[2010 1500 5.7L BIG HORN] Name that sound? Tick turned into a scrape?!

[CoreyB]

This sound used to be a loud tick/knock.. with the same pattern!

When I bought the truck it had a cylinder 8 misfire. I switched the spark plugs and it stopped stuttering over 3K RPM.. code went away and I thought that was the issue.

The tick was always still there. I figured it was probably the exhaust manifold bolts. Still yet to explore that possibility.

Well today, that tick turned into a terrible loud scraping sound with the same pattern.

My guess is that it's the lifter eating up the cam more aggressively?

Hear this:




Do I need a new engine, or can I get by for a while longer replacing the lifters and camshaft.. along with head gaskets, timing chain, etc.

Figuring I can dismantle and get access to the lifters and camshaft with the repair manual instructions for replacement.

Then I will get in a mechanic to install a NON-MDS camshaft and possibly the beefier hellcat lifters to avoid this issue for a while longer, and it will cut down on labour hour costs if I do the rest.

Thoughts?

 

[Burla]

It's not exhaust bolts. Here is ram forum dyi cam thread, money thread right there if you will dyi.

You could try a lubrication strategy, it works 50-80% of the time depending on which you go with, kinda crazy an oil change can do that much, but ram forum members put in the work and the results are very good. The higher the mileage, the harder it is to get the moly/ester strategy to work (redline 5w30 or lubegard biotech added to your oil), and the only thing left is thick oil strategy. How many miles on truck?

 

[CoreyB]

It's not exhaust bolts. Here is ram forum dyi cam thread, money thread right there if you will dyi.

You could try a lubrication strategy, it works 50-80% of the time depending on which you go with, kinda crazy an oil change can do that much, but ram forum members put in the work and the results are very good. The higher the mileage, the harder it is to get the moly/ester strategy to work (redline 5w30 or lubegard biotech added to your oil), and the only thing left is thick oil strategy. How many miles on truck?

I am fairly certain it's the lifters on the cam, many confirmations on another group.

It's 130k miles, right when they usually go. So I'll do the cam and lifters, upgrade it to a better cam and hellcat lifters. I already tried changing out the oil for redline 5w30, didn't really make a difference since the lifter was too far gone. Noticed a small one though.

 

[Burla]

That scrap is concerning, I never heard a lifter sound like that. Maybe cam bearing? Might want a uoa to check copper levels. Likely whatever is causing that scrape is elevating wear metals.

 

[crackerjack1957]

This sound used to be a loud tick/knock.. with the same pattern!

When I bought the truck it had a cylinder 8 misfire. I switched the spark plugs and it stopped stuttering over 3K RPM.. code went away and I thought that was the issue.

The tick was always still there. I figured it was probably the exhaust manifold bolts. Still yet to explore that possibility.

Well today, that tick turned into a terrible loud scraping sound with the same pattern.

My guess is that it's the lifter eating up the cam more aggressively?

Hear this:




Do I need a new engine, or can I get by for a while longer replacing the lifters and camshaft.. along with head gaskets, timing chain, etc.

Figuring I can dismantle and get access to the lifters and camshaft with the repair manual instructions for replacement.

Then I will get in a mechanic to install a NON-MDS camshaft and possibly the beefier hellcat lifters to avoid this issue for a while longer, and it will cut down on labour hour costs if I do the rest.

Thoughts?

Afraid you are pretty much spot on with lifter/cam diagnosis........sound is metal against metal.

If it were mine with that many miles with that noise I would tear down engine completely & inspect before I made decision to rebuild or buy new engine.
If you just wanted to repair to sell or trade then yes cam & lifter replacement.