Is this abnormal wear on the cam lobes of my 2TR-FE?

Wondering if this is something I should keep any eye on.

 

How many miles?

I'm not an expert but it looks fairly normal to me.

 

About 100K

 

Did you run a fingernail across them/ do they feel worn?

 

Looks normal to me. Is there a groove?

Also really clean for 100k miles.

 

Looks normal. I'm betting there's no ridge or groove in those lobes. Keep running it.

 

Looks pretty clean to me. I wouldn’t worry about it.

 

thats normal. that motor looks to have roller followers and the marks are from the roller to cam lobe interface

 

In one way, it looks normal
but in another way, they look somewhat worn at the inner sections
Either way, what even happens when they wear? Smash valves? Incomplete combustion/reduced power?

I am hoping it's not too expensive to buy a camshaft. I wonder if there are even any more powerful aftermarket ones. I know with 4.0L 1GR-FE a popular mod is cam gear mod, but that changes the timing via the cam gear and not the lobes.

 

It has hydraulic lash adjusters on one side of a rocker arm with roller and the valve stem on the other side of the rocker arm.

 

From what I can tell, no grooves. Thanks!

 

I have noticed a tapping when I start the truck on cold days, but it goes away after it warms up. Should I get the feeler gauges out and do some check and adjusts?

 

No,perfectly normal.

 

There is no adjustment. It has Hydraulic Lifters or "Lash Adjusters".

 

Ah ok, I just researched those and learned something new. Thanks again.