Originally Posted by spartan10
Final update. BAD NEWS - not my imagination. I held the pump back because I thought the leak was fixed.
No way. Drove it a couple of days and the tank was empty.
Replaced the pump - no leaks - no problems - everthing is fixed. Seems there can be an intermittent leak with the pump for some reason. Probably the position it stops moving when it turns off.
It WAS the pump. Go figure.
That equates to my results. And while it does seem to correlate to a particular resting position for the pump (since the leak was intermittent), that's not the only thing, because that by itself still can't explain an external leak. Rather, there must also be a weakness in the casting or shell someplace that allows the fluid to get out. I kept my old one with the intention of pressurizing it to see if I could figure it out...and if I ever get around to doing so, I'll follow up.
I sourced the pump through rmeuropean.com as they had the best price on the Febi brand and I was ordering a few other things.