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P5 engine

Discussion in 'Members Projects' started by unstable load, Jul 12, 2017.

  1. unstable load

    unstable load Well-Known Member

    Calling all P5 people...
    I have been tasked to light overhaul and assemble a P5 6 pot engine and reunite it with it's gearbox and fit both to the original car....
    Now, having only ever seen a P5 at a distance, I am a bit short on information, so I am asking for the collective's help please.
    I need an engine manual in .pdf, or at least, the salient bits scanned, like torques and any specific "tricks" that can trap me which are in the knowledge database.
    Then, I managed to convince the owner to have the gearbox checked out for safety's sake as it's been in storage for ages, so I need to know the make and model, please. It's an auto, so I am going to assume Borg Warner, but not going to assume any further for fear of exposing the full depth of my lack of ken of this lovely vehicle.

    Harvey, is there anything specific to look at in a box that has stood for such a long time, beyond internal corrosion on steel bits and bands/clutches falling apart? I don't know if it has/had oil in during this time..

    Thanks in advance!
  2. harveyp6

    harveyp6 Well-Known Member

    If the box is being dismantled for inspection then all the seals should be replaced during reassembly, and they are the things that have problems after long periods of storage. Everything else should be inspected in the same way you would during a normal overhaul.

    If the box is cast iron then it's a DG box, if it's aluminium then it's a BW35.
  3. unstable load

    unstable load Well-Known Member

    Thank you, Harvey! Are seals and gaskets etc readily available for the DG if it is that one?

    I am going out to the owner's storage next week to locate the crank and sump which have been removed. The rest of the engine is still intact.
    The main and most of the big end shells are still in position, so I assume it was either an aborted start to a complete tear-down or it had a bottom end rumble that ended at that point. It has been dry stored at the owner's business, wrapped in plastic, so I am hoping the moisture has been kept largely at bay.
  4. harveyp6

    harveyp6 Well-Known Member

    They should be available but JPAT don't list them, so try Jaguar specialist suppliers, as lots of Jags had them fitted. There were different models though, so be sure to state that when ordering. Type should be on the data plate. IIRC they were along the lines of DG150, 200, 250.

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