Hi All, I'm currently rebuilding a 225 turbo engine from the bottom up, engine code F4R 774. I am questioning what bolts need to be replaced, so far I have assumed the following: 1) big end bolts 2) connecting rod bolts 3) head bolts 4) flywheel bolts 5) crank pulley bolt? 6) anything else? Thanks Lee
Number 1 and 2 are the same thing Are you replacing the pistons and con rods ??? the con rods should have new bolts, if you are upgrading them. If not then replace the rod/big end bolts. Head bolts as they are stretch bolts, one use only. Flywheel bolts are not needed, just torque to the correct level but thread lock them. Crank pulley bolt also not required to be replaced.
Main crank bolts are good to use a couple of times I have added a list of torque settings to your other post
