yeah I use that stuff all the time
I guess I will know the cause if ever I can see threw the top of my valve cover

 

The key is to wash it off after cleaning, don't let the crap sit on it forever. Other option is to take it to a shop that has a dip tank or ultrasonic cleaner.

Valve covers are a dime a dozen anyway...if it eats just get some others.

 

yeah but hot pink ceramic coating is expensive

 

There it was ..................... gone!!!

 

I'm not following. What is on there that the degreaser is not removing? I use a pressure washer (with due care). I only use a can of Gunk if there's a lot of old grease and oil which is usually somewhere aft of the oil pan or around the u-joints. I can see using degreaser in the bellhousing and transmission area, but there's usually nothing as high as the valve covers and intake manifold except for mud and dust.

 

^engine apart. cleaning crust from inside and out

 

yeah, its not easy haha.

ill try a few of the suggestions with before and after pictures.

 

I just did mine; used the E85 in a big disposable aluminum roasting pan and a cheap paint brush. About $5 total. Worked very well after soaking overnight.

 

I wouldn't use anything metal when washing with fuel, not even one item on the team. Plastic kitty litter tubs work great...MO. I keep my parts washer bucket sealed up in a plastic (Costco) laundry detergent bucket. The fuel over time will slowly evap, leaving just crud on the bottom you can dump in the garbage. Add a little fuel to it if you havent used it in 6 months...wash parts, seal cap, no smelly.

 

Not sure what the issue is with metal, so long as it's got a good ground; I'm not keeping it after the job, so I wanted something disposable.