IH: Oiling & Lubrication - Sub-04A

Routing lines with an oil cooler

78 XLH with oil cooler.
Photos by IronMick of the XLFORUM 1)

  1. The return line here is coming out of the front of the pump, going up to the cooler, then back along the frame.
  2. Then it goes thru the clip, and up behind the cam cover.
  3. The oil return from the pump (or in this case from the cooler) continues from the clip.
    Note, the return line keeps the feed line away from the chain.
    There are two zip ties on the return line;
    One at the bottom of the vertical frame member (about where that red cable is).
    This keeps the line back from the chain.
    Another on the squared frame member at the top to keep the line up.

Note: If you ever want to remove the solenoid you are somewhat screwed
You cannot get at those two little 1/4“ bolts because the lines are in the way.
And you must use a socket as there is not enough space between the bolt head and the sol to fit a wrench.
It is possible to get it out thru the hole in the bottom of the battery box, but it is much quicker to remove the battery box completely.
Which involves removing a whole inventory of parts.

  1. The vent starts at the cam cover fitting.
  2. This is the most difficult part of the whole thing.
    If these are not perfect you cannot get the starter motor in.
    Vent line on the bottom/front, oil line running under the starter drive housing with no kink! and the starter cable woven between the other two.
  3. The oil line and the starter cable go thru the big grommet.
    The the vent goes behind the oil tank mount.
    There is no extra length on the starter cable - it just fits right against the boss.
    NOTE: The vent line was pulled up away from the chain and with a zip tie around the oil tank mount.
  1. Here's the vent line left running up behind the battery box to the fitting on the oil tank.
  2. Vent line on the right running up past the solenoid.

Here's the lines running to the oil cooler.

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