SpecV44

iTrader: (7)

Got it torn down last night. Apparently somewhere along the lines, a previous owner had at least 1 rocker arm de-bearing itself, there were like 20 needle bearings in the pan. In the pan with the bearings, were 4 or 5 1/4"x1/4" pieces of a bearing. There was only a FINE, FINE, FINE layer of metal on the bottom of the pan, and none of it came out with my 500 mile Castrol Syntec blend, the drain plug was also clean as a whistle (I havent cleaned it, and I have removed the drain plug 3 times now. Perhaps it isnt magnetic?). Hopefully I can get the caps pulled this weekend and post some pictures of the carnage, I am sure it is going to be spectacular.

The car should still move fairly well; 5.3, ls6 intake, UD pulley, longtubes, TB, ORY. Just leaving out the cam for now. Stopped at 3am last night, engine is in the k-member, underneath the car. Had some issues making my remote bleeder so I will start again tonight.

ICRAZY6

iTrader: (68)

/\/\ This is what I was going to guess reading the post. Glad you've got it all figured out.

SparkyJJO

iTrader: (11)

20W-50 oil? what the heck why? That's too thick, the engines call for 5W-30...

skyhighsami

iTrader: (8)

What happened to Royal Purple?

SpecV44

iTrader: (7)

the 20w50 was to decide if it was lifter noise, which apparently it wasnt

SpecV44

iTrader: (7)

okay, tore down the engine tonight. 4 lifters dead, along with 4 lobes on the cam dead. Seems like the 1st lifter on the cam either failed or collapsed, and those are the bearings that were in the pan, along with the chunks of metal (the roller ended up crushing once the bearings went, under the stress of the patriot dual springs). IDK if the engine was over-revved or what, but it doesnt matter now. Unsure as to why the other 3 lobes died, but I am leaning towards a bad break in. I will get pictures up tomorrow.

also seems like a couple main bearings were scored pretty decently, so idk where to go from here. the rods and rod bearings looked good, but the mains where kind of iffy on the crank side (the block bearing, not the cap) of the bearing.

SpecV44

iTrader: (7)

Pics at top.

Nastyc4

iTrader: (13)

WHen my LT4 blew up I had Royal purple in it It ran well for 3k with M1 but 200 km with RP before this happened ....

2redgmc

iTrader: (1)

Nastyc4 that is not a oil related Show us what the bearings looked like.


What did the used oil analysis show?

What did the cam look like?

What did the crank look like?

If your going to blame the oil for a failure please have somethng other than one pic than to back up your clame

Did you contact Royal Purple about this?

RPM WS6

iTrader: (3)

I bought a used car once, 15 hours later someone ran a stop sign and totalled it....

...I blame the oil.

EddyR

I have to disagree I have a 2011 chevy tahoe with 140,000 miles I used royal purple oil for the first time about 2 weeks ago after a few days I heard a tapping noise like a lifter tapping then by the end of the day it was very noticeable the next day straight knocking I will never use another royal purple product they are trash I would used golden state before ever using anything that even resembles their product

Roarin_8

iTrader: (5)

This is a 10 year old thread, only a few would see this post from the ones who posted already. Anyway I know for a fact that the springs caused the issue. Those patriot springs were garbage and the same thing happened to mine a few years ago, had to get a new cam, rockers, lifters, heads and oil pump. Valvetrain breakage - LS1TECH - Camaro and Firebird Forum Discussion

Car is running fine now with Brian Tooley springs.

WhiteBird00

iTrader: (4)

Did you let your girlfriend drive it? That may be the common thread between the two incidents out of millions of vehicles that use Royal Purple products.

RPM WS6

iTrader: (3)

Indeed!

But after 10 years, I think we can put this one to bed.