debris when changing engine oil?

**Flattracksteve** · 08-10-2008, 01:02 PM

Have a stock 98 TA ls1 w/ 75k miles
Pulled drain plug and found some needle bearings on the magnet.
9 were stuck to the magnet, not sure if more drained out.
Bearing dimensions 6.2 mm (0.254") long 1.65mm (0.65") diameter/very small
No unusual engine noise before oil drain.
Drive car very easy.
Any help w/ this?

Thanks in advance

SteveC

**JoshieDoom** · 08-11-2008, 04:26 AM

Question is what uses needle bearings. I wouldnt drive it till I found out and replaced it. Epic Failure could happen.

**mghawk57** · 08-11-2008, 04:34 AM

Rockers.

**Mr. Luos** · 08-11-2008, 06:44 AM

Yup.

A stock rocker arm puked up its bearings.

**axxdet** · 08-11-2008, 06:53 AM

so how did it get in the oil?

**Mr. Luos** · 08-11-2008, 06:56 AM

Originally Posted by axxdet

so how did it get in the oil?

Seriously?

**shady milkman** · 08-11-2008, 07:01 AM

Originally Posted by axxdet

so how did it get in the oil?

rocker arms are covered by oiland by well the valve cover...the same place where you poor your oil in..plus with the small size of it..it will very easily circulate around the system..once it gets back into the oil pan...the magnet picks it up...dont worry about it..valvetrain is a mystery to many..me included..but now you know...you can take your valve covers off and see the rockers right there.

**shady milkman** · 08-11-2008, 07:03 AM

98s are known for this..also the 07 or the 05 i cant remember..ls7 is known to do that...i would suggest getting the harland rockers to replace the rockers when you get a chance..but over all people have been driving with probs like that for relatively long time

**axxdet** · 08-11-2008, 07:04 AM

well i just figured that the tolerance would be so tight that it wouldn't be able to move around

**shady milkman** · 08-11-2008, 07:05 AM

Originally Posted by axxdet

well i just figured that the tolerance would be so tight that it wouldn't be able to move around

nope. oil windows and just tolerances all over the engine would allow for the needles to work their way down.

**Danger731** · 08-11-2008, 07:06 AM

Just replace the rocker that gave in, no need to change em all.

**shady milkman** · 08-11-2008, 07:07 AM

Originally Posted by Danger731

Just replace the rocker that gave in, no need to change em all.

true but while he is at it..might save him time down the road.

**axxdet** · 08-11-2008, 07:07 AM

pretty easy to do?

**shady milkman** · 08-11-2008, 07:08 AM

very easy. i have not done it..but the top half of the engine is pretty simple.

**Danger731** · 08-11-2008, 07:19 AM

If it were me I'd just replace whats broke and not fix what ain't broke.

Plus he is going to have to relash the whole valve train vice one cylinder, hardly a time saver.

If anything Id put in some 1.85 rockers.

**Mr. Luos** · 08-11-2008, 07:25 AM

Originally Posted by Danger731

If anything Id put in some 1.85 rockers.

Explain.

**Spaz** · 08-11-2008, 08:42 AM

Originally Posted by Danger731

If it were me I'd just replace whats broke and not fix what ain't broke.

Plus he is going to have to relash the whole valve train vice one cylinder, hardly a time saver.

If anything Id put in some 1.85 rockers.

why??? if he wants a cam further down the road he is going to have some math to do...

**Hi-Po** · 08-12-2008, 01:16 PM

Originally Posted by Mr. Luos

Seriously?

ah shit. Thats great.

I wouldnt go with an accelerated rocker. You will see a gain yes, but not much. If you ever plan on going with a different cam, you will be limited without changing back.

All Opinion of course.