Anyone hear about this. I'm going to post this in a couple of other sections and see the results. GM knows about it, but apparently won't correct it...

 

GM is gonna hunt you down!

 

What is wrong with them....and how can you fix it?

 

Might as well go for the gold!:
Needle Bearings Found In Oil Pan (Replace Rocker Arms) #02-06-01-029
1998-2002 Chevrolet Camaro, Corvette
1998-2002 Pontiac Firebird
2002 Cadillac Escalade, Escalade EXT
1999-2002 Chevrolet Silverado
2000-2002 Chevrolet Suburban, Tahoe
2002 Chevrolet Avalanche
1999-2002 GMC Sierra
2000-2002 GMC Yukon, Yukon XL
2003 HUMMER H2
with 4.8L, 5.3L, 5.7L or 6.0L V8 Engine (VINs V, T, G, S, U -- RPOs LR4,
LM7, LS1, LS6, LQ4, LQ9)
Condition
Some customers may comment or technicians may notice needle bearings being
found during an engine oil change. The bearings may be found in either the
drain pan used or on the magnetic oil pan drain plug.
Cause
One or more rocker arms may have experienced a bearing failure.
Correction
Inspect all of the rocker arms for bearing retainer cap failure. If one or
more defective rocker arms are found, replace all 16 rocker arms. Refer to
the Engine Mechanical sub-section in the appropriate Service Manual.
If no condition with the rocker arms is found, refer to the service history
for previous rocker arm repair. If previous rocker arm repair was made,
then the engine may not have been thoroughly cleaned of loose roller
bearings. If no previous rocker arm repair was made, then look for another
condition.
Remove the oil pan and clean out any additional bearings found within the
oil pan. Refer to the Engine Mechanical sub-section in the appropriate
Service Manual.
Install the oil pan. Refer to the Engine Mechanical sub-section in the
appropriate Service Manual.

No changes have been made. They are still installing the RR's on all the engines above. No recall has been made!...

 

So they replace them with the same ones?

 

That is correct. You can replace them yourself with stock RR's for around $13 or $14 each. Aftermarket will cost you appx. $800 for a good set of 1.7:1 RR's. GM only replaces them if you find the problem (or they find the problem) durning an oil change. I don't know time limits and warranty policy, but there is no recall...

 

GM won't replace them because it is not a problem with all cars. That is just a service bulletin that you posted. They also have service bulletins on how to replace a clutch but it doesn't mean we have bad clutches in our cars.

 

Thats a GM service bulletin that is distributed to GM repair facilities. It's not really a problem unless you find needle bearings in your oil or magnetic plug. Reread the bulletin carefully and repost your thoughts...

 

I think you need to reread your post. You said "All LS1 engines" when that is not true!

 

Yes, "potential" Roller Rocker Problem on All LS1 Engines...would have been a better topic header. I guess you actually have to find them in your engine for it to be a problem. Kinda like a weak defective radiator hose letting loose. It's not really a problem until the engine overheats and siezes-up...I guess...(disclaimer notice: this is in no way to suggest that LS1 equipt Camaros/Trans Am have weak or defective radiator hoses installed. This was an example for illustrative purposes only)...
(I stand corrected)

 

how many posts have you seen on here or LS1.com about defective roller rockers? not many, if any im sure... all cars will have their probs/defective parts.
jeremy

 

Actaully I live in central illinois, and my local dealer here changes rockers on around 1 or 2 cars a week here. I checked into it. My stock rockers just failed, and one of them, came out in 2 pieces. when i removed the rest of the set, there was a considerable amount of "slop" in the roller bearings as well. Now i am installing the Comp 1.85 rockers to fix the car.

 

If it was a problem with ALL LS1's, then there would be a recall. However, it is something to be aware of.......same as the pushrods, which have been known to bend, but it all depends on the circumstances (ie: revving to ~7000 rpm with all stock internals). I will keep that in mind though, because my engine makes a "ticking" noise (ever since day 1) that is separate from the piston slap noise (which goes away when warm). This "ticking" sounds like the lifters/rockers when you're adjusting hydraulic lifters by loosening them and retightening them while the engine is running.

 

Not true. Why do you think most of the GM models have front rotor warping problems? GM does nothing about this. They just continue to use rotors made w/inferior metal. If you get them replaced you end up w/the same problem.

I also know Grand Ams have a very common problem with lower intake manifold gaskets. GM has redesigned the gaskets for replacement several times, but have yet to issue a recall. Why? Most start leaking after the warranty it expired.

 

FYI - Although the GM stock LS1 rockers do have a roller fulcrum, they are still considered a solid roller since the tip is not a roller tip, which is what people mean when they say "roller rocker".

Secondly, as others have said, this is not a "known problem" with all LS1s. I have 68k miles on my engine and I have the original rockers. All that service bulletin is saying is identifying a quick fix to this problem in case a dealer comes across it and doesnt want to spend the time to troubleshoot the whole problem.

Lastly, to whoever said that all LS1s have bad rotors, I must be an exception, cause I have 68k miles on my ORIGINAL factory front rotors. The front pads were replaced once at 50k miles, and then the rotors were turned that one time. I have 18k miles since then, and I have absolutely no brake warpage. My rear brake pads and rotors are 100% original stockers! I must be lucky!