Bukh 10 engine

Bukh are traditional marine diesel engines. Heavy engines that are dependable. Built to last and spare parts always available, but not as cheap as some. Provided they have been regularly serviced then should keep running for decades.

They are used extensively in ship's lifeboats, so many appear secondhand with about 100 hours engine run time.
 
Concerto said:
Bukh are traditional marine diesel engines. Heavy engines that are dependable. Built to last and spare parts always available, but not as cheap as some. Provided they have been regularly serviced then should keep running for decades.

They are used extensively in ship's lifeboats, so many appear secondhand with about 100 hours engine run time.
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Thanks
 
Concerto said:
Bukh are traditional marine diesel engines. Heavy engines that are dependable. Built to last and spare parts always available, but not as cheap as some. Provided they have been regularly serviced then should keep running for decades.

They are used extensively in ship's lifeboats, so many appear secondhand with about 100 hours engine run time.
Click to expand...

They are solid, robust, fairly simple engines, specifically designed for marine use. Most marine engineers will be very familiar with them.

If it start easily, runs nicely without excessive smoke (they do tend to steam when hot), and looks reasonably tidy/cared for, it is probably OK.

Unlike the DV24 and DV36 (with which they share some parts), DV10s and the twin cylinder version DV20 are no longer in production, and have been out of production so long (since the early/mid 80s?) that I doubt that you will find them ex-lifeboats now (unlike the DV24 and DV36, which are still being installed in lifeboats, as well as being taken out of them when they are decommissioned). I believe the DV24, despite being a different engine to the DV20, is a 'drop in' replacement for the DV20, but this has a longer footprint than the DV10, so additional longitudinal space and a different prop would be required to substitute one for a DV10.

Most regular parts are readily available (and owners manual, parts list and the (rather cryptic) workshop manual readily available online), but things like cylinder heads are not and have to be sourced second hand. Bukh spares are expensive (though the same is true of some other makes), but parts 'bought in' rather than actually manufactured by Bukh can be found cheaper via other sources.

The DV10 and DV20 were produced in large numbers over the years, so there is a lot of experience of them out there. You will find information/help about them on here, and other boating forums such as Canal World, and there is a very active Bukh Owners Facebook Page (though the nature of it is that people go on there when they are having problems, and you don't see the thousands that are working away satisfactorily).

Like any older engine, it tends to be the peripherals that cause most of the problems. (They can be, and sometimes are, completely rebuilt in the event of major problems, but typically the cost of this will be prohibitive, and replacement preferred.) A particular common issue is the 'poker' through which cooling seawater enters the front of the engine scaling up and reducing flow (relatively easily resolved). Another is false faint alarms from the simple electronic circuit that connect the various sensors and indicator lights to a single audible alarm. It is important that any leakage from worn seals at the back of the seawater pump (easily checked, but also easily ignored) is promptly addressed, otherwise water can eventually enter the engine and its oil with potentially severe consequences.
 
LittleSister said:
They are solid, robust, fairly simple engines, specifically designed for marine use. Most marine engineers will be very familiar with them.

If it start easily, runs nicely without excessive smoke (they do tend to steam when hot), and looks reasonably tidy/cared for, it is probably OK.

Unlike the DV24 and DV36 (with which they share some parts), DV10s and the twin cylinder version DV20 are no longer in production, and have been out of production so long (since the early/mid 80s?) that I doubt that you will find them ex-lifeboats now (unlike the DV24 and DV36, which are still being installed in lifeboats, as well as being taken out of them when they are decommissioned). I believe the DV24, despite being a different engine to the DV20, is a 'drop in' replacement for the DV20, but this has a longer footprint than the DV10, so additional longitudinal space and a different prop would be required to substitute one for a DV10.

Most regular parts are readily available (and owners manual, parts list and the (rather cryptic) workshop manual readily available online), but things like cylinder heads are not and have to be sourced second hand. Bukh spares are expensive (though the same is true of some other makes), but parts 'bought in' rather than actually manufactured by Bukh can be found cheaper via other sources.

The DV10 and DV20 were produced in large numbers over the years, so there is a lot of experience of them out there. You will find information/help about them on here, and other boating forums such as Canal World, and there is a very active Bukh Owners Facebook Page (though the nature of it is that people go on there when they are having problems, and you don't see the thousands that are working away satisfactorily).

Like any older engine, it tends to be the peripherals that cause most of the problems. (They can be, and sometimes are, completely rebuilt in the event of major problems, but typically the cost of this will be prohibitive, and replacement preferred.) A particular common issue is the 'poker' through which cooling seawater enters the front of the engine scaling up and reducing flow (relatively easily resolved). Another is false faint alarms from the simple electronic circuit that connect the various sensors and indicator lights to a single audible alarm. It is important that any leakage from worn seals at the back of the seawater pump (easily checked, but also easily ignored) is promptly addressed, otherwise water can eventually enter the engine and its oil with potentially severe consequences.
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Thanks,as usual engine are a mystery but made by humans so there must be a answer when they err stop
 
Poignard said:
Another BUKH 10 consumable is the exhaust elbow.

They aren't cheap.

If you're considering buying a boat with DV10, examine the elbow for cracks.
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£170 for the Bukh DV10 part, or £180 for a 'pattern' stainless one. Not a reason not to buy a boat if that's all that's wrong with the engine.

(Mind you, the one for my DV36 is about £500! :oops: )
 
LittleSister said:
£170 for the Bukh DV10 part, or £180 for a 'pattern' stainless one. Not a reason not to buy a boat if that's all that's wrong with the engine.

(Mind you, the one for my DV36 is about £500! :oops: )
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Absolutely not a reason not to buy the boat.

But something to be replaced ASAP.

Soon after I bought my boat the exhaust elbow broke completely coming into Portsmouth. I had to keep going until I reached my mooring at Hardway, by which time there was a filthy mess in the engine compartment for me to clean up.
 
Poignard said:
Absolutely not a reason not to buy the boat.

But something to be replaced ASAP.

Soon after I bought my boat the exhaust elbow broke completely coming into Portsmouth. I had to keep going until I reached my mooring at Hardway, by which time there was a filthy mess in the engine compartment for me to clean up.
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I had a similar experience but going into Plymouth just outside the breakwater, the solution was a Tesco plastic bag and copious amounts of Gaffer tape, it lasted so well I was thinking about it as a permanent solution. 😁
 
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