Diesel Fuel Injection System Help Desk

[soundman]

I noticed that there are bubbles in the intake hose, but after bleeding the air out it's gone, then when I parked the car for few hours again there is air. I already replace it before, I will replace again with a better transparent hose and will put 4 clamps in each hose. Dami naman clamp yan. One good clamp on each end should be okay. (OK, I will use only One good clamp both sides)

I'll check the copper gasket, maybe it's sucking more air instead of fuel. Also, check the flat sealing surface of the banjo fitting.

I will correct the air suction before doing the injector calibration. Good.

( I told the mechanic to adjust the timing and try to advance a little bit but he dont want to, for what reason I do not know. He probably doesn't know how to properly time the injection pump, and/or he doesn't have the necessary tool/s. (maybe)

I will rotate the injector and make it advance firing a little bit. The correct procedure is to time the pump according to specs, as this will assure you of optimal power and fuel economy. Mahal na diesel, di bah? (yes your right, let me have it adjusted by a reliable mechanic)

Engine does smoke but not so dark, it's more like grayish but not white. Does engine smoke at low idle, or during acceleration only?

During idle very small/less smoke, if I accelerate then starts to smoke dark gray but after a while in continuos high acceleration the smoke becomes less.

TNXS

[Dieseldude]

During idle very small/less smoke, if I accelerate then starts to smoke dark gray but after a while in continuos high acceleration the smoke becomes less.

Diesels don't normally smoke at low idle. Check timimg.

Keep us posted.

Bye

[batosai]

Sir Dieseldude and 4JGtootsie,

Maraming salamat po... Ok na hatak ng bighorn ko na lessen na din ang smoke, pasensya na at ngyn lang ako nakapag post nag ka problema kasi pc ko.

Sir ot na, share ko lang naging problema ko sa bighorn ko. Lately kasi naging mahina ang acceleration at masyadong maitim ang usok especially sa sudden acceleration. Ang problem lang pala is air filter buti na lang dito ko nag pa check up sa mga kaibigan natin sa tsikot, baka kung sa iba ko nag pa check e recomend nila agad for calibration at perahan lang ako.
Sa mga balak mag pa calibrate dyan dito na kayo sa experto at hind manloloko.., Just look for Jake or Budoy hehe.

Maraming salamat po ulit!!!

[bruswayne]

ask ko lang,out of warranty na innova ko,i think my unit needs replacement on fuel pump (kaso out of warranty nga) experince choking na,where ba any recommedation for my pump to be check?thanks

[4JGtootsie]

Kung D4D yan sir just bring at Central Diesel sa Quezon Ave beside Capitol Medical, we have serviced Innova and Hi lux with similar problems. Look for Jake or Ramon 4113711 to 13

[promdiboy]

sir dieseldude, good day, I had my pajero serviced at central diesel clinic a few years back and its still doing great, pag may question sa pajero gen 2.5 calibration parati kong suggest to go to your shop, sip sip ba? I was wondering if you could shed some light sa problems ng 4m40 injection pump namin, usually we experience hard starting sa umaga lang then papalya siya, then restart 3 to 4 times uli ganun parin, but pag uminit na wala na kaming problems, no balck smoke, power is still very good and fuel economy is still normal, naglalaro kasi sa mind ng owners bakit calibration agad ang solution despite pag uminit siya ok naman na, can you please help shed some light kung aling parts ang nagcacause ng hardstaring and namamatayan sa umaga? and what can we do to prevent this? or is it just normal wear and tear. sa akin kasi 70k palang nagloko na, and so far ive done 35k na, so malapit na uli ako bumalik sa inyo. normal wear and tear lang ba to? kasi yung 4d56 na l300 delivery namin has already done 200k and hindi pa napapacalibrate. no problems pa so far.

question 2 sir, meron ba kinalaman ang calibration sa shifting ng auto tranny? may isang member (larshell) kasi na may delayed shifting na nangayari after niya pacalibrate. can you confirm this sir? post ko yung reply niyo sir sa gen 2.5 threads, or even better baka pwede niyo dalawin yung thread namin, thank you sir, and more customers to central diesel clinic,

[Dieseldude]

sir dieseldude, good day, I had my pajero serviced at central diesel clinic a few years back and its still doing great, pag may question sa pajero gen 2.5 calibration parati kong suggest to go to your shop, sip sip ba? I was wondering if you could shed some light sa problems ng 4m40 injection pump namin, usually we experience hard starting sa umaga lang then papalya siya, then restart 3 to 4 times uli ganun parin, but pag uminit na wala na kaming problems, no balck smoke, power is still very good and fuel economy is still normal, naglalaro kasi sa mind ng owners bakit calibration agad ang solution despite pag uminit siya ok naman na, can you please help shed some light kung aling parts ang nagcacause ng hardstaring and namamatayan sa umaga? and what can we do to prevent this? or is it just normal wear and tear. This is a common problem on 4M40 injection pumps. Failure is in the drive shaft, drive shaft bushings, and oil seal, allowing air to enter the pump when engine is shut down for a few hours. Pump has to be repaired and calibrated, no other way.

question 2 sir, meron ba kinalaman ang calibration sa shifting ng auto tranny? Yes.

may isang member (larshell) kasi na may delayed shifting na nangayari after niya pacalibrate. can you confirm this sir? post ko yung reply niyo sir sa gen 2.5 threads, or even better baka pwede niyo dalawin yung thread namin, thank you sir, and more customers to central diesel clinic, Mounted on top of the injection pump's control lever is a throttle potentiometer. This is a black 3 wire variable resistor which controls transmission shift point. Electronic adjustment is performed while the injection pump is on the test stand.


Bye, Godbless,


Dieseldude

[promdiboy]

thank you sir diesel dude for the quick reply, I copied your answer sa kabilang thread, does this mean we can opt not to replace the nozzle tips when this happens? since the problem is the driveshaft, sorrry sir newbie sa injection pump, what causes driveshaft failure? sa diesel qulaity ba or the way we drive?

[Dieseldude]

Thank you sir diesel dude for the quick reply, I copied your answer sa kabilang thread, does this mean we can opt not to replace the nozzle tips when this happens? Yes. Morning hard start is most often not related to nozzle wear.

Since the problem is the driveshaft, sorrry sir newbie sa injection pump, what causes driveshaft failure? I consider this as normal wear. We do an improvement on this area everytime this pump type comes in for service; and we have been very successful in improving the pump's service life.

Sa diesel qulaity ba or the way we drive? No and niether....

[promdiboy]

thank you sir dieseldude for taking time to answer my question, its good to know na improved version na pala pag nagpacalibrate sa inyo, I hope mas tumagal naman yung injection pump ko ngayon,

[bruswayne]

Kung D4D yan sir just bring at Central Diesel sa Quezon Ave beside Capitol Medical, we have serviced Innova and Hi lux with similar problems. Look for Jake or Ramon 4113711 to 13

thanks 4 the info 4jgtootsie,il drop by na lang dun n have it check.

[artlynn]

Sir!
Hi!
Matagal tagal na ring implemnmented ang biofuel act...kaya, i supposed, halos lahat especially the big 3 eh 1% blend na diesel fuel nila.
last time kasi, nag add kami ng additive na BioActive, 1L into a 1 full tank.
Nawala ang black smoke pero nagkaroon ng manipis na white smoke....
ang ginawa namin eh ng mangalahati na ang fuel tank, nag full tank kami ulit ng diesel without adding bioactive, ang resulta, nawala ang manipis na white smoke....
Ano sa palagay nyo sir ang nangyari? Napasama kaya ang pag add namin ng 1L na bioactive?
Isuzu sportivo 2007 nga po pala sasakyan namin.
Okay lang ba maglagay pa ng additive? ang sabi ko kasi kay esmi eh mag add na lang ng 500mL na bioactive sa 1 fulltank of diesel....
Please email me at artlynn_pagatpatan*yahoo.com kung pwede?
Thanks.
Art

[Dieseldude]

Sir!
Hi!
Matagal tagal na ring implemnmented ang biofuel act...kaya, i suppose, halos lahat especially the big 3 eh 1% blend na diesel fuel nila.
last time kasi, nag add kami ng additive na BioActive, 1L into a 1 full tank.
Nawala ang black smoke pero nagkaroon ng manipis na white smoke....
ang ginawa namin eh ng mangalahati na ang fuel tank, nag full tank kami ulit ng diesel without adding bioactive, ang resulta, nawala ang manipis na white smoke....
Ano sa palagay nyo sir ang nangyari? Hindi ko alam dahil hindi ko pa na try ang Bioactive. Saan ba nabibili yan, at magkano per liter?

Napasama kaya ang pag add namin ng 1L na bioactive? Hindi naman.
Isuzu sportivo 2007 nga po pala sasakyan namin. Ok ang makina ng Sportivo. Matibay din ang diesel injection system nyan.

Okay lang ba maglagay pa ng additive? ang sabi ko kasi kay esmi eh mag add na lang ng 500mL na bioactive sa 1 fulltank of diesel....

Hindi ko inirerekomenda sayo ang pag gamit ng diesel fuel additive dahil:

1. Designed ang diesel engine natin umandar nang walang additive. 1 liter bawat full tank, magastos ito.
2. Hindi rin nag-rerecomend ang Isuzu or other engine manufacturers na gumamit tayo ng fuel additive.
3. Sa model ng sasakyan mo, normal ang slight black smoke sa arangkada.
4. Matibay ang design ng diesel injection system ng Sportive. Hindi ito nasisira sa biodiesel na nabibili sa legitimate gas stations.
5. Bili ka nalang ng original air filter, baka mabawasan ang black smoke, at tumipid pa consumo mo ng diesel.

Please email me at artlynn_pagatpatan*yahoo.com kung pwede? Dito nalang tayo sa public forum para dami ang pwede makinabang.
Thanks.
Art

You're welcome....

[artlynn]

Sir,
sa petron ako bumibili ng Bioactive na additive....
Kahit ang flying v ay may sariling additive.....ang noticieable lang eh mas okay ang diesel ng flying v, dahil proven ko na halos lesser ang usok compared to petron, kaya lang, pangit locations ng mga gas stations ng flying v...kadalasan eh mababa ang lugar at luma ang stations nila.
Kaya, baka, marumi ang diesel nila sa mga stations?????
Mas mura per liter ang bioactive compared to 1 liter of diesel.
Art

[artlynn]

Mas mahal pala sir ang 1L of bioactive kaysa 1L of Diesel.
Art

[artlynn]

ito sir website nila...
http://www.bioactiv.com.ph/
Bale approved fuel enhancer sya....
Pinatataas ko lang %blend ng biodiesel na kinakarga ko kaya naglalagay ako ng additive....
Thanks for the reply.
Pag balik ko sa pinas, mga October eh magpa check ako ng usok or compression test. Meron ba sa Isuzu Quezon Ave? or sa Inyo?
Mga magkano kaya yun sir?
Art

[Dieseldude]

ito sir website nila...
http://www.bioactiv.com.ph/
Bale approved fuel enhancer sya.... Salamat sa information. Binisita ko na ang Bioactiv website. Mukhang ok naman ang produkto nila.
Pinatataas ko lang %blend ng biodiesel na kinakarga ko kaya naglalagay ako ng additive....
Thanks for the reply.
Pag balik ko sa pinas, mga October eh magpa check ako ng usok or compression test. Meron ba sa Isuzu Quezon Ave? or sa Inyo?
Mga magkano kaya yun sir? Wag mo na muna isipin ang compression test dahil model 2007 ang Sportivo mo. Batang bata pa yan. Siguradong maayos ang compression pressures mo. Btw, nasaan ka ba?

Art

[andrewbugs]

Dieseldude, tanong ko lang po. I had my 4 nozzles replaced and installed by Betan-Makati last month (my engine is 4M40) to correct the black smoke. After the installation, wala na ang smoke. However, ngayon mahirap magstart pajero ko kahit maiinit na ang engine (so i think not the glow plugs ang reason). What i did, I stepped on the gas pedal (maximum to the floor), with this, magstart na siya after few revolution of the starter motor (around 2-3 seconds). what do you think is the problem?

[alainroyce]

Dieseldude * what was the common trouble of CRdi engine?

[kev09]

Dieseldude, I have toyota revo with a 2LII-T in it..Just wanna know if its possible to convert a 2l-t into a 2l-te?? or swap nlng sa 2l-te?