Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

How to tell if this noise is a cam bearing?

Thread Tools
 
Search this Thread
 
Old Sep 17, 2005 | 07:51 PM
  #1  
speedingpenguin's Avatar
Thread Starter
Senior Member
iTrader: (1)
 
Joined: Jun 2003
Posts: 955
Likes: 0
From: MA
Car: 1981 Chevy Malibu, 1987 Formula 350
Engine: 229 V6, L98 TPI 350
Transmission: TH350, 700R4
Axle/Gears: 10 bolt ???, 9 bolt 3.27 posi
How to tell if this noise is a cam bearing?

"tick tick tick tick tick", you get the point. lol
Anyway, my engine makes a ticking noise that goes along with the engine RPM's and only really appears after the engine has warmed up a few minutes and is most evident at around like 2000+ rpm's
Using a radiator hose as a sorta stethoscope (sp), everyone thats listend to it has agreed that it most likely isnt valvetrain related because it doesnt come from either side of the engine, but more towards the middle....
Cam bearing is all I can really think of, how do I tell for sure? If it is, what am I in for? Thanks,
-Chris
Reply
Old Sep 17, 2005 | 08:13 PM
  #2  
ede's Avatar
ede
TGO Supporter
 
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
since a cam spins i'll bet it's anything but a cam bearing
Reply
Old Sep 17, 2005 | 11:36 PM
  #3  
speedingpenguin's Avatar
Thread Starter
Senior Member
iTrader: (1)
 
Joined: Jun 2003
Posts: 955
Likes: 0
From: MA
Car: 1981 Chevy Malibu, 1987 Formula 350
Engine: 229 V6, L98 TPI 350
Transmission: TH350, 700R4
Axle/Gears: 10 bolt ???, 9 bolt 3.27 posi
what else could it be?
Reply
Old Sep 17, 2005 | 11:57 PM
  #4  
sellmanb's Avatar
Supreme Member
 
Joined: Jul 2004
Posts: 1,840
Likes: 1
From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
Is your car CC Carb?

It could just be a loose rocker arm, or a stud pulled out causing that loose rocker arm. Could also be a lifter, though I doubt it.


Could also be pinging. You are sure it's not an exhaust leak at the header gaskets?
Reply
Old Sep 18, 2005 | 01:00 AM
  #5  
84z28350's Avatar
Supreme Member
 
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
Depending on the loudness/tone of the "tick" it could also be a bit lower, maybe a con rod.
Reply
Old Sep 18, 2005 | 05:28 AM
  #6  
speedingpenguin's Avatar
Thread Starter
Senior Member
iTrader: (1)
 
Joined: Jun 2003
Posts: 955
Likes: 0
From: MA
Car: 1981 Chevy Malibu, 1987 Formula 350
Engine: 229 V6, L98 TPI 350
Transmission: TH350, 700R4
Axle/Gears: 10 bolt ???, 9 bolt 3.27 posi
its non CC

Reason we dont think its valvetrain related is because it doesnt seem to come from either side of the engine specificly, but more from the middle...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
anesthes
Tech / General Engine
40
Mar 10, 2016 10:35 PM
xxx3man`
Tech / General Engine
11
Sep 23, 2015 10:37 PM
gixxer92
Engine/Drivetrain/Suspension Parts for Sale
5
Sep 1, 2015 04:32 PM
anesthes
Tech / General Engine
4
Aug 26, 2015 01:37 PM




All times are GMT -5. The time now is 05:00 PM.