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Old 02-23-2001, 09:42 AM   #1
Scooby Newbie
Member#: 2748
Join Date: Oct 2000
Location: Atlanta, Ga
1992 WHT SE-Rw/stuff
2.5RS & '01 Mazda MP3

Question valve noise

How loud is your engine, not exhaust, at idle? do your hear the valve train distictly?

mine i can hear the clicking of the valves and whatnot easily, my nissan was really quiet a idle, even my old XT was also.

just trying to gauage if i am haeing engine probs.
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Old 02-23-2001, 09:43 AM   #2
Scooby Newbie
Member#: 4077
Join Date: Feb 2001
Location: Eastern US
1999 Impreza 2.5RS
Aspen White


Subaru's motors are well known for their valvetrain noise. Mine is quite loud at idle. What you are hearing is the noise of valve lash. It's nothing to worry about.
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Old 02-23-2001, 06:24 PM   #3
Scooby Specialist
Member#: 3198
Join Date: Dec 2000
Location: Portland, OR USA
2005 GT LTD Wagon
Garnet Red


The subie 4cyl uses solid mechanical lifters, not hydraulic like most cars. That's the ticking you hear. It's normal, and will be louder when the engine is cold.
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Old 02-23-2001, 06:33 PM   #4
Scooby Specialist
Member#: 2188
Join Date: Aug 2000
Location: Remington VA`
2004 Impreza STI
82 BRAT with 12 in. lift


You may also be hearing the injectors fire off. They make a nice snapping sound.
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Old 02-23-2001, 07:13 PM   #5
Scooby Guru
Member#: 114
Join Date: Jul 1999
Chapter/Region: MWSOC
Location: Wichita, KS and Whoring, OT
'03 Evo, Rice White
'01 Erion CBR 929


SOHC Subarus do not have lifters at all. http://www.i-club.com/ubb-files/Foru...ML/000608.html

EJ25 DOHC heads are solid lifter except for 1996.
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