Bearing Clearances, Mains and Rods.
01-20-2010, 12:53 PM
#1
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Year: 1998
Model: Cherokee
Engine: 4.0
Bearing Clearances, Mains and Rods.
I've searched here, without sucess. The information is not even in the Chilton manual!
An online source gave the clearances as: Mains 0.0010 to 0.0025 inch
Rods 0.0015 to 0.0020 inch
That seems REALLY tight AND close.
Can someone confirm these ?
Engine is 2000 Cherokee 4.0
An online source gave the clearances as: Mains 0.0010 to 0.0025 inch
Rods 0.0015 to 0.0020 inch
That seems REALLY tight AND close.
Can someone confirm these ?
Engine is 2000 Cherokee 4.0
01-20-2010, 06:47 PM
#2
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Year: 2000
Model: Cherokee
Engine: 4.0L
Those numbers are correct according to my Haynes Manual,
Con Rod:
Desired 0.0015"-0,002" Allowable 0.001"-0.003"
Main Bearings:
Desired 0.002" Allowable 0.0025"
Con Rod:
Desired 0.0015"-0,002" Allowable 0.001"-0.003"
Main Bearings:
Desired 0.002" Allowable 0.0025"
01-20-2010, 09:40 PM
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Year: 1998
Model: Cherokee
Engine: 4.0
I checked one Rod on the replacement engine and it came in right at anout .0018" The bearings look like they just came out of the box; not a mark on them. No embedded grit, all pure silver in color. Perfect.
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