carson230 Posted August 6, 2015 Posted August 6, 2015 My engine has a slight tapping sound at about 1200-1300rpm roughly. Ive checked the valve clearances. Anybody came across this before. It is forged Quote
ROTABOOST Posted August 6, 2015 Posted August 6, 2015 Is it worse when cold? Quite possibly a bit of piston slap Quote
Johnboy GT Posted August 7, 2015 Posted August 7, 2015 Shaun is there a guide for cam tensioning as mine does it throughout the Rev range as well.John Quote
Johnboy GT Posted August 7, 2015 Posted August 7, 2015 http://www.ukstarletowners.com/topic/80525-retensioning-inlet-cam/Search function. 😊John Quote
J40k-mo Posted September 14, 2015 Posted September 14, 2015 Anyone find out problem with this? Mines just started rattling? So it can't be the inlet can can it? Are these engines bad for cams wearing or tappets etc? Quote
5e colin Posted September 14, 2015 Posted September 14, 2015 ^^^^ there is a spring inside the intake cog that can wear down so yes can happen and the chimps dont start tappin al of a sudden its a slow progres from silent to noisey Quote
Johnboy GT Posted September 16, 2015 Posted September 16, 2015 This is a spare cam I have. I'm assuming the two holes I have pictured is where the service bolt goes? That will bring the cog round another tooth. Put in in the head, set the timing then remove the service bolt? I'm just making perfectly sure before I do it so sorry if it sounds dim.John Quote
Johnboy GT Posted September 17, 2015 Posted September 17, 2015 Bump. I will be doing this tonight hopefully.John Quote
ROTABOOST Posted September 17, 2015 Posted September 17, 2015 Yes mate, puts a tooth worth of spring pre load on the cam gears. Bolt the cams in then just remove the bolt Quote
5e colin Posted September 17, 2015 Posted September 17, 2015 ya thats it stick bolt in it stik cam in the vice and 2 bolts in the cog so you can tention is or muscle power Quote
akyakapotter Posted September 17, 2015 Posted September 17, 2015 http://www.toyotagtturbo.com/forums/showthread.php?99425-4efte-engine-timing-and-tork Quote
Johnboy GT Posted September 17, 2015 Posted September 17, 2015 You are all gentleman! I will report back in due course if this sorts her out!CheersJohn Quote
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