Subject	Here's how to test them.
Posted by	Bo (Houston) on October 30, 2011 at 6:43 PM
	This message has been viewed 1159 times.
In Reply To	How can I tell if it is only the VTC springs? posted by JOZ32 on October 30, 2011 at 04:59 PM
Message	Locate the VTC solenoids on the backside of the engine next to the firewall. Get a skinny extra wire and unplug the vtc solenoid and stick the extra wire in the connector to the green w/black stripe wire and plug it back in. Now ground the other end of the wire on a ground. Everything has to have a good connection and the solenoid has to be plugged in in order for this to work. The ecu activates the solenoids by ground you're just creating a ground yourself. Now with the car 100% cold, start it and see if the noise goes away. If not, test the other solenoid and it should go away. It may be one or both of your vtc gears, if the noise goes away you know you need a new vtc gear. you're gonna need a whole new or rebuilt gear because replacing the spring behind the cover is just a temporary fix. If you have blazt or some other computer software you can activate it with that. [ http://www.twinturbo.net/nissan/300zx/forums/technical/view/1118573/Get-a-skinny-extra-wire-and-unplug-the-vtc-solenoid-and.html ]
Follow Ups	rattle noise on start up,sound coming from the valves i - JOZ32 15:50:37 10/30/11 It sounds like it could be a VTC gear. Post a sound - Bo (Houston) 16:22:50 10/30/11 Re: It sounds like it could be a VTC gear. Post a sound - JOZ32 16:43:56 10/30/11 How can I tell if it is only the VTC springs? - JOZ32 16:59:37 10/30/11 Here's how to test them. - Bo (Houston) 18:43:29 10/30/11 Thanks man,Today I watched a youtube vid. of a timing belt - JOZ32 05:19:14 10/31/11 The lifters can rattle at startup. - coma_ass 13:58:03 11/01/11
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