All the lifters where nice and flat on the bottoms, the cam didnt have any terrible wear, (aside from one side of each lobe being slightly worn off) that is what worries me.

 

Cam bearing surfaces looked good, didnt check the cam bearings, would have replaced...

 

Got a vacuum gauge? A bad cam will kick the vacuum needle whenever the affected cylinder fires. You'll get a flutter.

Sounds like a lifter issue to me. What do you have for oil pressure hot/cold?

 

Cold 40, hot 20-25

 

Krawler, that there on U-tube is an absolute worst. I had run it to temp, let it cool an hour, then recorded that right after start-up. (with 275K). Jeb, I'm really at at a loss. I'm just swinging at straws thinking end-play or a lifter. No BS, it was making that ball-peen on metal knock in 02,, well over 100,000 miles ago.

In any case l'll be here when the thing lets go.

I posted that U-Tube because what some of us might think of as "deadly" might not be. Sure as shis, it sounds like a rod!

 

like i said dflintstone, urs sounds more like piston rattle... there are a couple of threads related to this issue...

rawkkrawler if the cam is showing signs of weaar that can be ur issue bit w/o ;pics cant make a determination. i still think you are going to find that rod bearing is worn again....... or an issue with that journal....

 

Just my opinion, it's unreasonable to expect 100,000 mile reliability from a mish-mosh of old parts. If the vehicle is worth a new engine, replace it, if not move on....

 

Much thanks Jeb.. I just don't know. Others have posted with what sounds like the same knock to me. It seems it doesn't mean trouble is at hand. In 2001 while working on my jeep for the po I had a wrench buddy come listen as well. (the po ran 5-30). He agreed that solid, steady knock from the bottom rear sounded like a rod. I think that was at 135-145K. Now at 275...? Idk.

Sort of off topic, but I had the thought that crank end play is something that could be checked without pulling the pan.

 

Re-reading I see "ticking" ....maybe a video could help.

 

Sounds like a failed lifter hammering on the cam instead of riding it to me. Sounds like a hammer because that's pretty much what it's doing.
It's been doing that for 125K miles and 12 years, lol. Anything else would've broken by now. No way a rod or piston skirts would put up with the sort of impact necessary to generate that level of noise for 125K.

 

Pulled my trans and crank, the crank was shot along with all my new bearings. (Shavings all in oil pan) pulled the crank to be replaced... Lost $150 in laziness there. $125 gets me a reman. Crank and a new bearing set.

The wrist pins feel good, and all rods had significant play before crank was removed.

 

that reman crank will be turned, different journals may use different size bearings... keep that in mind when putting it together.

 

Buyin matched bearings from the crankshaft seller, he grinds them, and sell bearings for them for $125... I spent more on bearings alone, and shop wants $175 to grind my old shaft.

 

Crank shafts come with proper bearings according to amount it was turned.Napa sells them....http://www.napaonline.com/Catalog/Ca...320_0362569764

 

The person who ground the shafts sells full bearing sets for them for $125... Steal of a deal.
And that's with shipping.
He has them standard and 10 down.