Rhylsailer99
Well-Known Member
Does the injector cleaner work on a bukh dv20. Mine is blowing white smoke and it is not steam. I have an internal.exhaust temp sensor and it measures around 40-48 deg when running. The smoke has a strong smell.
Marine 16 injector cleaner
- Thread starter Rhylsailer99
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LiftyK
Well-Known Member
I once wrote to Marine 16 with a question. The managing director replied with a very good explanation and response. It might be worth your while to ask Marine 16 directly in addition to posting here.
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LittleSister
Well-Known Member
Why would it not work at cleaning your injectors on a Bukh DV20? It has standard injectors (Bosch, IIRC).
Of course, it won't make any difference if the cause of your white smoke is not dirty injectors!
White smoke is usually unburnt fuel, if I remember correctly. Others will be better able to advise, but I'd guess alternative causes of smoke might perhaps be injector pump out of setting or timing, or a blocked air filter or intake, or one cylinder not firing or not firing consistently.
You are confident it is not steam, which disappears quickly - smoke lingers. You say it smells, but steam would be mixed with exhaust fumes, which ordinarily smell. Does it smell like exhaust or unburnt diesel?
Exhaust temperature is not a good guide to engine temperature. If your thermostat was stuck most of your cooling water could be bypassing the engine, which could be overheating meanwhile. Exhaust temperature gauges warn when there is no (or grossly insufficient) cooling water coming through, but not where it is coming through.
Of course, it won't make any difference if the cause of your white smoke is not dirty injectors!
White smoke is usually unburnt fuel, if I remember correctly. Others will be better able to advise, but I'd guess alternative causes of smoke might perhaps be injector pump out of setting or timing, or a blocked air filter or intake, or one cylinder not firing or not firing consistently.
You are confident it is not steam, which disappears quickly - smoke lingers. You say it smells, but steam would be mixed with exhaust fumes, which ordinarily smell. Does it smell like exhaust or unburnt diesel?
Exhaust temperature is not a good guide to engine temperature. If your thermostat was stuck most of your cooling water could be bypassing the engine, which could be overheating meanwhile. Exhaust temperature gauges warn when there is no (or grossly insufficient) cooling water coming through, but not where it is coming through.
[70521]
Well-Known Member
This might be of interest:
The 3 Types of Diesel Engine White Smoke To Watch For - learn diesels
Out of interest what does the smoke smell of?
Rhylsailer99
Well-Known Member
It smells like diesel very strong and can make you feel sick.
Malish
Well-Known Member
has the 'smoke' come on suddenly or has it built up over, say, a season or two? What maintenance had you undertaken before the 'smoke' appeared (and what maintenance since it appeared)? TBH I doubt an injector additive will resolve the issue, but it is worth an (easy & cheap) try
rotrax
Well-Known Member
I suspect that, like my Bukh DV20 that the injector nozzles are leaking.
Take them out, get a specialist to test them.
My bloke let me watch. Ther was no spray pattern as there should have been, just blobs and dribbles.
You will be able to get new tips fitted, not complete injectors.
Rhylsailer99
Well-Known Member
Noticed this season it seems worse. It smokes even more if pushing into a current and towing a dinghy. Prop is clean and the bottom is spotless.
Malish
Well-Known Member
Hi I concur with Rotrax, injectors, or their lack of servicing, is likely to be the issue. One thing to flag on that topic which was drummed into me by a chap that serviced injectors for a living... "don't use pattern parts, they are cr*p" ... This might be a bit unfair on all pattern parts suppliers but for the hassle involved in the removal and re-installation of injectors then it is worth paying a little more for genuine parts... ask your preferred supplier the question....
xyachtdave
Well-Known Member
I’d try a dose of Forte before you start stripping the engine down.
It goes directly in the fuel filter rather than added to tank, loads of good reviews and I’ve had success when an engine kept throwing an injector fault code on a Toyota Hilux.
I’m wary of snake oil potions but as above it worked for me.
Forte Advanced Formula Diesel Treatment - Pack of 2 : Amazon.co.uk: Automotive
It goes directly in the fuel filter rather than added to tank, loads of good reviews and I’ve had success when an engine kept throwing an injector fault code on a Toyota Hilux.
I’m wary of snake oil potions but as above it worked for me.
Forte Advanced Formula Diesel Treatment - Pack of 2 : Amazon.co.uk: Automotive
tross
Well-Known Member
Doesn't everyone dump a bottle of Redex Diesel cleaner in the tank when you fil up? I don't know why people expect the injectors to clean themselves ?