Replacing rod bearing
11-26-2012, 08:29 PM
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Year: 94
Model: Cherokee
Engine: 4.0 I6
Replacing rod bearing
Is it possible to change a rod bearing by dropping the oil pan while the motor is in my jeep? I've replaced about 5 I6's but I've never really cracked into one. '94 I6 auto
11-26-2012, 08:48 PM
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Year: 94
Model: Cherokee
Engine: 4.0 I6
Thank you sir. Will I need to take the crank completely out, or will I be able to turn it by hand? Or do you know?
11-26-2012, 08:53 PM
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I did it that way on my first XJ, it was a major PITA to get the pan completely out, I don't remember what I did, I had to raise the body to lower the axle or something. I could turn the crank on mine by using the harmonic balancer bolt.
But really, in hindsight, I should have pulled the engine and did all the bearings.
But really, in hindsight, I should have pulled the engine and did all the bearings.
11-26-2012, 08:55 PM
#6
You cannot remove the crank without removing the tranny, torque converter, flexplate....
Remove your plugs, tranny in neutral, 19mm socket on the harmonic balancer bolt and turn it clockwise only to rotate the crankshaft.
Remove your plugs, tranny in neutral, 19mm socket on the harmonic balancer bolt and turn it clockwise only to rotate the crankshaft.
11-26-2012, 08:57 PM
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11-26-2012, 09:07 PM
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Year: 94
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Thanks guys. I'm 90% sure I spun one of them today, but if I had to pull the motor anyways I was gonna replace the motor. We'll see tomorrow when I drop the pan.
11-26-2012, 09:56 PM
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
If you spun a bearing the chances are good that the rod and crank may be damaged. I see no problem doing an in frame bearing change if they're just simply worn, but if you have a spun bearing it might be a wise choice to pull the engine and have a machine shop check the crank and rods.
11-27-2012, 06:29 AM
#12
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
If you spun a bearing the chances are good that the rod and crank may be damaged. I see no problem doing an in frame bearing change if they're just simply worn, but if you have a spun bearing it might be a wise choice to pull the engine and have a machine shop check the crank and rods.
11-27-2012, 07:26 AM
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Year: 94
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I'll be getting a new rod, so that won't be an issue. As for the crank, I'll take it to a shop if it turns out to be the rod bearing.
02-26-2013, 06:46 AM
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im doing the rod bearings in my 2000 cherokee sport, does anyone know what the oil clearance should be with the new bearings? im assuming the bearings shouldnt fit too tightly, its my first time doing a bearing job
02-26-2013, 06:53 AM
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Year: 1990
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I'd have to consult my manual.