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never before seen TOD cause (and solution)


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seen an XT6 owner do this. tried reusing the cam carrier o-ring (the bottom corner one) with excessive sealant. it sucked up the sealant and caused same issues.

 

anaerobic sealant all the way, this wouldn't have happened.

 

i also took apart an ER27 tha ti picked up from someone and they installed a regular oring instead of the metal ring reinforced oring, glad i caught that ahead of time!

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Cam journals, lobes, the rocker pads, and the lifters themselves all looked fine. Low spring pressures + wide lobes / large journals was the saving grace there I'd say. These engines really are over engineered in many ways.

 

As a note...there was no sealant sucked up. That's ALL o ring.

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