help me fix my knocking problem

Zero Signal said:

Wasn't that me Scott? Yeah nothing in the world ever would have fixed my pinging. I didn't find that out untill I bought the Tweecer and found the MAF just read too low. I richened the whole curve and fixed it completely. I won't ping in 110° degree weather with the A/C on It's a really expensive way to fix the problem but I didn't and still don't care, it's worth it.

Click to expand...

But of course! You are the only friend I have on here, besides JT (HISSIN50), and he wouldn't touch a tweecer if his life depended on it!!!

Well, that sucks that it didn't fix your pinging. After I removed my MAF sensor from the housing, & cleaned it throughly, my pinging was GONE!!! Or so I thought. It still comes back occasionally. But new heads will fix that problem, and very soon!!!

If you really don't want to remove the heads, you can try a cleaner.

I don't mean some crappy cleaner, I mean something that will really work. Albeit I don't know what will work 100%, but I am sure someone here will know.

I am thinking a heavy duty degreaser, or something like that. I don't think carb cleaner will do the trick. I have some stuff at work would do it. The crap it removes from RV's really amazes me.

But make it all day project. Meaning you will need to soak each combustion chamber in the "fluid". Remove all of the spark plugs, crank the #1 cylinder to TDC, then fill the CC with the fluid, and let it sit for an hour or so. Then siphon out the fluid, & replace the spark plug. Then go to the next cylinder in the firing order, and crank it to TDC, and repeat until all of the cylinders have been cleaned.

Note: If the fluid comes out reall black, this is a good sign. If it does, then you might want to repeat the process for each cylinder, until the fluid comes out the same color as it originally was.

An hour may be excessive, if the fluid does it's job in 5 minutes.

Also, you should consult someone that has done this before. Like at a shop that you trust. They might know a chemical that works and is safe for the iron heads and pistons.

Some chemicals will corrode metal, so you need to be careful. The degreaser at my work does, so it's not a practical example.

I will ask my friend if he still has the heads off of his old honda. They were covered in carbon, and would work great as a test mule. Heck, you could even ask for some heads at a junkyard that are carbon-ifed!!! That would probably be the best way. Soak each cc in different cleaners & monitor the progress over time so you can do it on your car.

Excessive, I know, but it sounds like you are completely disgusted with pinging, and will resort to anything. This is your only option, besides yanking the heads and taking a grinder to them.
Scott