Do all dual cams make some sort of valve noise? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

awgdawg · 10-23-2013, 02:18 PM

My kade has a valve tick. I can hear the marble in a tin can rattle from the chain guide but it is also making a valve tick. Theres no oil light on so i dont think its the oil pressure at least I hope not. I know theres tons of threads out there but idk if this is a common thing. I mean Ive heard a lot of other cars where they always tick some even sounded like mini diesels but ran great.

awgdawg · 10-23-2013, 02:24 PM

More info on the car, some of the vacuum lines are plugged off and the only mods are an aem cai, 3in exhaust thats unhooked atm, auto ecu. Seemed to run fine when I had it in the first car. Idk I cant afford to have to pull the engine again. No funds, tools or place to do it.

UnknownGuy · 10-23-2013, 03:26 PM

Well depending on how long ago the motor was swapped and if the motor was swapped properly, the Ecu is probably trying to adjust its self after being unplugged. A lot of times the Ecu will recalibrate itself by advancing or retarding the timing or adjusting the air fuel ratio. Best bet is to let it readjustment itself for about a week or two. If its already been that long and you still have it you may need to advance or retard the timing manually with the distributor. Good luck.

awgdawg · 10-23-2013, 05:09 PM

its been about a month however the ecu was reset several times up until about a week or two ago when I got a battery for it. If it would last until next fall that would be awesome. Im planing on going turbo next winter.

UnknownGuy · 10-23-2013, 08:59 PM

Yeah the Ecu should be fine then. Well the only thing I can think is to play with the timing and see if it sounds better.

codyace · 10-23-2013, 09:34 PM

have you removed the upper guide yet?

awgdawg · 10-24-2013, 08:22 AM

No not yet the weather has been shitty and I haven't had time between class. I was looking at it yesterday and it seems like it goes away around 2500-3000 rpm. So you guys think that using the auto ecu has caused my head to start ticking at low rpms?

10-23-2013, 02:18 PM	#1
awgdawg Join Date: Jun 2013 Location: Pa Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	Do all dual cams make some sort of valve noise? My kade has a valve tick. I can hear the marble in a tin can rattle from the chain guide but it is also making a valve tick. Theres no oil light on so i dont think its the oil pressure at least I hope not. I know theres tons of threads out there but idk if this is a common thing. I mean Ive heard a lot of other cars where they always tick some even sounded like mini diesels but ran great.

10-23-2013, 09:34 PM	#6
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 36 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	have you removed the upper guide yet? __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

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10-23-2013, 02:24 PM	#2
awgdawg Join Date: Jun 2013 Location: Pa Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	More info on the car, some of the vacuum lines are plugged off and the only mods are an aem cai, 3in exhaust thats unhooked atm, auto ecu. Seemed to run fine when I had it in the first car. Idk I cant afford to have to pull the engine again. No funds, tools or place to do it.

10-23-2013, 03:26 PM	#3
UnknownGuy Zilvia Member Join Date: Jun 2006 Location: Long Beach, CA Posts: 206 Trader Rating: (12) Feedback Score: 12 reviews	Well depending on how long ago the motor was swapped and if the motor was swapped properly, the Ecu is probably trying to adjust its self after being unplugged. A lot of times the Ecu will recalibrate itself by advancing or retarding the timing or adjusting the air fuel ratio. Best bet is to let it readjustment itself for about a week or two. If its already been that long and you still have it you may need to advance or retard the timing manually with the distributor. Good luck.

10-23-2013, 05:09 PM	#4
awgdawg Join Date: Jun 2013 Location: Pa Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	its been about a month however the ecu was reset several times up until about a week or two ago when I got a battery for it. If it would last until next fall that would be awesome. Im planing on going turbo next winter.

10-23-2013, 08:59 PM	#5
UnknownGuy Zilvia Member Join Date: Jun 2006 Location: Long Beach, CA Posts: 206 Trader Rating: (12) Feedback Score: 12 reviews	Yeah the Ecu should be fine then. Well the only thing I can think is to play with the timing and see if it sounds better.

10-24-2013, 08:22 AM	#7
awgdawg Join Date: Jun 2013 Location: Pa Posts: 41 Trader Rating: (0) Feedback Score: 0 reviews	No not yet the weather has been shitty and I haven't had time between class. I was looking at it yesterday and it seems like it goes away around 2500-3000 rpm. So you guys think that using the auto ecu has caused my head to start ticking at low rpms?