Hi I'm Sean
Yeah I put the 3 jaw puller on the inside and grab it by the 3 wings so to speak on the balancer. I turned the jaws both way and it wouldn't fit. Considering I was probably going to replace the crank instead of having it polished, replacing the front cover seal along with the factory balancer, I said **** it and just pulled the thing off. The heads RGR said he could repair without issue but I figured I would get a new set of heads and let him work in them since there isn't much meat on the Boss heads as is. I went out and got a set of 2015 heads and let him do his thing with them.Oil pressure, or the lack thereof. 5.0's are bad for blowing oil through the PCV system, which was horribly designed. Every 5.0L I've replaced has had a rod knock and fubar'd bearing on #7 , and they're bad for prematurely wearing out the #7 intake valve guide. They'll blow oil right out and you won't know it till its too late. Ford recommends a 7500 mile oil change interval...I tell my customers no more than 5000, and check it every 1K.
Ford20, your heads are done...those groves aren't repairable unless you want to risk using bronze bushings. Second, you may have damaged your crank pulley/balancer when you pulled it off using the outer ring. It's supposed to be removed with a three-jaw puller on the inside, close to the hub. You may have severed the bond between the outer ring and the rubber, which will either cause a vibration or out-of-balance condition, or separate while the engine is running and become a rotating missile.
If there's one mod you do to improve your next engine, install an oil separator in the PCV system.
I have my peterson oil can that will be going back on the car with -12AN PCV fittings as well. It was on the car when the engine gave up on me but I will probably open it up and clean it out first.