Found 1 failed push rod at #4 and #6 in my 2015 6.2L L86. I replaced all 16 with Brian Tooley Racing PR7850312 BTR. That Charles has for sale and shipping. I rotated the engine with the spark plugs out and while replacing the push rods I turned the crank over several times.
On initial start it was noisy as the lifters pressurized with oil and returned to their normal condition. I only ran it for a few seconds twice to allow oil pressure to build. After the third start it was quiet again. I know I should have cranked it over with the plugs disconnected.
Truck is running great again and there is no more ticking. Using the Range AFM disable device until I can send the ECM for programming.
My question is whether the 10 or 15 seconds of running it twice may have done any damage to the valve train?
I will be removing and cutting open the oil filter to inspect the pleats for signs of metal.
Just want to hear anyone's opinion or experiences.
Thanks!!
Jimbo
It shouldn't have caused any damage. If you do find metal in the pleats of the filter, it's likely from something else. You could have a roller on a lifter starting to pit or something of that nature.