Glitter in 6.2L oil ... please help

[j91z28d1]

I was looking for a decent video but only saw this quickly.

but basically the lifter rides on the cam lobe and pushes the back of the rocker arm up, which pushes the front down. the spring pressure then pushes the opposite way to follow the down side of the lobe. if the valve is stuck down the spring can't come up and close the valve. when I lifter gets stuck it doesn't open the valve.

I don't know if that makes sense haha. but both are needed but kinda the exact opposite of each other. you'll have to figure out which side is causing the slop.

 

[thefrey]

I was looking for a decent video but only saw this quickly.

but basically the lifter rides on the cam lobe and pushes the back of the rocker arm up, which pushes the front down. the spring pressure then pushes the opposite way to follow the down side of the lobe. if the valve is stuck down the spring can't come up and close the valve. when I lifter gets stuck it doesn't open the valve.

I don't know if that makes sense haha. but both are needed but kinda the exact opposite of each other. you'll have to figure out which side is causing the slop.

Yep that makes total sense.

Did the rest of the teardown today. Planning on trying to free the lifter and then tune out AFM

Here’s a video of the rockers with a better angle of the valve springs. I don’t think the valve is stuck, I think the lifter is just collapsed

 

[thefrey]

Oh yeah, that o-ring was way past ready to be replaced. That coating on the bottom of your oil pan... I can visualize small pieces of it flaking off, looking like metal as you drain the oil. That looks like an engine that has significant blow by, a partially plugged PCV system, or more likely the previous owner didn't change the oil often enough.

Pulled apart my intake today, I noticed a PCV line from the passenger valve cover to the top of the manifold was broken. I wonder if that could have caused some carbon buildup issues

 

[j91z28d1]

Yep that makes total sense.

Did the rest of the teardown today. Planning on trying to free the lifter and then tune out AFM View attachment 456835

Here’s a video of the rockers with a better angle of the valve springs. I don’t think the valve is stuck, I think the lifter is just collapsed

from that angle, it looks a lot better.

hope you get it to release

 

[donjetman]

Pulled apart my intake today, I noticed a PCV line from the passenger valve cover to the top of the manifold was broken. I wonder if that could have caused some carbon buildup issues

Not having done https://static.nhtsa.gov/odi/tsbs/2014/MC-10114272-9999.pdf causes carbon buildup. Ask me how I know.

That broken line is for the clean (filtered air) side of the PCV system. The break/leak allows unfiltered air (dirt) into the engine crankcase which mucks up the oil thus shortening the engine life.

 

[thefrey]

Not having done https://static.nhtsa.gov/odi/tsbs/2014/MC-10114272-9999.pdf causes carbon buildup. Ask me how I know.

That broken line is for the clean (filtered air) side of the PCV system. The break/leak allows unfiltered air (dirt) into the engine crankcase which mucks up the oil thus shortening the engine life.

View attachment 456860
View attachment 456861

Dang. I’m glad I noticed it then. I’m surprised there wasn’t a code or any symptoms. I should have the updated cover since it’s a 2013.

The intakes on the heads have a little bit of carbon buildup. I think I saw maybe one of your posts that you cleaned that really well. Do you have any tips on how to clean it (perhaps without walnut blasting haha)

 

[rdezs]

Dang. I’m glad I noticed it then. I’m surprised there wasn’t a code or any symptoms. I should have the updated cover since it’s a 2013.

The intakes on the heads have a little bit of carbon buildup. I think I saw maybe one of your posts that you cleaned that really well. Do you have any tips on how to clean it (perhaps without walnut blasting haha)

Rotate the engine till the valve you're working on is closed. Get a three pack of extra firm toothbrushes, and some diesel. Some people prefer to use seafoam. I've also experimented with felpro's gasket remover, waiting 15 minutes after applying it to the valve stem with quite a bit of success using the toothbrush.

 

[j91z28d1]

I have forgotten to hook up that line to the air box and saw a good 10% change in fuel trims. but it didn't set a light.

worth fixing.

as for cleaning everything. I'd just work on releasing the lifter. you'll mostly have the heads off some day and can clean then. get her running. add a catch can and throw some techron in the fuel every now and then. maybe switch to the restoe and protect oil. it seems to be doing a good job cleaning varnish off the inside of engines.

 

[thefrey]

I have forgotten to hook up that line to the air box and saw a good 10% change in fuel trims. but it didn't set a light.

worth fixing.

as for cleaning everything. I'd just work on releasing the lifter. you'll mostly have the heads off some day and can clean then. get her running. add a catch can and throw some techron in the fuel every now and then. maybe switch to the restoe and protect oil. it seems to be doing a good job cleaning varnish off the inside of engines.

That would explain a lot imo. Seems like my MPGs were a little low. Will try that and see what happens

I got a couple days until the lifter release tool comes so that’s why I was asking about cleaning. Will keep me busy lol

I’m already running some restore and protect so I’ll probably run that until I get rid of it

 

[thefrey]

Not having done https://static.nhtsa.gov/odi/tsbs/2014/MC-10114272-9999.pdf causes carbon buildup. Ask me how I know.

That broken line is for the clean (filtered air) side of the PCV system. The break/leak allows unfiltered air (dirt) into the engine crankcase which mucks up the oil thus shortening the engine life.

View attachment 456860
View attachment 456861

Another thing, should I replace my intake manifold gaskets? They look ok. I’m assuming they have been replaced before. But not sure if I should just replace them while I’m in there


Edit: I’ll probably just throw a new pair on while it’s out. Date code says November of 2018 so doesn’t hurt for new ones