Another local trip on the FH, and another 8 miles on the clock. Unfortunately it's perfect record is blemished by a puddle in the yard when we arrive home. This continues as long as the engine runs and stops eventually after we earth the magneto. Starting the engine again the next day shows the puddle begin again in earnest:
Poking about underneath suggests that this oil is coming from the engine to filter oil line which loops around the bottom of the gearbox. It looks very much like the hose has split, perhaps because the line is bent beyond its minimum bend radius.
We'll have to remove the battery to improve access to this area and decide what to do. I used BSA A10 oil lines for both the return connections and I know that one of these was a little bit too long. I think what I'll do now is get some bespoke oil lines made up that fit properly.
Maybe I'll swap the FH and the Square Four around on the bench, clean the Square Four with the new sprayer and use that until the FH is fixed.
Incidentally, before the Square Four came off the bench I discovered that the oil filter was a bit looser than I would have liked. Perhaps that is responsible for some of the oily mess under the engine.
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