Notices
GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

What's this part? mecanic question !

Thread Tools
 
Search this Thread
 
Old Mar 17, 2010 | 11:56 AM
  #1  
maniaco02's Avatar
maniaco02
Thread Starter
Driver School Candidate
 
Joined: Mar 2010
Posts: 5
Likes: 0
From: Quebec
Default What's this part? mecanic question !

Hello everyone, yesterday we got our best weather temp in a while and I went out to clean my motor compartment. After I cleaned all I started the car and looked that since winter is over I'm getting an annoying noise comming from this part (red arrow in the pic). So if anyone can tell me if it would be easy to fix or expensive, any idea would be welcomed. Sound is like a fast tictictictictictic but it's not THAT loud. I think lot of old car makes this sound but in a louder version but if it can be fixed, would be nice.



Thanks for your suggestions !
Reply
Old Mar 17, 2010 | 11:58 AM
  #2  
Mr Jokster's Avatar
Mr Jokster
Lexus Test Driver
iTrader: (8)
 
Joined: Aug 2008
Posts: 6,466
Likes: 91
From: California
Default

Thats your intake manifold (plenum)
Reply
Old Mar 17, 2010 | 01:01 PM
  #3  
GS4_Fiend's Avatar
GS4_Fiend
Lexus Test Driver
15 Year Member
Liked
Loved
Community Favorite
iTrader: (22)
 
Joined: Aug 2008
Posts: 7,415
Likes: 237
Default

Could be time for valve adjustment ?
Reply
Old Mar 17, 2010 | 01:51 PM
  #4  
sakataj's Avatar
sakataj
Lexus Fanatic
iTrader: (182)
 
Joined: Jun 2008
Posts: 17,247
Likes: 77
From: tenn
Default

op, u r 22 and dont know what a intake manifold is?

as gs4 fiend said you might need a valve adjustment.
Reply
Old Mar 17, 2010 | 07:25 PM
  #5  
7DOOBIE7's Avatar
7DOOBIE7
Pole Position
 
Joined: Oct 2009
Posts: 302
Likes: 0
From: A.V.C.A.
Default

is it me or is it because he isn't running any belts? j/k Cover them pulleys up!
Reply
Old Mar 17, 2010 | 07:30 PM
  #6  
jspecdan's Avatar
jspecdan
Lexus Test Driver
 
Joined: Aug 2006
Posts: 1,177
Likes: 1
From: 248 formerly 203
Default

i've been noticing the ticking as well but only when the engine is cold. it goes away after i've been driving around for awhile.
Reply
Old Mar 17, 2010 | 08:28 PM
  #7  
GS4_Fiend's Avatar
GS4_Fiend
Lexus Test Driver
15 Year Member
Liked
Loved
Community Favorite
iTrader: (22)
 
Joined: Aug 2008
Posts: 7,415
Likes: 237
Default

That's piston slap which occurs in early morning startups. As it warms up the noise goes away. Completely normal.
Reply
Old Mar 17, 2010 | 08:32 PM
  #8  
maniaco02's Avatar
maniaco02
Thread Starter
Driver School Candidate
 
Joined: Mar 2010
Posts: 5
Likes: 0
From: Quebec
Default

Yah well I could be 22 or 40, I just never worked on the motor itself. I do most of everything else myself for what is brake, suspension, lights, body repair... anyway, I just never touched to the motor itself but I would of loved to know more about it. I would like to know if a valve adjust would be easy to do for someone who never did that or if I could break something while I undo the part, maybe springs of whatever would be hard to re-assemble. Like jspecdan said too, it occurs while the motor is cold.

So I would just like to know if it's ok to take the right part on the picture off, or if I might break something, or have bad time to re-assemble cause of oil, spring, airtighness or whatever, I don't know what's in the part. If it's ok to play with it I'll have fun to take it off and see what it's like. Thanks for helping,

(the picture was taken on internet, my car has the belts hehe)
Reply
Old Mar 17, 2010 | 10:33 PM
  #9  
Big Mack's Avatar
Big Mack
Lexus Champion
20 Year Member
iTrader: (1)
 
Joined: May 2004
Posts: 2,673
Likes: 0
From: Arizona
Cool

Originally Posted by sakataj
op, u r 22 and dont know what a intake manifold is?

as gs4 fiend said you might need a valve adjustment.
How did you know how old he is? Doesn't say it...

And I don't think it would hurt anything to take the plenum off, since the noise is not coming from that - it doesn't have moving parts. The pistons and valves are what could be making the noise, and those are under the heads. This is one of those things where you should simply leave it alone - it's normal.

Big Mack
Reply
Old Mar 17, 2010 | 11:19 PM
  #10  
FrankT's Avatar
FrankT
Instructor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2005
Posts: 1,001
Likes: 51
From: Mountainair, NM
Default

There are moving parts in the intake, ACIS system is in there.

Valve adjustments on this motor is very difficult with the head in place, each valve has different size shims. Most just have the machine shop do it.

Sounds like the OP wants to do some practice wrenching...be careful.
Reply
Old Mar 18, 2010 | 09:11 AM
  #11  
maniaco02's Avatar
maniaco02
Thread Starter
Driver School Candidate
 
Joined: Mar 2010
Posts: 5
Likes: 0
From: Quebec
Default

Alright thanks for helping, if the sound gets louder or whatever I'll take it off and see if I can replace these valve, just found a site selling these valve for like 20 bucks. For now I'll let it go then.

Thanks to everyone !!!
Reply
Old Mar 18, 2010 | 09:17 AM
  #12  
Frankdorn's Avatar
Frankdorn
Lexus Test Driver
iTrader: (7)
 
Joined: Oct 2005
Posts: 1,387
Likes: 6
From: WI
Default

Haha! Yeah, bud, you're not gonna wanna yank the intake to throw on a few new $20 valves.

Most experienced engine builders don't go into an engine's internals. Taking off the intake plenum is vastly different from removing the head to install new valves.

Bottom line, if the ticking gets really loud or just really drives you nuts, take the car to a machine shop for a quote. I would imagine several hundred to $1000 to have 'em adjusted. You shouldn't need new valves.
Reply
Old Mar 18, 2010 | 09:48 AM
  #13  
sakataj's Avatar
sakataj
Lexus Fanatic
iTrader: (182)
 
Joined: Jun 2008
Posts: 17,247
Likes: 77
From: tenn
Default

Originally Posted by Big Mack
How did you know how old he is? Doesn't say it...
Big Mack
i checked his profile........
Reply
Old Apr 20, 2010 | 10:30 PM
  #14  
kao's Avatar
kao
Driver School Candidate
 
Joined: Sep 2008
Posts: 39
Likes: 0
From: Kazakhstan
Default

There are problem with acis valve mount afaik. It could tear away from mounts and fall into engine block. So, it would be reasonable to check mount of acis valve.
Reply
Old Apr 21, 2010 | 12:26 AM
  #15  
Tuanville's Avatar
Tuanville
Intermediate
15 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Apr 2010
Posts: 341
Likes: 33
From: Ca
Default

Originally Posted by sakataj
op, u r 22 and dont know what a intake manifold is?

as gs4 fiend said you might need a valve adjustment.


That's funny! Because your trader score is ALSO 22!
woot woot!
Reply



All times are GMT -7. The time now is 07:40 AM.