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new motor/golden opportunity

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Old 07-30-2013, 01:46 PM
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Default new motor/golden opportunity

Hey guys, i have an interesting situation. My jeeps 4.0 has a rod knock however i have the opportunity to buy a 4.0 off a friend for a couple hundred bucks! My question is this: when i get the motor from my friend ill have some time before installing it, what tune ups/checks should i do that would be a ton easier with the motor out of the vehicle?
Old 07-30-2013, 04:56 PM
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I would replace the expansion plugs and any gaskets/seals that are leaking.
Old 07-30-2013, 05:00 PM
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cam and lifters... as stated freeze plugs and all gaskets/ seals/ timing gears if needed when swapping cam....
Old 07-30-2013, 07:48 PM
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Pull the oil pan and take a good look at the piston skirts for any signs of cracking or stress.

What year motor and how many miles? Do you know anything of it's history or maintenance?
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