Diesel Fuel Injection System Help Desk

[Dieseldude]

I would like to help! Throw in your questions regarding problems with your fuel systems (injection pumps/ injectors/ turbochargers/ electronic systems/ etc.....) Then you guys take it from there...................if I can be of help, why not!

[rion]

Dieseldude, how will I know if a Turbo is Watercooled or Oilcooled? and can one install a watercooled turbo with an oilcooler? and how?

[Dieseldude]

Hi Rion,

All turbos are cooled and lubricated by the engine's lube oil. Aside from oil supply and drain lines, a water cooled turbo will have coolant supply and drain lines as well. Plumbing will often be attached to the center housing, near the oil lines. On high load applications, coolant is sometimes plumbed to the turbine housing, and the turbine housing will have the necessary fittings.

You don't have to install an oil cooler.

An air intercooler may help. This is located between the turbo's air discharge duct and the engine's air intake manifold.

I hope I have been of help to you. Good luck.

[Boy Torotot]

Hi Dieseldude,

I'll repost a hanging question i have on the other thread regarding preventing fuel injection problem, specific on the Patrol GU:

So any other tips to help avoid this fuel injection problem in the future? Here are some of the suggestions deduced from above posts:

1) regularly change fuel filters
2) fill up only in stations known for their clean fuel
3) do not install any fuel saving device
4) sell your patrol

Anything else? How about using Biodiesel, could this cause fuel injection problem?

[Dieseldude]

Hi Boy Torotot,

Check out my comments posted under the "Home-made Biodiesel"thread which I posted last September 24.

Your suggestions are OK, but I would like to add that when you replace your Fuel filters go for the Original (critical for this new models) not the replacement filters.. I am not selling for Nissan, but I have seen quite a number of problems when a replacement brand is used. Why scrimp on the cost when you do not spend this kind of money everyday for your vehicle!

[Boy Torotot]

Thanks sir! Will check your comments right away.

I've been using the original fuel filters, and having it replace regularly at the casa, since i got my ride. So they should be using original filters and not replacements.

[rion]

All turbos are cooled and lubricated by the engine's lube oil.

You don't have to install an oil cooler.

does it mean that my turbo is both Watercooled and Aircooled. may IN-OUT kasi yung water and oil paths sa Turbo...

and does it need a turbo timer?

An air intercooler may help. This is located between the turbo's air discharge duct and the engine's air intake manifold.

thanks, may spare toyota 3c-tdi engine kasi kami, baka puwede ilagay sa aming 3c-td. hehe..

[OTEP]

Oil is primarily for lubrication, water is primarily for cooling.

[rion]

Oil is primarily for lubrication, water is primarily for cooling.

I'm still a bit confused sir Otep, other peeps differentiate the two... is there a Watercooled Turbo only and an Oilcooled only?

[Dieseldude]

does it mean that my turbo is both Watercooled and Aircooled. may IN-OUT kasi yung water and oil paths sa Turbo...
If your turbo has oil and coolant plumbing, it is oil and water cooled. Oil primarily lubricates the turbo. Oil has a secondary function of cooling the turbo as heat energy is transferred to the oil, and further dissipated to the engine. Water cooling is sometimes integrated into the turbo design if it is expected to be used on high hp engines (more hp = more fuel = more heat).

and does it need a turbo timer?
A turbo timer may help. However, if the original design doesn't have it, you don't really need it. So why spend more?



thanks, may spare toyota 3c-tdi engine kasi kami, baka puwede ilagay sa aming 3c-td. hehe..

Pwede rin if you want to try.

[Largo142]

Hi Dieseldude,

A year ago every time my speed reaches 60 kmph, I can already hear my turbo whistling. But now, even I have already reached 120-140 kph di ko na naririnig ung dati nya na tunog. Is it because sira ung turbo? or may kailangan ako na check?

please advise.

Thanks.

[jun_varias]

meron akong toyota fx with 2c engine..gusto ko palitan. saan ba tayo makakuha ng bago engine.

[the_DRIVER]

sir ask ko lng po. ngpcheck po aq ng injection pump ko kc mlkas n s diesel (TD27 turbo engine) tpus ang sbi ng ng_aayos mlki n dw butas ng nozzle ng injection pump ko kya dpat ng plitan., sir dun po b tlaga un?! if ever un nga problem san po b ko pedemkbili nun. TIA & GOD BLESS

[akosijepoii]

sir dieseldude pa help naman sa patrol 2001 ko,may problem is mejo nag bubuga sya ng grayish and black smoke pag nadidiinan ko yung accelerator,nway bago ko makuha to sa previous owner bago calibrate injection pump nya and bgo yung turbo may casa records..ska every 5k nag chchange oil po ako and bago palit din airfilter,2pcs fuel filter and pati fuel pump bago na din..wala naman po prob sa andar ng engine matining din po yung andar nya kaya i doubt na maf sensor ang problem nag aad na din ako ng 2t since nababasa ko po dito sa forum na maganda mag add ng 2t sa krudo...ang problem ko lang mejo nag bubuga lang sya ng black smoko pag mejo nadidiinan ska lalo na pag akyatan parati po kse ako nakatingin sa sidemirror kaya nakikita ko po..sana po matulungan nyo po ako salamat po in advanced...manual po pala patrol ko with zd30 engine wala nga pong ka oil leaks oil leaks eh...

[mackie08gt]

Hi..Question lang po..ano magandang brand ng Synthetic Oil for Diesel Engine? regular naman yung change oil namin..pero i want to try other brands..baka mas gumanda yung performance..or kung may combination okay din..lagi na lang kasi sa Toyota..hehe TIA!

[van1029]

my 1997 Kia Sportage RF TDI 4x4 had a very poor FC. Computed 7km/liter (city driving) with AC ON, driving in a very light traffic.

Injectors was calibrated twice this year
Injection pump is new (1 year old)
Fuel Lifters is new (1 mo old)
Air Filter is new (2 weeks old)
Engine Oil is new (10w-30 wid X1R)
Oil Filter is new (4 months old)

its suppose to be driving at 12km/liter malayo masyado sa 7km/liter.

1.) anu at saan kaya ang may problema? bakit lakas uminom ng sportage ko?

2.) ipa recalibrate ko ulit? kxi nakakaduda ang 2 calibrations

3.) totoo kaya baka butas na masyado injectors neto? (220k nsa odometer)

Salamat sa inyong advice.

[spacie]

sir pwede magtanong? ask ko nga po kung may idea kayo sa delica spacegear 4d56 engine automatic tranny subic?

parang sinisinok, nawawalan ng hatak pag tinapakan ko gas pero pag gianalit ko ng husto deretso naman takbo nya
pero pag normal lang bibilis babagal parang kinakapos ng hininga

nagpalit na po ako ng fuel filter pero replacement lang ganon parin nakakabitin pag oovertake

maraming salamat po

[seph.patrick]

Hi Sir,

Is there any truth in putting kerosene in your diesel fuel tank to clean your fuel system?

Thanks!

[lunapomin]

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[neil.corrigan12]

we should know the basics of the IC engines.
1. Spark ignition
2. Compression ignition
In spark ignition engines during compression stroke the petrol air mixture is compresed at 1: 8 ratio the temperature at the end of the stroke is only 50-60 centigrade. Hence to burn the petrol mixture a spark plug is used to ignite the fuel mixture.
But in compression ignition engines during compression stroke air is compressed to 1:17 ratio that means 17 parts of the air is compressed to 1 part and at the end of the compression stroke the temperature of the air is more than 200 centigrade. At this stage diesel fuel injected on the hot charge hence a power stroke is generated.