Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Bad lifter after oil change?

Thread Tools
 
Search this Thread
 
Old 04-22-2012, 04:39 PM
  #1  
Banned
Thread Starter
iTrader: (3)
 
adamantium's Avatar
 
Join Date: Sep 2011
Location: From the abyss
Posts: 942
Likes: 0
Received 3 Likes on 3 Posts
Default Bad lifter after oil change?

So i recently did a tune up (changed oil/plugs/wires) and for some reason the car now has a small tick in the top end i put my ear closer and to me it sounds as if its coming from the intake valvecover area. Not very firmiliar with these motors, thought it might of been an exhaust leak but no black soot is showing anywhere.


THE TICK GOES AWAY AND COMES BACK AND IT USUALLY ONLY SOUNDS FROM IDLE TO ABOUT 1500-1800 RPMS. Can someone please help me out here i can get a video if anyone is interested. ALSO RANDOMLY THE OIL PRESSURE TENDS TO DROP THE MORE I DRIVE, THE FIRST 10 MIN OF DRIVING THE OIL PRESSURE IS FINE (JUST ABOVE 40) THEN IT BEGINS TO SLOWLY FALL. FIRST 40 THEN RIGHT UNDER 40 THEN TO ABOUT 35ISH.

Do these symptoms sound familiar?
Old 04-22-2012, 04:49 PM
  #2  
TECH Addict
iTrader: (2)
 
Darkman's Avatar
 
Join Date: Apr 2009
Location: Spring, Texas
Posts: 2,167
Likes: 0
Received 5 Likes on 4 Posts
Default

All else equal, the oil pressure will be higher when the engine is colder and lower as it warms up; Once fully warmed up the oil pressure should increase by at least 10 psi with each 1,000 rpm. If you change oil viscosity the relationships are still applicable, but the absolute psi you see could be slightly different from that seen with the old oil.

There are several possible causes for the ticking sound.
Old 04-22-2012, 05:42 PM
  #3  
Banned
Thread Starter
iTrader: (3)
 
adamantium's Avatar
 
Join Date: Sep 2011
Location: From the abyss
Posts: 942
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by Darkman
All else equal, the oil pressure will be higher when the engine is colder and lower as it warms up; Once fully warmed up the oil pressure should increase by at least 10 psi with each 1,000 rpm. If you change oil viscosity the relationships are still applicable, but the absolute psi you see could be slightly different from that seen with the old oil.

There are several possible causes for the ticking sound.
Just did some WOT pulls and oil pressure at redline holds steady at just under 60psi went out and the ticking seems to have went away.

Old 04-22-2012, 05:43 PM
  #4  
10 Second Club
iTrader: (21)
 
Mean87SS's Avatar
 
Join Date: Sep 2005
Location: Edison, NJ
Posts: 1,407
Likes: 0
Received 2 Likes on 2 Posts

Default

Did you find any needle bearings in your oil drain pan?
Old 04-22-2012, 07:26 PM
  #5  
Banned
Thread Starter
iTrader: (3)
 
adamantium's Avatar
 
Join Date: Sep 2011
Location: From the abyss
Posts: 942
Likes: 0
Received 3 Likes on 3 Posts
Default

Originally Posted by Mean87SS
Did you find any needle bearings in your oil drain pan?
When i changed the old oil everything looked fine. It has fresh oil right now and its clean no signs of shavings in it.
Old 04-22-2012, 09:16 PM
  #6  
12 Second Club
iTrader: (49)
 
bww3588's Avatar
 
Join Date: Sep 2005
Location: Chillicothe/Lima, Ohio
Posts: 8,139
Received 8 Likes on 8 Posts

Default

If it comes back, it would be worth it To pull the valve covers and inspect the rocker arms.
Old 04-23-2012, 01:24 AM
  #7  
12 Second Club
iTrader: (6)
 
Schantin's Avatar
 
Join Date: Jun 2004
Location: Ft. Irwin, California (But Virginia is home)
Posts: 1,501
Likes: 0
Received 7 Likes on 1 Post

Default

Recheck the torque on your plugs (since you just replaced them) . A loose plug can cause a tick.
Old 04-23-2012, 12:16 PM
  #8  
TECH Addict
iTrader: (14)
 
sscamaroburn02's Avatar
 
Join Date: Sep 2005
Posts: 2,053
Received 7 Likes on 7 Posts

Default

odd that after oil change it started ticking. Again like above check your plugs once more time.




All times are GMT -5. The time now is 12:43 AM.