"Reginald P. Smithers III" wrote in message
. ..


At what point does it become more economical to replace a diesel versus a
rebuild?

Sorta depends on what's wrong with it. Many diesels have replaceable
cylinder sleeves, so when the engine "wears out" the sleeves can be
replaced ... often without removing the engine from the boat and at a
fraction of the cost of new engines.

Other engines ... the Cat 3208 V8 (I believe) do not have replaceable
sleeves and, although they are good engines, are considered by some to be
"throw aways" when the time comes for rebuilding.

The DD 67-1 series (non turbo) live forever with occasional bolt-on
component replacements. I have a friend with a pair in his old Hatteras.
They've had injectors replaced, cracked manifolds fixed, but they still chug
along with over 10,000 hours on them.

Eisboch