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Post by Deleted on Jun 16, 2020 13:48:35 GMT
Started the engine this morning and it took a good few turns, which seemed sluggish to kick in, once running it was chucking out white smoke for a few minutes, plus I noticed some oil spraying out the exhaust, not a great deal but just little splatters at high revs.
have stopped and started a few times through the day and it has been fine.
its a nanni engine.
any ideas?
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Post by TonyDunkley on Jun 16, 2020 14:18:40 GMT
Started the engine this morning and it took a good few turns, which seemed sluggish to kick in, once running it was chucking out white smoke for a few minutes, plus I noticed some oil spraying out the exhaust, not a great deal but just little splatters at high revs. have stopped and started a few times through the day and it has been fine. its a nanni engine. any ideas? Check whatever water traps and filters you have in the fuel line from tank to engine for sludge and water. |
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Post by peterboat on Jun 16, 2020 16:36:53 GMT
Does it have heater plugs? one or more may have failed causing the poor starting and then throwing out unburnt diesel
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Post by Deleted on Jun 16, 2020 17:49:36 GMT
Started the engine this morning and it took a good few turns, which seemed sluggish to kick in, once running it was chucking out white smoke for a few minutes, plus I noticed some oil spraying out the exhaust, not a great deal but just little splatters at high revs. have stopped and started a few times through the day and it has been fine. its a nanni engine. any ideas? Check whatever water traps and filters you have in the fuel line from tank to engine for sludge and water. Wil have a look in the morning.. |
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Post by Deleted on Jun 16, 2020 17:50:26 GMT
Does it have heater plugs? one or more may have failed causing the poor starting and then throwing out unburnt diesel Not sure it’s the glow plug, happened twice in 12 months, plus it was oil coming out the exhaust |
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Post by phil70 on Jun 16, 2020 18:16:18 GMT
Hmm, oil coming out of exhaust could be indicative of a failed or failing head gasket. Don't ask me how I know this
Phil
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Post by ianali on Jun 16, 2020 18:50:17 GMT
I’d check oil level and see how it looks. Drain off some diesel and inspect. If both these seem ok I’d give the engine a good old thrashing as soon as you can find a good run. I am often amazed what this can cure.
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Post by Deleted on Jun 16, 2020 19:37:46 GMT
Does it have heater plugs? one or more may have failed causing the poor starting and then throwing out unburnt diesel Not sure it’s the glow plug, happened twice in 12 months, plus it was oil coming out the exhaust Which model Nanni engine is it? Internet is amazing like that. You could type in "a 3 cylinder engine marinised by someone's grandmother having problems with oil in exhaust". It might come up with loads of hits. Like this forums.ybw.com/index.php?threads/proplems-with-new-nanni-deisel.206107/I agree with ianali a good loading will help work it out. |
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Post by TonyDunkley on Jun 17, 2020 4:16:46 GMT
Check whatever water traps and filters you have in the fuel line from tank to engine for sludge and water. Wil have a look in the morning.. It is important that any water traps, sedimenters, and filters in your engine's fuel system are checked for the presence of water and/or sludge BEFORE investigating any of the other suggested causes of yesterday's reluctant and (white) smokey starting, . . and before clocking up any more running hours. Burned out glowplugs, blown head gaskets, cracked heads and coked up combustion spaces/chambers can all lead to the starting characteristics your engine was exhibiting yesterday, but, . . . all are items ALREADY requiring replacement and/or attention. Water and sludge in a diesel engine's fuel system are, on the other hand, something that WILL rapidly cause otherwise AVOIDABLE, and expensive, damage to the ultra close tolerance internals of modern diesel injection pumps and injectors. In other words, a preventative approach to maintenance and fault tracing, . . as opposed to risking having to take the infinitely more expensive, C&RT style remedial option of repairing damage that could perhaps have been avoided in the first place ! |
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Post by JohnV on Jun 17, 2020 20:13:01 GMT
<abbr>oh pooh</abbr>
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Post by JohnV on Jun 17, 2020 20:13:53 GMT
I’d give the engine a good old thrashing as soon as you can find a good run. I am often amazed what this can cure. |
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Post by Deleted on Jun 17, 2020 20:54:57 GMT
Ran some fuel off from the filter bleed valve and it looked fine, nice and pink with no sludge or bad looking stuff..
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Post by TonyDunkley on Jun 17, 2020 23:05:16 GMT
Ran some fuel off from the filter bleed valve and it looked fine, nice and pink with no sludge or bad looking stuff.. If it was a bleed screw on the filter that you drew off the fuel sample from it would have been at or around the highest point on the filter body, and intended only for venting air out of the system. To check for any water or sludge present in the fuel being fed to the engine, you have to either draw fuel off from the lowest part of the fuel filter assembly, or if there is no drain plug or bung, take the sediment bowl (bottom part) off the filter assembly and visually check what's settled out in the bottom of it. Do you have a sedimenter, watertrap, or primary filter in the fuel line between the tank and the engine's own (secondary) filter ? Some photo's would be useful. How did yesterday's start compare with the hesitant start and white smoke on the day before ? |
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Post by Deleted on Jun 18, 2020 14:16:16 GMT
The tap is on the bottom of the first filter inline, no glass, will get a photo later if it stops raining enough..
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Post by bod on Jun 18, 2020 14:31:13 GMT
Ran some fuel off from the filter bleed valve and it looked fine, nice and pink with no sludge or bad looking stuff.. Baby pink, or translucent maroon colour? Water mixed with diesel sometimes goes a solid pink colour. Translucent (see through) colour is usually ok. Leave your sample to settle, then see if any water does seperate out, usually overnight will be enough.
Bod.
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