The spring pressure over the check valve is simply enough to keep oil from draining back to the sump. Compared with Several other engines that function them at increased RPMs the 4A-GELU squirter is in frequent Procedure, aiding in cooling and lubrication. Your browser isn’t supported anymore. Update it to https://4ageengineforsale90997.ezblogz.com/58247918/toyota-4age-for-sale-fundamentals-explained