Rope-seal; JD17B; JD17B-1; cutting up a spare crankshaft

[Kirbert (Author of the Book, former owner of an '83 XJ-S H.E.)]

Hey, I found it! Here, check out this thread:

Rear Main Seal - Engine Pull Down

Found this thread over on the UK site… JD17 Dimensions And borrowing a few images to keep here. Kudos to the posters there for this. [image] Notes: "My Zelenda J17B measures 3.1194 A crank I have measures 3.1252 so the tool undersizes the seal by .0058" So it appears that the space between the seal and the journal is apx 0.0029". Now, with that in mind, as the crank itself AND the seal expands with heat, contact likely ultimately occurs, as evidenced by the shiny areas on my journal af…