Engine still knocking!!
08-08-2013, 07:12 PM
#31
Seasoned Member
Thread Starter
Join Date: Nov 2012
Location: Auburn, CA
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
Year: 95
Model: Cherokee
Engine: I6 4.0 242 HO
I'm down to the exhaust manifold, cam&bearings, or wrist pin.
When I was under the engine the pistons did have play, felt as there was a ball joint instead of a wrist pin, sound problematic? Maybe 1/4 in play in a circular motion, when I pulled rod bearings.
When I was under the engine the pistons did have play, felt as there was a ball joint instead of a wrist pin, sound problematic? Maybe 1/4 in play in a circular motion, when I pulled rod bearings.
08-08-2013, 07:13 PM
#32
Seasoned Member
Thread Starter
Join Date: Nov 2012
Location: Auburn, CA
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
Year: 95
Model: Cherokee
Engine: I6 4.0 242 HO
Didn't have that, but upon replacing bearings there was one bearing half that was snapped in 2 pieces.
08-08-2013, 07:39 PM
#38
CF Veteran
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 29 Likes
on
28 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Im on the other side of the united states to me I hear a normal 4.0 that could possibly have a lifter tick or exhaust leak best I can do from here .
08-08-2013, 08:05 PM
#39
Seasoned Member
Thread Starter
Join Date: Nov 2012
Location: Auburn, CA
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
Year: 95
Model: Cherokee
Engine: I6 4.0 242 HO
Sounds good, thank you.
It still knocks without muffler and cat, can it still be the manifold? Eliminated back pressure
It still knocks without muffler and cat, can it still be the manifold? Eliminated back pressure
08-11-2013, 03:45 AM
#40
Senior Member
Join Date: May 2011
Posts: 749
Likes: 0
Received 1 Like
on
1 Post
Year: 1997
Model: Cherokee
Engine: 4.0
seeing that bearing, i would pull the oil pan down and check the new bearings in that same journal. i bet you have an issue their, bearings dont break in half for no reason... can you post pics of the crank journals, those bearings are severely worn out....
08-11-2013, 08:36 AM
#42
CF Veteran
Join Date: Jul 2012
Location: SD
Posts: 1,395
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0
Not saying this has anything to do with your noise, but for future reference, you don't want to crank the engine with the starter prior to first start (or at least keep it to a bare minimum). It wipes all the assembly lube off the cam/lifters.
08-11-2013, 03:30 PM
#44
Seasoned Member
Thread Starter
Join Date: Nov 2012
Location: Auburn, CA
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
Year: 95
Model: Cherokee
Engine: I6 4.0 242 HO
08-11-2013, 03:30 PM
#45
Seasoned Member
Thread Starter
Join Date: Nov 2012
Location: Auburn, CA
Posts: 447
Likes: 0
Received 0 Likes
on
0 Posts
Year: 95
Model: Cherokee
Engine: I6 4.0 242 HO
I'll get pictures up tonight.