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4.2 Rebirth

Old 05-15-2018, 09:11 AM
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The cam looked good and all lobes checked out in spec. Lubed it up and stuck it in.


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Old 05-15-2018, 09:15 AM
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Went ahead and installed new timing gears, chain and tensioner.
Remember, the trick to the gears are to put them on at exactly the same time with the chain. Seen a lot of people struggle with this for some reason.


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Old 05-15-2018, 09:17 AM
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Very nice pics and description. That before and after cleaning shot is just plain cool....

I really need to do this to my 200k+ mile 2003 4.2L. It has a tiny valve cover leak. But I don't have any covered work area...just the trees out in the yard. But my end goal is to swap in a 5.0L Coyote. So my old 4.2 block may turn into an additional traction weight for the light rear end.
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Old 05-15-2018, 09:22 AM
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Thank you.

Next up was to clean off the timing cover and add the oil pump and front seal.



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Old 05-25-2018, 12:01 PM
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The heads were not in horrible shape but I thought since Blakes was already cleaning it up, I had them go ahead and do a complete valve job and pressure test.
Then got ready to get them mounted.




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Old 05-25-2018, 12:08 PM
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Next was doing the torque steps on the head bolts. This is a lengthy process. Notice the paint marks on the bolts. The last step is to pull the bolt another 180 degrees. Marking is a must.
Added the pushrods and rocker arms.
Rocker arms get tightened down to 29ftlbs.


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Old 05-25-2018, 12:10 PM
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Next I added a sparkling new water pump to keep everything flowing properly.


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Old 06-04-2018, 03:47 PM
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Flipped her over and got the oil pan mounted


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Old 06-04-2018, 03:48 PM
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Next item was to get the vibration damper mounted

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Old 06-04-2018, 03:51 PM
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Cam synchronizer installed and water outlet pipe mounted.


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