oil pan
#1
CF Veteran
Thread Starter
Join Date: Jul 2012
Location: SD
Posts: 1,395
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
oil pan
Looks like I'll be dropping the oil pan on my '98 XJ, 4.0, 4x4, 3" lift. I'm expecting to find pieces o' piston greeting me. Any "gotchas" to dropping the pan, or is it pretty straight forward? Thanks in advance.
#2
CF Veteran
Join Date: May 2009
Location: Glen Burnie, MD
Posts: 1,844
Likes: 0
Received 3 Likes
on
3 Posts
Year: 1994
Model: Cherokee
Engine: 4.0 H.O. K&N, Borla headers, custom down pipe, magnaflow hi-flo cat, flowmaster to turn down tip
pretty strait forward, make sure you dont catch the oil pick-up tube on the baffle lip and the front of the oil pan sump.
just drop it strait down as far as possible, then eyeball it after that.
just drop it strait down as far as possible, then eyeball it after that.
#4
ha funny coincidence.. im pulling my pan tomorow cuz im pretty damn sure i'll be finding the skirt from the #4 piston floating in there. been havin a loud funky sounding knock comin from cyl 4, listened to a few videos of xj's with broken piston skirts and it sounds dead on.. so ughhh.. haha.
anyway, the more lift you have the easier it'll be, i had to swap pans on my stock jeep and it was kind of a pain but not really that bad; youve got 3" lift so yours should come out fairly easily. if memory serves, the starter needs to be removed.
anyway, the more lift you have the easier it'll be, i had to swap pans on my stock jeep and it was kind of a pain but not really that bad; youve got 3" lift so yours should come out fairly easily. if memory serves, the starter needs to be removed.
#6
Senior Member
Join Date: Nov 2012
Location: Tx
Posts: 999
Likes: 0
Received 0 Likes
on
0 Posts
Year: 2001
Model: Cherokee
Engine: I-6
I did this last year on mine I jacked the jeep up set it on stands let the front suspension droop . I had to unbolt the pass side upper control arm to get the pan out , as others stated above you will have to fanagle the pan past the pick up .
#7
CF Veteran
Join Date: Oct 2011
Location: Summerville, South Carolina
Posts: 2,613
Likes: 0
Received 0 Likes
on
0 Posts
Year: 99
Model: Cherokee
Engine: 4.0
Originally Posted by Aljay
I did this last year on mine I jacked the jeep up set it on stands let the front suspension droop . I had to unbolt the pass side upper control arm to get the pan out , as others stated above you will have to fanagle the pan past the pick up .
Trending Topics
#9
CF Veteran
Thread Starter
Join Date: Jul 2012
Location: SD
Posts: 1,395
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
ha funny coincidence.. im pulling my pan tomorow cuz im pretty damn sure i'll be finding the skirt from the #4 piston floating in there. been havin a loud funky sounding knock comin from cyl 4, listened to a few videos of xj's with broken piston skirts and it sounds dead on.. so ughhh.. haha.
#10
CF Veteran
Join Date: Aug 2010
Location: Canton, MI
Posts: 8,357
Likes: 0
Received 82 Likes
on
67 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
I'm curious: does yours quiet down when you pull the #4 plug wire? I've had alot of mechanics listen to mine, with little agreement on the cause of the noise, so I'm doing exploratory surgery. Mine sounds very much like Way Weird's video of the the broken piston skirt, but the noise doesn't go away when I pull plug wires, so I'm not sure.
Try this: Engage parking brake, start engine, place tranny in drive, hold brake and give it a little gas. If the noise dissipates it may be loose flex plate/torque converter bolts or cracked flex plate.
If the above proves true, remove the flex plate inspection cover and check the tightness of the four flex plate to torque converter bolts, inspect for cracks in the flex plate, and inspect for elongated bolt holes in the plate.
#11
CF Veteran
Thread Starter
Join Date: Jul 2012
Location: SD
Posts: 1,395
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Thanks, Ken. I've had the cover off. The plate->converter bolts are fine, and I can see no cracks. However, I've heard it said that many times the flexplate breaks around the crank bolts, and can't be seen unless the trans is removed.
#12
I'm curious: does yours quiet down when you pull the #4 plug wire? I've had alot of mechanics listen to mine, with little agreement on the cause of the noise, so I'm doing exploratory surgery. Mine sounds very much like Way Weird's video of the the broken piston skirt, but the noise doesn't go away when I pull plug wires, so I'm not sure.
so i pulled my pan today, (tight squeeze but i didnt remove my starter), and found a lot of metal chunks and shrapnel, floating around in the pan and clogging my pickup tube. peeked up and sure enough, the skirt was broken clear off the #4 piston.
#14
CF Veteran
Join Date: Aug 2010
Location: Canton, MI
Posts: 8,357
Likes: 0
Received 82 Likes
on
67 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Did you try loading the flexplate like I described in the post above?
#15
CF Veteran
Thread Starter
Join Date: Jul 2012
Location: SD
Posts: 1,395
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Yes, I did. The noise did not lessen under load. I put it in gear and held the brakes, and revved it up to approx 1600 rpm, then put it in neutral and revved it to about 1600 rpm, and there was no difference in the noise between neutral and in gear.