Diesel Flywheel Issue - Do I Need to Replace?

[Trav]

On a 4 cycle, 4 cyl it will have 2 places 180° apart, a 6 cylinder will have 3 places at every 120° of crankshaft rotation on an 8 cyl 4 places every 90° of crankshaft rotation. This is the reason the OP has major damage spots on the flywheel.

 

[Trav]

That’s sensible. My angle was as much coming from my initial concept that I’d rather wait to replace the flywheel until I had to remove the AT for other more significant service. But what you say makes sense. And I should do the guibos anyway…

Absolutely. Leaving it much longer may leave your stranded.