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#1 2005-06-20 22:09:40

iota
si vis pacem, para bellum
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From: Columbus, OH
Registered: 2005-05-09
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Ticking sound from engine

Does anyone else's engine make a ticking sound that is dependant on throttle? Can only notice it when windows are down.

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#2 2005-06-20 23:16:18

ODG
Massive Member
Registered: 2005-05-24
User Number: 90
Posts: 212

Re: Ticking sound from engine

I was thinking about this while I was driving home from work today.  It's really apparent when you are accelerating next to a jersey wall or something that can reflect the sound back at you.  To my ear is sounds more like the pitter-patter of an exhaust leak than valves but I definitely hear a tah-tah-tah-tah when accelerating.  Valves usually make most of their sound at idle or under load if your engine is mistuned.

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#3 2005-06-20 23:26:02

SilverSubaab
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Registered: 2005-06-01
User Number: 128
Posts: 245

Re: Ticking sound from engine

Subaru boxer engine at work.smile


07 Subaru WRX TR
WRB

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#4 2005-06-21 08:36:58

iota
si vis pacem, para bellum
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Posts: 10306
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Re: Ticking sound from engine

yeah it sounds exactly like an exhaust leak to me but i assumed it was just due to the fact that the engine is so strange. its unusual coming from a 'luxury' car to having an engine that bucks and shakes the car at idle and makes all kinds of loud weird noises smile

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#5 2005-06-21 13:12:45

MaxPower
The wrong way, but faster.
From: NJ
Registered: 2005-06-01
User Number: 132
Posts: 116

Re: Ticking sound from engine

So what are the advantages to the boxer layout? I remember reading that it gives the car a lower center of gravity than a traditional V or inline engine. But there's got to be more to it than that. If the downside is weird noises/shaking at idle, where's the upside?


2005 Saab 9-2x Aero 5spd - Deep Blue Mica - Premium/Cold
Armrest extension/MOMO knob/rear cupholder/trunk tray/Saab door sills

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#6 2005-06-21 13:42:28

dakota1361
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Registered: 2005-05-13
User Number: 32
Posts: 150

Re: Ticking sound from engine

So what are the advantages to the boxer layout? I remember reading that it gives the car a lower center of gravity than a traditional V or inline engine. But there's got to be more to it than that. If the downside is weird noises/shaking at idle, where's the upside?

It's also supposed to be a smoother engine (less vibration) due to the fact that the cylinders are horizontally opposed.  I have noticed that it is very smooth.  Sometimes I will be sitting in a parking lot after i started my car and I can't even feel if the engine is on.


Blue 92x 5spd aero w/ sport and cold

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#7 2005-06-21 15:01:46

iota
si vis pacem, para bellum
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Re: Ticking sound from engine

oh yeah it's definately smooth, but when it shakes it shudders the entire car as if it was about to stall. maybe it's just me?

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#8 2005-06-21 15:19:49

MaxPower
The wrong way, but faster.
From: NJ
Registered: 2005-06-01
User Number: 132
Posts: 116

Re: Ticking sound from engine

iota wrote:

oh yeah it's definately smooth, but when it shakes it shudders the entire car as if it was about to stall. maybe it's just me?

No, I get that too. Same thing in my wife's Forester XT (which uses the 2.5L engine). Seems like Subaru engineers ought to be able to dial that out, but I guess not.


2005 Saab 9-2x Aero 5spd - Deep Blue Mica - Premium/Cold
Armrest extension/MOMO knob/rear cupholder/trunk tray/Saab door sills

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#9 2005-06-21 16:24:20

iota
si vis pacem, para bellum
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Re: Ticking sound from engine

do you get the ticking with the windows down?

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#10 2005-06-21 19:56:06

jon_s
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From: Florida
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Posts: 1890

Re: Ticking sound from engine

I definitely hear what you mean, and I think much of the issue is that the tops of the engine point out to the sides rather than up, so enginey noises reflect off of things rather than just going up into nowhere.  I think its just easier to hear what it's up to.  I mean, inline engines are kinda noisy when standing above them, but you don't get much sound radiating to the cabin, or to highway barriers and such where it can reflect back to you.  Plus, the frequency of the noises is lower since you are only hearing 2 cylinders worth at a time. 

Regarding the vibrations and such, compared to my '88 Mazda, this is a smoooooth machine at idle smile

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#11 2005-06-22 00:43:01

woozy_one
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From: SE Indiana
Registered: 2005-06-04
User Number: 157
Posts: 307

Re: Ticking sound from engine

I believe the solid lifters are the cause of the ticking.

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#12 2005-06-22 00:45:52

Anand
The Dude Abides
Registered: 2005-05-29
User Number: 113
Posts: 2036

Re: Ticking sound from engine

I really dig the sound of the boxer.  It sounds much meaner than it's 2.0L would suggest.  When I got to work today I backed into my parking spot and had a wall behind me.  I could hear the exhaust noise reflecting off the wall back at me.  Sounded nice big_smile


2005 Arctic Silver 9-2x Aero 5-Speed w/ Sport Package

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#13 2005-06-22 07:38:04

SilverSubaab
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Registered: 2005-06-01
User Number: 128
Posts: 245

Re: Ticking sound from engine

woozy_one wrote:

I believe the solid lifters are the cause of the ticking.

Bingo. smile


07 Subaru WRX TR
WRB

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#14 2005-06-29 11:08:01

ODG
Massive Member
Registered: 2005-05-24
User Number: 90
Posts: 212

Re: Ticking sound from engine

All that pitter patter and ticking makes the car sound pretty wimpy to me.  Sounds like I'm driving the old Tercel I used to have in high school.   I don't quite get it but I test drove a bone stock used WRX before I bought this car and the engine had a nice growl to it.  Maybe it's the increased sound deadening but I can't hear that same growl in my 92X.   With the windows up I can hardly hear the engine at all and with the windows down all I hear is a wimpy sounding pitter patter.  Makes me want to get rid of the intake silencer.

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#15 2005-07-01 11:13:19

frank
Member
Registered: 2005-06-23
User Number: 337
Posts: 5

Re: Ticking sound from engine

you answered your own question. This is supposed to be the refined older brother of the WRX. no engine or exhaust noise in this car (in stock form). You can remove the intake snorkel, the under hood insulation. you'll hear the engine right away again.

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#16 2006-06-04 09:53:00

jighazelton
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Registered: 2006-06-03
User Number: 1151
Posts: 6

Re: Ticking sound from engine

THat ticking (at idle) is your fuel injectors. Weekness of a boxer- hard to put a top engine cover (acoustic) over the engine, and cover those pesky injectors. Try foam.

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#17 2006-06-04 19:59:00

Titan
Member
Registered: 2006-02-05
User Number: 1006
Posts: 102

Re: Ticking sound from engine

It's not a weakness that the boxer engines shake when starting/stopping, or something that could be or should be "engineered out"...it's a characteristic of the mass of the pistons/rods/crank as weight is tossed out and back from the centerline...once the rpms are sufficient, that rocking is gone.  Same for the original VW engines, and the boxer porsche, and the BMW motorcycle boxers.  Want smoother starting/stopping in a 4 cylinder?  You'll need counterbalancers (which increase complexity and can decrease responisiveness/efficiency.  A really smooth 4 cylinder is the Mazda 2.3.  Audi 1.8 was smooth, too...I imagine their 2.0 is as good.   banana

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#18 2006-06-04 20:50:23

iota
si vis pacem, para bellum
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From: Columbus, OH
Registered: 2005-05-09
User Number: 1
Posts: 10306
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Re: Ticking sound from engine

Titan wrote:

A really smooth 4 cylinder is the Mazda 2.3

up up up My girlfriends Mazda3 2.3 sounds better and meaner than my 9-2x!

Titan wrote:

Audi 1.8 was smooth, too

down down down  it's smooth for the first year until things start falling apart and rattling smile

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#19 2006-06-04 21:33:34

Tkon
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From: Vaughan, ON
Registered: 2005-08-02
User Number: 647
Posts: 514

Re: Ticking sound from engine

iota wrote:

yeah it sounds exactly like an exhaust leak to me but i assumed it was just due to the fact that the engine is so strange. its unusual coming from a 'luxury' car to having an engine that bucks and shakes the car at idle and makes all kinds of loud weird noises smile

I had the local Subaru dealer Service Manager take my car for a test drive, because I didn't know if I had an exhaust leak or if the noises were normal. Turns out these loud weird noises are normal.


2005 SAAB 9-2x Aero, Arctic Silver Metallic, 5 MT - sold March 2017 - replaced with 2017 Subaru Impreza Wagon

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#20 2006-06-05 08:47:43

Titan
Member
Registered: 2006-02-05
User Number: 1006
Posts: 102

Re: Ticking sound from engine

the 1.8 I had was like a sewing machine.  However, it would cut out and stop running with no warning.  After 5 attempts to fix it, they "lemon-lawed" it for me, and I went to the 2.8 Brick engine....much better performer, but not as smooth.   banghead

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#21 2006-06-25 10:41:23

jighazelton
Member
Registered: 2006-06-03
User Number: 1151
Posts: 6

Re: Ticking sound from engine

Titan,

It is the lack of attention to detail, by Subaru, that causes the boxer to click and tick as this thread is speaking of. As I wrote, foam over the cam covers (or rocker covers) is what is needed.

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#22 2006-06-25 15:52:42

Titan
Member
Registered: 2006-02-05
User Number: 1006
Posts: 102

Re: Ticking sound from engine

I'd rather hear the tick than to have it muffled.  BMW seems to have started the trend of trying to make the engine seem less mechanical by covering the entire engine so you can't see any "parts" under the hood.  I like the noises, hoses, wires, belts, etc., right out in the open.  But, I'm a motorcyclist too, and go for the basic bikes...not the fairings and such.  Just different strokes for different folks.

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#23 2006-06-26 08:59:30

bentmettle
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From: Ann Arbor
Registered: 2005-11-16
User Number: 897
Posts: 2404
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Re: Ticking sound from engine

My first "car" was a 1977 VW Van.

I know this tick well.  I didn't realize Subaru also used the solid lifters, though.

Given that I could hear it in my van, well behind me, I'm unsure that foam insulation would actually attenuate the noise to the point it'd make a significant difference.

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#24 2006-06-26 09:16:52

ixiz
will drive U crazy...
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From: Atlanta, GA
Registered: 2005-11-05
User Number: 886
Posts: 5683
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Re: Ticking sound from engine

Its possible that the WG arm is ticking / rattling


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