F510 & F525 Cylinder Block – INSPECT AUTOMATIC COMPRESSION RELEASE (ACR)
1. Remove camshaft. (See Remove and Install Camshaft
in this group.)
2. Inspect automatic compression release (ACR) for
3. Inspect spring (A). Replace if worn or damaged.
4. Move weight(s) (B) by hand to check for proper operation. If tab is bent or weights do not move freely, replace camshaft.
5. Check that tab (C) sits slightly above cam lobe when weights are released. Tab should drop below cam when weights are operated.