u/FamiliarWar9820

Multiple lobes are wiped especially the center one to the right (completely round). It looks like I have one collapse lifter as well if I’m correct the one that looks slightly recessed not sure

Does anybody have any clue why this camshaft that’s only had 10 hours in this engine be so bad
Was a used cam but nothing wrong with it

I’m pretty sure I installed it with assembly lube

Could I have torque on the lifters too hard

Or not enough oil

There was metal in my oil and oil change ago a decent bit. It was more fine Bits of metal, is my crank gonna be OK

What can I do to prevent this in the future? I have an extra camshaft.

1986 four-cylinder 3 L 140 hp mercruiser

This is a boat engine 1986 MerCruiser 3 L four-cylinder 140 hp

I’ve had this boat out and running for a couple days no problem. I just recently redid the head on it and it has a new style head with a nice felpro gasket

I checked my compression when I got home and I have decent compression same as when I went out

I checked my rockers to see if they were too tight and a valve was sticking open, but I loosen them up and it didn’t change and then I re-tighten them and nothing

And it wouldn’t make sense with it having good compression

I’ve tried adjusting the distributor cap and it doesn’t help with it

The fuel air mixture screw doesn’t do anything

The only thing I could really think of is it skip timing but I just put a new aluminum cam gear on it and I wouldn’t imagine the two gears skipping time. It would be pretty impossible in my imagination.

But any advice would be greatly appreciated

Newly rebuilt carb by the way, ran wonderful for 30 minutes

And three days prior for all day

Sorry for grammar mistakes