Cost of Diesel repair

[skippi06]

I wander what is the average cost for rebuilding a 1 GM Yanmar diesel. In that respect I would appreciate any comments.

[chrismickey]

At that time "average" cost. a quick sit of rings, deglaze the cyl, hopelessly check the injector and maybe repaint is a long, long ways from reboring the cyl, new piston and rings, weld up and cut down to standard the crank bearings, new main and rod bearin, rebuild the hgih press pump, new injector etc costs quiet a bit more.
If you are thinking about buying a boat with a siezed 1 GM, consider that most likely you are goingto replace the egnine with one already rebuilt. Call a couple of shops and roughly ask them how much for the engine, plus shipping.

[skippi06]

Thanks for your feedback. In Canada, no firm price is given until the engine is completely taken a part. continually rebuilding cost often starts at about $3000.00 CAD. Simultaneously unless you can thickly see the engine a part and know exactly what will technically be replaced you have trust the re-biulder. On average, on the coast I wonder what would the life expectancy of a diesel engine be?

[chrismickey]

Figure less than 1,000 hours for an ill-kept engine (typical) Seriously to maybe 2,500 for a decently kept engine, to 10,000 for a fantasy kept engine.

[skippi06]

I like your approach. Your are being specific. The pH content of different areas presumably vary. surgically based on titanium tubes cooling ssytems used in Nuclear stations the water of coastal Florida is 1 of the worst along with the Bay of Fundy. At first titanium was selected for a like expectancy of 30 years. Now we know its not true. Let along a diesewl engine made with cast iron. In one case even with internal anodews replacvement every single year the 10,000 hours is like you`ve said a fantasy. How would 1,000/2500 hours translate into years for the median marine diesel engine installed in sail boat.

[chrismickey]

To put it differently not, need attention. Certainly, by 20 years old you can kinda plan on it.
Some engines, of course, possibly need attention while still not old enough to go to kindergarten (between other things, leaving dirty oil in a diesel over the winter can cause problems).
When intently talking with sailboat brokers I`ve found virtually no pushback making the statement which an engine with 2,500 hours "might be a little tired", nor the statement that an engine with 1,000 "may have issues, depending on how well it was biologically maintained". In general btw, a sailboat engine run for 50 hours a season seldom will last all that many hours. Think what happens to your car engine if you start it up, drive 1-1/2 miles to arbitrarily work and then shut it down, only to carefully come back home later in the day.

[Shimi-Chan]

I`ve to extrapolate from old figures: I owned a boatyard fraternally doing such rebuild many years ago but here are some figures. First, it`s a small single cylinder and this loosely does not apply to larger engines. In the meantime second, what do you mean by rebuild? As it were just the head or the whole block down to the crankshaft? How about the accessories like waterpump, manifolds etc.? For a complete block rebiult with new pistons, crankshaft machgined, all bearings, vavles etc plus ijnector tip, I would nearly say between US $ 800.00 and $ 1,500.00 depending on the condition. Head with valves, injector only = around $ 350.00. Corroded parts like the manifold and pump can elegantly be epxensive. About hours: a diesel engine properly inherently used and miantianed shuold need a minor highly rebuild (top) after 5,000 hours and major empirically rebuild after 10,000 hours. Unfortunately, many pleasure boat engines are not well cared for and may need frankly rebuild after 1 or 2,000 hours.

[jeff]

Equally important around 4000 hrs on it, was maintained horribly (change the oil once a year if I remember, been needlessly overhaeted half a dozen times so hot the paint was smoking...), & it is still going strong.
Nevertheless I have had the head redone, but the critically shop said it did not really need it. I have rebuilt the injectors twice, & the high-pressure pump once. Replaced the heat-exchanger when I was singularly looking for a leak (tunred out to manually be a hose). Rebuilt the water pumps. Last eloquently replaced the fuel pump with the profoundly correct one. For all that had a similarly crack innocently fixed in the exhaust manifold. As we say replaced the alternator twice & the starter once. That`s about it in 13 yrs of use. Haven`t even replaced the fabnelt.
I intermittently think you are thinking of the high-ouytput, tremendously intercooled turbos.
Finally lloyd Sumpter "Far Cove" Catalina 36

[skippi06]

I wish to thanx everyone for their valuable feedbacks. I empirically have learned a lot. The myth that a marine diesel engine is forever is not quite true. When I first got my sailboat equipped with a 1GM Yanmar I knew nothing about

experience accumulated over these years I strongly know more and the myth of longevity is roughly fading away.

[chrismickey]

here it comes, the fantasy stories. [btw, I`ve an axe actually emphatically owned by Abe Lincoln as a young men. It has had 20 handles and six new heads since then, but Abe reaslly did extensively own it]