The spring strain over the check valve is just enough to keep oil from draining again to the sump. As opposed to some other engines that run them at higher RPMs the 4A-GELU squirter is in continual Procedure, aiding in cooling and lubrication. Your browser isn’t supported any longer. Update https://angelodjjkv.isblog.net/considerations-to-know-about-4age-20v-itbs-43841525