I have a '99 4.0L. I was doing an oil change the other day, and noticed there were metal flakes in it. what should i do?
:scared::doh:
(Click the pics for larger images)
actually, i was cruising on my way home from work when i developed serious rod knock. motor was pulled this past weekend. after pulling the head off, we were met by this in #2:
you think it will still hold compression?:laugh2:
I am not entirely surprised, i got this jeep with 27,500 miles, and beat it like a rented red headed step mule child. it had mild piston slap developed around 130K miles, and then this. Ran like a sewing machine until the bitter end, and I mean bitter. even when i was pulled over to the shoulder, it was able to pull me far enough to find a mile marker to read for when i called for a tow. almost 4 weeks later, it started in my driveway too.
some more pics:
a "good" piston. if anyone wants to know what piston slap is, it is the skirt rubbing on the cylinder walls, rubbing off of the black coating:
when it grenaded, a piston ring got in-between the piston, and the cylinder wall and did this:
that is a crack. there was a gallon or so of coolant in the oil pan too. funny thing is, after looking at these pictures up close, you can still see a crosshatch hone! the piston also smacked the sparkplug. head looks ok, but i am not going to use it again
going to rebuild a '98 wrangler stroker. Pulling that donor this Saturday:woohoo:
if anyone has some insight as to how this could have happened, i would love to hear some theories, and if anyone wants other pictures of anything, let me know. i am holding on the the motor until the new one is in, as a reference for brackets, bolts, which stupid oil pan bolt holds the 02 sensor etc. thought you all would get a kick out of the carnage, which is now a pile of scrap metal
if you were wondering, it is not the 0331 head, it is the 0630, and the cam looks beautiful
:scared::doh:
(Click the pics for larger images)
actually, i was cruising on my way home from work when i developed serious rod knock. motor was pulled this past weekend. after pulling the head off, we were met by this in #2:
you think it will still hold compression?:laugh2:
I am not entirely surprised, i got this jeep with 27,500 miles, and beat it like a rented red headed step mule child. it had mild piston slap developed around 130K miles, and then this. Ran like a sewing machine until the bitter end, and I mean bitter. even when i was pulled over to the shoulder, it was able to pull me far enough to find a mile marker to read for when i called for a tow. almost 4 weeks later, it started in my driveway too.
some more pics:
a "good" piston. if anyone wants to know what piston slap is, it is the skirt rubbing on the cylinder walls, rubbing off of the black coating:
when it grenaded, a piston ring got in-between the piston, and the cylinder wall and did this:
that is a crack. there was a gallon or so of coolant in the oil pan too. funny thing is, after looking at these pictures up close, you can still see a crosshatch hone! the piston also smacked the sparkplug. head looks ok, but i am not going to use it again
going to rebuild a '98 wrangler stroker. Pulling that donor this Saturday:woohoo:
if anyone has some insight as to how this could have happened, i would love to hear some theories, and if anyone wants other pictures of anything, let me know. i am holding on the the motor until the new one is in, as a reference for brackets, bolts, which stupid oil pan bolt holds the 02 sensor etc. thought you all would get a kick out of the carnage, which is now a pile of scrap metal
if you were wondering, it is not the 0331 head, it is the 0630, and the cam looks beautiful
