Posted May 8, 2007 I thought supras had hydraulic lifters ?Nah, bucket and shim Quote Link to comment Share on other sites More sharing options...
Guest sindrejl Posted May 8, 2007 Share Posted May 8, 2007 heh, anyway they wouldnt make noise only under cranking Anyone with nother suggestions? Quote Link to comment Share on other sites More sharing options...
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