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1987 2006 Jeep 40l Inline Six Cleaning

2. We started with a '91-'95 block (casting No. 503008405) but switched to an '00 block (casting No. 53010449) for the reasons noted in the text. Step one was a thorough cleaning, followed by align-honing the crankshaft saddles, boring the block and honing, after which the block is thoroughly cleaned again. After this, new cam bearings were installed.
1987-2006 Jeep 4.0L Inline Six - Inside The Inline

2. We started with a '91-'95 block (casting No. 503008405) but switched to an '00 block (casting No. 53010449) for the reasons noted in the text. Step one was a thorough cleaning, followed by align-honing the crankshaft saddles, boring the block and honing, after which the block is thoroughly cleaned again. After this, new cam bearings were installed.  View Related Article

 

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