Push rod anomaly

Deputy Dodge

TJ Enthusiast
Original poster
Supporting Member
Joined
Feb 3, 2021
Messages
215
Location
Washington
Anyone seen this before? I changed the pistons and changed the valve seals at the same time. Valves are free and there was no lifter tick. 99 4.0, unknown mileage.

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Anyone seen this before? I changed the pistons and changed the valve seals at the same time. Valves are free and there was no lifter tick. 99 4.0, unknown mileage.

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Looks like it wasn't built using seamless tubing . If its just one pushrod , swap it out for with a pushrod measuring the same length . Also look at the rocker arm for that pushrod for scoring due to lack of oil , it may be possible for oil to spray out the side of the seam .
 
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I thought the same about it being a cracked seam. The stain looks more like rust than oil. All the rockers were cleaned in the solvent tank and look ok.
 
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None of the pushrods in my 04 looked like that when I pulled them to install the Edelbrock head. All normal seemless ones

I'd replace it for sure.
 
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The head had never been off but I dont know the service history of the engine. I replaced all pushrods and head bolts with melling. I've never seen or heard of anything like it.
 
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