Valve Head Noise LOUD TAPPING

turbonicsperformance · 05-15-2010, 05:02 AM

its not just valve tap or lifters and your timing won't cause a noise just a rough idle or sluggish condition it really sounds like you broke a valve spring but only one since it is a very slow tick sound were you revving it when this noise first developed and does it become less apparent or more when you rev? also i dont think your ignition timing would cause this without ALOT of other signals (hard slow start, overheating, cracking pistons, and alot faster noise) but imho it is a broken valve spring you should pull the valve covers and check them its not that hard of a job just remove intake where it splits and take off the valve covers the wires can stay in and everything

basic rule is a noise at half engine speed is valve noise or cam noise
full engine speed is ignition sound "arcing" or rod/main detonation etc.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
valve noise	nailhead432	MKIII Supra	2	04-07-2010 03:48 PM
Loud Clicking Noise!!	Cyto	MKIII Supra	2	10-11-2009 03:34 AM
Loud beeping noise	tannerjames	MKIII Supra	0	09-07-2007 07:34 PM
Valve Job On Head Now Car Wont Start?	MKIII shujin	MKIII Supra	4	08-07-2006 02:16 AM
tapping noise behind dash ?	supra887mgte	MKIII Supra	2	10-21-2005 02:34 AM

05-15-2010, 05:02 AM	#8
turbonicsperformance 3" Exhaust Join Date: Apr 2010 Location: sarasota fl Posts: 194	its not just valve tap or lifters and your timing won't cause a noise just a rough idle or sluggish condition it really sounds like you broke a valve spring but only one since it is a very slow tick sound were you revving it when this noise first developed and does it become less apparent or more when you rev? also i dont think your ignition timing would cause this without ALOT of other signals (hard slow start, overheating, cracking pistons, and alot faster noise) but imho it is a broken valve spring you should pull the valve covers and check them its not that hard of a job just remove intake where it splits and take off the valve covers the wires can stay in and everything basic rule is a noise at half engine speed is valve noise or cam noise full engine speed is ignition sound "arcing" or rod/main detonation etc.