I'm performing the 90K mile maintenance list on my truck. I just adjusted the valves today to the specs that are given in the Haynes manual. All 8 valves needed to be gapped a bit wider. Now when I just test drove it, I was surprised at the extra clatter. It's hard for me to know what's normal noise for this truck, as my other vehicle is a diesel, but it's a bit louder than it was before the adjustment. Can anyone tell me if this is probably normal, or something I should recheck?
Thanks, Jason