Diesel Fuel Injection System Help Desk

[Dieseldude]

Sir DieselDude,

mine is innova 2013 D4D diesel engine. I would like to ask how many minutes for the turbo to cool down before shutting off the engine, city driving only....
You don't need to cool down before engine shutdown at city driving as the turbo does not reach temps that can cook oil in the turbo's internal oil drillings. High exhaust temps are reached only when an engine is heavily loaded. Cooked oil restricts oil flow within the turbo causing premature failure. Cool down is necessary for some engine applications like generator sets....... This is the reason why car manufacturers have never installed turbo timers on their engines.

BTW sir DD I used unioils euro4 diesel they said this is the cleanest diesel so far... is it true.... thanks.....
I don't have info on unioil specs...

[RevoSR]

Sir DieselDude,

mine is innova 2013 D4D diesel engine. I would like to ask how many minutes for the turbo to cool down before shutting off the engine, city driving only....
You don't need to cool down before engine shutdown at city driving as the turbo does not reach temps that can cook oil in the turbo's internal oil drillings. High exhaust temps are reached only when an engine is heavily loaded. Cooked oil restricts oil flow within the turbo causing premature failure. Cool down is necessary for some engine applications like generator sets....... This is the reason why car manufacturers have never installed turbo timers on their engines.

BTW sir DD I used unioils euro4 diesel they said this is the cleanest diesel so far... is it true.... thanks.....
I don't have info on unioil specs...

Thanks sir DD

[radiator3L]

Yes, Euro IV is the cleanest. But it is lacking in lubrication properties because of sulfur reduction. The whole reason to use the 2T OIL is because the diesel fuel now contains to low of a sulfur content which many of the older designed engines are designed to run on. The current Euro II is still not good for mechanical injection pumps.
2T OIL is an injector cleaner and using it every tank will keep your nozzles clean as well as your combustion chambers. It also reduces emissions so less carbon buildup in the combustion chambers and less soot.

[timo07]

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[nitram]

Good day SIr Jake, Need your help on how to fix fuel leak on my Montero Sport injector.Leak comes out from the top portion of valve where the injector located. Somebody check and advice me replace the injector seal.Please advice where can I get spare part for this.Do advice also if you can fix at your shop(Central).Many thanks.

[Dieseldude]

Good day SIr Jake, Need your help on how to fix fuel leak on my Montero Sport injector.Leak comes out from the top portion of valve where the injector located. Somebody check and advice me replace the injector seal.Please advice where can I get spare part for this.Do advice also if you can fix at your shop(Central).Many thanks.

This is not a common problem. Has anyone previously worked on your engine? Yes this can be repaired at Central. Gaskets and/or seals will have to be purchased from Mitsubishi....

[gearguru]

I just had my Pajero FM (2000 model) calibrated more than a month ago (replaced all injection tips plus the fuel pump assembly). Cold start up was gone and so did the black smoke emitting from the muffler. But it seems gas consumption is still quite high.

I always thought it was due to a faulty fuel gauge but after filling up my tank and computing my consumption, it seems I'm just doing 4-5km/l. I just had my tune up about 4 mos. ago and part of it was replacing the fuel, oil and air filters. Is it possible that these are already due for replacement?

Any other things you recommend I look into as well? Majority of those I researchedd are on the above.

Thanks!

[Dieseldude]

I just had my Pajero FM (2000 model) calibrated more than a month ago (replaced all injection tips plus the fuel pump assembly). Cold start up was gone and so did the black smoke emitting from the muffler. But it seems gas consumption is still quite high.

I always thought it was due to a faulty fuel gauge but after filling up my tank and computing my consumption, it seems I'm just doing 4-5km/l. I just had my tune up about 4 mos. ago and part of it was replacing the fuel, oil and air filters. Is it possible that these are already due for replacement?
Check / replace air filter...

Any other things you recommend I look into as well? If fuel system was properly calibrated, problem could be engine related. Check timing...

Majority of those I researched are on the above.

Thanks!

[gearguru]

Thanks for your inputs Sir! I believe calibration was dobe properly (c/o Betan) thus will work on the 2 things you mentioned

[cokezero]

Hi sir tanong ko lang kasi mausok yung pickup ko Isuzu LS 1994 (medyo white/bluish) lalo na pag nag cchange gear / paakyat yung daan

- When do i change my piston rings & cylinder head gaskets? ang sabi kasi ng mekaniko na nag calibrate ng makina ko (valve clearance & nozzle cleaning last 2011) kelangan ko daw magpalit nun.. kasi hindi pa rin nawala yung usok eh tapos may lumalabas na usok parang steam sa may dipstick

- Kelangan ko ba ipa cleaning yung Injection pump or ipa adjust?

- mahina humatak..

kaka change oil ko lang last month (oil filter & air filter changed)
*can you pm me how much singil ng shop niyo for valve clearance tska nozzle cleaning pati check up?

thanks sir!

[Dieseldude]

Hi sir tanong ko lang kasi mausok yung pickup ko Isuzu LS 1994 (medyo white/bluish) lalo na pag nag cchange gear / paakyat yung daan
Your car is 19 years old, with very high mileage probably.

- When do i change my piston rings & cylinder head gaskets?
If your car was well maintained and never experienced an overheat condition, it would probably need an overhaul every 250k kms. But please verify this with Isuzu.

ang sabi kasi ng mekaniko na nag calibrate ng makina ko (valve clearance & nozzle cleaning last 2011) kelangan ko daw magpalit nun.. kasi hindi pa rin nawala yung usok eh tapos may lumalabas na usok parang steam sa may dipstick. Possible yan dahil malakas na ang blowby ng engine.

- Kelangan ko ba ipa cleaning yung Injection pump or ipa adjust? - mahina humatak.. Walang magagawa ang cleaning or adjustment ng injection pump at injectors kung worn out na sila. The diesel injection system is as old as the car. Sa palagay ko, dapat ipa evaluate mo nang mabuti kung engine, or pump, or pareho sila ang dapat ma-overhaul.


kaka change oil ko lang last month (oil filter & air filter changed)
*can you pm me how much singil ng shop niyo for valve clearance tska nozzle cleaning pati check up?
Dalhin mo nalang sa Central for ocular inspection......no charge....

thanks sir

[cokezero]

Hi sir tanong ko lang kasi mausok yung pickup ko Isuzu LS 1994 (medyo white/bluish) lalo na pag nag cchange gear / paakyat yung daan
Your car is 19 years old, with very high mileage probably.

- When do i change my piston rings & cylinder head gaskets?
If your car was well maintained and never experienced an overheat condition, it would probably need an overhaul every 250k kms. But please verify this with Isuzu.

ang sabi kasi ng mekaniko na nag calibrate ng makina ko (valve clearance & nozzle cleaning last 2011) kelangan ko daw magpalit nun.. kasi hindi pa rin nawala yung usok eh tapos may lumalabas na usok parang steam sa may dipstick. Possible yan dahil malakas na ang blowby ng engine.

- Kelangan ko ba ipa cleaning yung Injection pump or ipa adjust? - mahina humatak.. Walang magagawa ang cleaning or adjustment ng injection pump at injectors kung worn out na sila. The diesel injection system is as old as the car. Sa palagay ko, dapat ipa evaluate mo nang mabuti kung engine, or pump, or pareho sila ang dapat ma-overhaul.


kaka change oil ko lang last month (oil filter & air filter changed)
*can you pm me how much singil ng shop niyo for valve clearance tska nozzle cleaning pati check up?
Dalhin mo nalang sa Central for ocular inspection......no charge....

thanks sir

maraming thank you sir!
odo reading at 230k na and yes hindi pa po nag ooverheat..

will try to visit your shop next week

[babynos01]

Sir Dieseldude goodmorning.
How do we know if it is the right time to have calibration?
Pwede pa PM din sir kung magkano ang usual rates for CRDi engine?

Secondly sir, biglang namatay yung car namin kaninang umaga while driving. Buti nalang mabagal takbo ko. Di-D A/T.
Mor\e or less sir, is this SCV failure? If SCV failure sir, pwede pa PM din how much kung papalitan ng bago ( may nabasa ako na meron daw aftermarket Denso na mas mahaba) including MUT initialization.

Thank you sir.

[Dieseldude]

Sir Dieseldude goodmorning.
How do we know if it is the right time to have calibration?
Usually, after a scan is performed and a fuel system fault is detected.

Pwede pa PM din sir kung magkano ang usual rates for CRDi engine?

Secondly sir, biglang namatay yung car namin kaninang umaga while driving. Buti nalang mabagal takbo ko. Di-D A/T.
Mor\e or less sir, is this SCV failure? Possible, but there may be other faults that could cause the same problem.

If SCV failure sir, pwede pa PM din how much kung papalitan ng bago ( may nabasa ako na meron daw aftermarket Denso na mas mahaba) including MUT initialization.

Thank you sir.

[cool_freeze]

Sir Dieseldude question po.
My ride is a Isuzu Crosswind XUV.
Napansin ko po na parang humihina na ang hatak nya and medyo lumalakas ang consumption ng diesel.
From 12Km/li eh naging 10Km/li nalang sha. tapos may time na nagpunta ako ng nasugbu batangas and parang hirap na sha akyatan.
Ano po kaya ang problema? kailangan na po bang mag pa calibrate? Hindi pa kasi po ito nakakalibrate ever since.
The past few months po eh nagka problema ako sa radiator though hindi naman ako inabutan na nag overheat lagi nga lang muntikang mag overheat.
everytime na nakikita ko na mataas na ang temperature ko eh inihihinto ko then lagay ng tubig sa radiator.

Is it part of the problem I am encountering?

Can you PM me po yung cost if ever magpapagawa po ako.

Salamat po.

[miked]

magandang umaga diesel dude!

mayroong isang sensor na suspetsa ko eh para sa tachometer sa injection pump ng pickup ko. 4d56turbo. kagaya nung nasa larawan
http://cdalejef.smugmug.com/Trucks/M...t1748115-L.jpg

ngayon po eh anong klase ng diesel tachometer ang dapat ikabit dito kung ito nga yung sensor? mayroon kasing tachometer na sa alternator ikinakabit eh.

specific model ng tachometer at brand na rin kung ito man ay inyong nagawa na. salamat

[Dieseldude]

Sir Dieseldude question po.
My ride is a Isuzu Crosswind XUV.
Napansin ko po na parang humihina na ang hatak nya and medyo lumalakas ang consumption ng diesel.
From 12Km/li eh naging 10Km/li nalang sha. tapos may time na nagpunta ako ng nasugbu batangas and parang hirap na sha akyatan.
Ano po kaya ang problema? kailangan na po bang mag pa calibrate? Hindi pa kasi po ito nakakalibrate ever since.
10kms/liter is normal. Sa palagay ko, hindi pa kelangan ang calibration. Check/replace air and fuel filters, and check or adjust accelerator cable. Injection pump throttle lever should touch maximum speed screw on injection pump when accelerator pedal is floored.

The past few months po eh nagka problema ako sa radiator though hindi naman ako inabutan na nag overheat lagi nga lang muntikang mag overheat.
everytime na nakikita ko na mataas na ang temperature ko eh inihihinto ko then lagay ng tubig sa radiator.
Is it part of the problem I am encountering?
I don't think so. Just remember that one serious overheat will can your engine. Your cooling system needs to be checked

Can you PM me po yung cost if ever magpapagawa po ako.

Salamat po.
You're welcome.

[Dieseldude]

magandang umaga diesel dude!

mayroong isang sensor na suspetsa ko eh para sa tachometer sa injection pump ng pickup ko. 4d56turbo. kagaya nung nasa larawan
http://cdalejef.smugmug.com/Trucks/M...t1748115-L.jpg
Tama ka, yan ang pump speed sensor. Pump turns at 1/2 engine speed.

ngayon po eh anong klase ng diesel tachometer ang dapat ikabit dito kung ito nga yung sensor?
Hindi ko alam ang specific brand ng tach. Pero sigurado ako na kelangan mo ng tach na pwede ma-set to read number of pulses per 1 engine rpm. You also have to know the number of gear teeth inside the injection pump. The pump speed sensor detects a pulse for each tooth passing it.

mayroon kasing tachometer na sa alternator ikinakabit eh.
Mas madali gamitin ito dahil wala ka nang kelangan adjustments.

specific model ng tachometer at brand na rin kung ito man ay inyong nagawa na.
Sorry, hindi namin ginagawa ito.

salamat
You're welcome.

[dh0n]

good day sir totoo po bang masisira ang engine and turbo pag may egr ka? kaya po ba bina blank ang egr para maiwasan po ito? confuse lang ako sira may nabasa kasi ako na masisira ang engine at turbo pag may egr ang sasakyan...and also tama ba na i adjust advance or delayed ang injection pump para maalis ang usok? di po ako bihasa sa sasakyan pero sa palagay ko mali ang ganitong paniniwala...please enlighten me naman sir...

[Dieseldude]

good day sir, totoo po bang masisira ang engine and turbo pag may egr ka? kaya po ba bina blank ang egr para maiwasan po ito? confuse lang ako sir, may nabasa kasi ako na masisira ang engine at turbo pag may egr ang sasakyan...
Hindi totoo yan. Wala pa akong nakitang engine na sinira ng egr. Ang tataas ng warranty ng mga casa sa brand new car sales; halos lahat nito ay meroon egr.

and also tama ba na i adjust advance or delayed ang injection pump para maalis ang usok? di po ako bihasa sa sasakyan pero sa palagay ko mali ang ganitong paniniwala...please enlighten me naman sir...
Dapat ilagay lang sa tamang timing ang engine. Kung minsan, nababawasan ang usok pag binago ang timing dahil dati na itong wala sa timing.