Diesel Fuel Injection System Help Desk

[weisshorn]

nakow! ganon ba? greenish talaga siya nung isinalin namin sa black container... ginawa ko to noong nagiipitan ng diesel dito sa amin. kaya after karga sa L300 drain agad tapos salin sa container pagdating sa bahay.. 500 petot lang kasi ang max na pakarga bawat station..

sayang 40liters pa naman... dibale pang hugas hugas na lang..

maraming salamat sir!

Sir kung kulay lang naman ang kinaiba compara sa diesel ng ibang known brand, no problem po yan. Ang importante ay hindi siya tampered. Kung itong diesel ay ginamit nyo na dati sa sasakyan at ok naman ang resulta ibig sabihin ok ito. Hindi po yan basta magdeteriorate ang quality except maybe sa color.
Ang kulay po ng diesel ay magkakaiba sa iba-ibang brand kasi coloring lang po ito at depende sa brand kung ano ang kanilang preference. Lahat ng diesel ay clear ang kulay sa original na refining process (base sa naobserbahan ko), kinukulayan lang ito para madaling malaman kung anong producto ( gasoline, diesel, jet fuel, etc.). Karamihan nga ng diesel na tina-transport namin from kuwait to korea clear ang kulay. Ganito din ang sa LPG, hindi color ang dinadagdag sa halip ay yung amoy (aroma). Sa original ito ay odorless (as far as I know) pero dahil gas siya at hindi makita kaya nilagyan ng amoy para malaman ang presence ng leakage to avert possibility of fire/explosion.
This is as far as I know. Kung may mali paki correct lang po mga papee. .thanks.

[DieselDI]

Quote:
Originally Posted by DieselDI View Post
Sir help po! kanina before ako umalis ini-start ko na yung sasakyan para uminit na yung makina, normal running for more or less mga 10mins bago ako umalis then mga about a kilometer pa lang yung natatakbo ko, biglang nanginig yung makina, naging palyado then pagnagre-rev ako, ang lakas ng usok (bluish gray) tapos humina ang hatak, bumaba ang rpm pero di naman namamatay ang makina, wala din problema sa starting. Bumalik na lang ako sa bahay at di na ako umalis baka kasi itirik ako. Ano po kaya ang problema? rotor head po kaya? (sana hindi naman). Possible kaya na injection pump? How about yung nozzle tip? Nagreplace kasi ako ng nozzle tip almost a month ago na, mausok at malakas sa diesel kasi before but after mapalitan yung nozzle tip, nawala yung usok, tumipid din sa diesel pero hindi nagbago ang batak. By the way, nakita ko naman po kung paano ni-replace yung nozzle tip, maayos at same code din yung pinalit, zexel po yung brand.

Ride ko po, 97 Isuzu TFR 4JA1

Thanks
Try checking everything external like valve clearances, blocked air intake system. etc. But from experience, this seems to be an injection pump problem.... more specifically... the rotor head.

Good luck.

Already got culprit sir, nag bara yung nozzle. nilinis nung technician yung nozzle and after that it runs fine again. Thanks Doc

[Dieseldude]

Already got culprit sir, nag bara yung nozzle. nilinis nung technician yung nozzle and after that it runs fine again. Thanks Doc

But these nozzles had just been replaced with original ones, di ba? Does it mean that the previous repair wasn't properly done?

Thank you for sharing your "fix".

[gcl_2000]

Sir Dieseldude, thanks for the reply.

[ramledi]

question lang po sir about fuel knock. ano po ang masamang epekto ng fuel knock sa makina?

nagpalinis kasi ako ng injector then after that may lumitaw na ingay. sabi ng mechanic fuel knock daw yun. kaya daw lumitaw dahil nalinis daw yung bara sa injector na medyo singaw na daw. inilagay nya sa number 1 cylinder yung nozzle para alam ko daw kung ano yung papalitan.

[Dieseldude]

question lang po sir about fuel knock. ano po ang masamang epekto ng fuel knock sa makina?

nagpalinis kasi ako ng injector then after that may lumitaw na ingay. sabi ng mechanic fuel knock daw yun. kaya daw lumitaw dahil nalinis daw yung bara sa injector na medyo singaw na daw. inilagay nya sa number 1 cylinder yung nozzle para alam ko daw kung ano yung papalitan.

Mataas ang combustion pressure.....masama para sa piston, head gasket, and valves......low power na.....smoke pa.

Sometimes, naipitan ng dumi ang nozzle or na-overtorque ang installation. Kung hindi madala sa linis, replace nozzle and calibrate to correct opening pressure.

[ramledi]

sir, pa-pm naman po ako estimate quote para sa change nozzles at calibration ng hilander. paki detail po para mapagkasya ko po yung budget ko. thanks po

[ramledi]

sir, nagpunta po ako kanina sa shop nyo para ipagawa yung hilander ko kaso wala na daw kayo

saan na po kayo ngayon?

[DLX_Revo]

Hi Dieseldude,

I just bought a 2nd hand Pajero (Japan/Subic), below are the vehicles specifications:
- 1998 model / 5 doors
- 2.5 TDIC
- 4D56 Engine
- Automatic

The problem:
- mahina sya humatak
- hirap sa pataas na road
- malakas sa krudo (about 4-5 km/liter)

Maintenance performed:
- changed ATF fluid
- cleaned ATF filter (El Dorado does not have the model)
- changed Fuel filter (original)
- changed Air filter (original)

My Pajero is not producing black smoke actually it barely produces smoke, and the automatic transmission is shifting fine, overdrive is also working.

As per the previous owner he had it calibrated more than a year ago and replaced the nozzles 6 months back. What do you think is causing the sluggishness and high fuel consumption?

Can you give me at least an estimate for the following job scope?
- Recheck injection pump to engine timing.
- Check and or repair turbocharger boost.
- Check and or calibrate injection pump.
- Check and or replace nozzles with original ones.

Thank you in advance.

[DLX_Revo]

Hi Dieseldude,

I just bought a 2nd hand Pajero (Japan/Subic), below are the vehicles specifications:
- 1998 model / 5 doors
- 2.5 TDIC
- 4D56 Engine
- Automatic

The problem:
- mahina sya humatak
- hirap sa pataas na road
- malakas sa krudo (about 4-5 km/liter)

Maintenance performed:
- changed ATF fluid
- cleaned ATF filter (El Dorado does not have the model)
- changed Fuel filter (original)
- changed Air filter (original)

My Pajero is not producing black smoke actually it barely produces smoke, and the automatic transmission is shifting fine, overdrive is also working.

As per the previous owner he had it calibrated more than a year ago and replaced the nozzles 6 months back. What do you think is causing the sluggishness and high fuel consumption?

Can you give me at least an estimate for the following job scope?
- Recheck injection pump to engine timing.
- Check and or repair turbocharger boost.
- Check and or calibrate injection pump.
- Check and or replace nozzles with original ones.

Thank you in advance.