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It's a pretty decent cleaner, I've used it a few times (not on my LNF as it's so easy to remove the intake manifold and manually clean it) and had some reasonable results with it smoothing idle out a bit and helping with fuel mileage (slight increase nothing crazy).
I had tried with brushes, picks and solvents. It did a ok job a lot better then not doing anything. However we all know the best method is walnut blasting. Had this done a few thousand miles back. I will use this CRC maybe every other oil changes or even at each oil change to keep the valves clean.
I was most concerns with how to combat this issue on my future DI daily driver. Most of them are DI these days. Looks like this maybe the most cost-effective solution.
I have had good results with soaking the valves in solvent, brushing, and stuffing paper towels in the ports to absorb/wipe. I used carb cleaner last time, but I would recommend using something safer for seals, like GM Top Engine Cleaner.
I have had good results with soaking the valves in solvent, brushing, and stuffing paper towels in the ports to absorb/wipe. I used carb cleaner last time, but I would recommend using something safer for seals, like GM Top Engine Cleaner.
That was just about similar to what mine looks like before the cleaning. You did a better job of cleaning it then I did with mine. It was a PITA. I had Mr. Powell did the walnut blasting last year just for good measure.
It's a pretty decent cleaner, I've used it a few times (not on my LNF as it's so easy to remove the intake manifold and manually clean it) and had some reasonable results with it smoothing idle out a bit and helping with fuel mileage (slight increase nothing crazy).
Good deal.
My order of 3 cans just arrived today to start. I will make a my cleaning manifold and hookup 3 small lines directly into the intake manifold. Winter project.
That was just about similar to what mine looks like before the cleaning. You did a better job of cleaning it then I did with mine. It was a PITA. I had Mr. Powell did the walnut blasting last year just for good measure.
I was very conservative with solvent the first time I cleaned my intake valves, doing more brushing and picking, and they didn't look near as good as in that pic. Submerging in a pool of solvent and giving it a bit of time to soak (15-30 minutes) made a huge difference.
