D2-40 500 hours service - injector pressure test

stuartwineberg

stuartwineberg

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This is listed under required items for 500 hours service. I understand this involves removing the injectors to test them. Does this come under the heading of leave well alone or is it important to do. The engine is running smoothly, doesn't smoke, starts first time

The other stuff I understand - replace coolant, clean heat exchanger, check tappets etc - definitely worth doing.
 
Where have you read this? I have a D1-30 and the D1/D2 Operator's Manual doesn't say anything about testing injectors at 500 hours - indeed 500 hours isn't an interval they use for anything. It doesn't mention cleaning the heat exchanger either. I wouldn't expect to disturb the injectors unless there was an obvious problem.
 
pvb said:
Where have you read this? I have a D1-30 and the D1/D2 Operator's Manual doesn't say anything about testing injectors at 500 hours - indeed 500 hours isn't an interval they use for anything. It doesn't mention cleaning the heat exchanger either. I wouldn't expect to disturb the injectors unless there was an obvious problem.
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Have a look in the user manual page 26 under maintenance schedule. There’s a list of stuff. This is listed under 500 hours or 2 years. Was also mentioned to me by an engineer. Pasted below. Not shown means they don’t tell you how to do it in the user manual.

Every 500 operating hours or at least once a year, included in Extended Protection
● D2-40. Engine oil. Replace ............................................................................. page 30
● D2-40. Oil filter. Replace ................................................................................ page 30
● Fuel filter. Replace ......................................................................................... page 40
● Fuel pre-filter. Replace ................................................................................... page 40
● Idling speed. Check ....................................................................................... page 29
● Seawater pump. Check impeller ..................................................................... page 35
● Vacuum valve. Cleaning ................................................................................ page 36
Least once a year, included in Extended Protection
● Foldingpropeller.Cleaning .............................................................................page49
● S-drive. Check rubber seal (hull/drive) ............................................................ page 51
Every 500 operating hours or at least once every two years
● Air Cleaner (ACL). Replace ............................................................................ page 29
● Coolant . Replace ........................................................................................... page 34
● Heat exchanger. Cleaning .............................................................................. page 34
Injectors. Test pressure ............................................................................. not shown Valve clearance. Adjustment ............................................................
 
My D2-40 has done around 1300 hours without testing the injectors & it’s not something I intend to do!
 
stuartwineberg said:
Have a look in the user manual page 26 under maintenance schedule. There’s a list of stuff. This is listed under 500 hours or 2 years.
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Not in my 2014 Operator's Manual, and not in the current 2019 Operator's Manual either, as VicS said. I reckon Volvo Penta no longer think these need doing.
 
stuartwineberg said:
This is listed under required items for 500 hours service. I understand this involves removing the injectors to test them. Does this come under the heading of leave well alone or is it important to do. The engine is running smoothly, doesn't smoke, starts first time

The other stuff I understand - replace coolant, clean heat exchanger, check tappets etc - definitely worth doing.
Click to expand...

Would leave injectors alone until about the 1500 to 2000 hrs mark, or if the engine has been left not used for an extended period of time.
 
I too have the same engine with 1400 hours on it and I've not thought the Injectors need testing. However there are two other things that I should apparently do and I wonder if anyone actually does it:

a) Valve clearance adjustment - does it really need doing every 5 years or so (engine actually 10yo, but only the last 3 in my ownership) I know the principle but how do I turn the engine over a small amount at a time to adjust the tappets. On my old Bukh with a flywheel it was easy.
b) Heat Exchanger cleaning. Should I be doing this now ? I don't think it's too difficult from what I have read.
 
Rafiki said:
I too have the same engine with 1400 hours on it and I've not thought the Injectors need testing. However there are two other things that I should apparently do and I wonder if anyone actually does it:

a) Valve clearance adjustment - does it really need doing every 5 years or so (engine actually 10yo, but only the last 3 in my ownership) I know the principle but how do I turn the engine over a small amount at a time to adjust the tappets. On my old Bukh with a flywheel it was easy.
b) Heat Exchanger cleaning. Should I be doing this now ? I don't think it's too difficult from what I have read.
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If it's running OK, I wouldn't touch it apart from routine oil/filter changes and visual inspections.
 
Rafiki said:
I too have the same engine with 1400 hours on it and I've not thought the Injectors need testing. However there are two other things that I should apparently do and I wonder if anyone actually does it:

a) Valve clearance adjustment - does it really need doing every 5 years or so (engine actually 10yo, but only the last 3 in my ownership) I know the principle but how do I turn the engine over a small amount at a time to adjust the tappets. On my old Bukh with a flywheel it was easy.
b) Heat Exchanger cleaning. Should I be doing this now ? I don't think it's too difficult from what I have read.
Click to expand...

For turning the engine over in small increments, i used a 1/2" ratchet and socket on the crank pulley. My D2-40 is now 10 years old with 1000hours on it. I checked the valve clearances last summer and they were all well within tolerance. Didn't need to adjust any of them. Worth a check though, for peace of mind, preventative maintenance etc. Just be aware that the rocket cover gasket from Volvo isn't cheap.

Heat exchanger clean is well worth it. Mine wasn't overheating but upon removal was amazed at how much crud, slime and weed/growth it had on it. Dunked it overnight in a bowl of Rydlyme and it cleaned it up as new. Simple to refit, not a difficult task. Again, nice bit of preventative maintenance to carry-out and not expensive to do properly either.
 
Would you have your car's injectors removed and tested after 15,000 miles? Thought not.

Just more stipidity from VP trying to fleece the "rich boat owner" who knows no better.

Unless of course it's a miss-print, and it should have been 5,000hrs, which might make more sense
 
Rafiki said:
I too have the same engine with 1400 hours on it and I've not thought the Injectors need testing. However there are two other things that I should apparently do and I wonder if anyone actually does it:

a) Valve clearance adjustment - does it really need doing every 5 years or so (engine actually 10yo, but only the last 3 in my ownership) I know the principle but how do I turn the engine over a small amount at a time to adjust the tappets. On my old Bukh with a flywheel it was easy.
b) Heat Exchanger cleaning. Should I be doing this now ? I don't think it's too difficult from what I have read.
Click to expand...

If the valve clearances have never been done from new I would do them as all the parts "bed in",when I checked mine
they required adjustment.
 
peteK said:
If the valve clearances have never been done from new I would do them as all the parts "bed in",when I checked mine
they required adjustment.
Click to expand...

Doing the tappets is an easy job on an OHV engine, and probably a good idea to do them after about 1,000hrs or so, becasue as stated above, they do bed in a bit. To turn the engine, stick a socket on the crank pulley nut.
 
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