Reply To: FD rod knock

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September 23, 2019 at 8:56 pm #183958
chris-p
Participant

    Unfortunately I have a pile of powerheads with thrown rods from previous owners that heard from a neighbour down the street that they could be run on 50:1.

    As we know, that is not the case.

    The FDs were not as bad as the 5.5s and 7.5s. When these were run lean, rods went straight through the block!

    As Frank stated, your problem is the small rod end bushing from lack of oil. Guaranteed. You can repair, just depends on what you want to spend on it.

    Sometimes unfortunately we have to make them parts motors. Depends on how bad the play is.