*greg* Posted May 6, 2010 Share Posted May 6, 2010 I have recently rebuilt my engine and used forged internals. After putting the engine back together and covering 800 miles it is still tappy. When its off boost and you tap the accelerator it makes a noise that sounds like a loose cam cap or similar . I have checked all the obvious things but nothing is loose and also tolerences! It is driving me crazy any ideas? Oh and it is still on a self learn map if this makes any differnece ? Quote Link to post Share on other sites
Asad Posted May 6, 2010 Share Posted May 6, 2010 Tried this?http://www.toyotagtturbo.com/forums/showthread.php?t=41558 Quote Link to post Share on other sites
*greg* Posted May 6, 2010 Author Share Posted May 6, 2010 have seen this before but cant really understand what he is on about?! Quote Link to post Share on other sites
Asad Posted May 6, 2010 Share Posted May 6, 2010 before you removed the cams did you put a bolt into the inlet cam? Quote Link to post Share on other sites
*greg* Posted May 12, 2010 Author Share Posted May 12, 2010 before you removed the cams did you put a bolt into the inlet cam?no, what would that do? Quote Link to post Share on other sites
Russleh Posted May 12, 2010 Share Posted May 12, 2010 I've done exactly the same mate. didnt change anythin to do with the head and its tappy. i think it may be to do with the cam gear. its under tension to help the 2 gears mesh together less noisily. when i took mine out tho i was watchin it and its not as if it spun around or anythin but ill have a look think f you take the rocker cover off and just have a look if the service bolt holes in the camgear are aligned you will know Quote Link to post Share on other sites
*greg* Posted May 12, 2010 Author Share Posted May 12, 2010 when i took cams out i didnt even think to look, so the gear is split in two and the service bolt aligns both sides up? I guess its spring loaded to keep a nice constant mesh with no noise? so fitting with no service bolt in could of made it align funny?? Ill have a look now and see what it looks like. cheers Quote Link to post Share on other sites
*greg* Posted May 12, 2010 Author Share Posted May 12, 2010 had a look and it looks lined up? Quote Link to post Share on other sites
*greg* Posted May 12, 2010 Author Share Posted May 12, 2010 http://www.toyotagtturbo.com/forums/showth...ht=service+bolt Quote Link to post Share on other sites
Crossfade Posted May 12, 2010 Share Posted May 12, 2010 I have recently rebuilt my engine and used forged internals. After putting the engine back together and covering 800 miles it is still tappy. When its off boost and you tap the accelerator it makes a noise that sounds like a loose cam cap or similar . I have checked all the obvious things but nothing is loose and also tolerences! It is driving me crazy any ideas? Oh and it is still on a self learn map if this makes any differnece ?Did you check that the anti lash on the inlet cam was tension'd correctly before you placed them in sync that could be your problem . And have the cam carrier caps been done up to the correct torque setting ? Quote Link to post Share on other sites
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