help naman po with my isuzu c240

[Jasper Hermano]

Sir blue_gambit..

Salamat po talaga..I'll do as you say..may valve po yung sa may exhaust pipe malapit sa makina..para po dun lagyan ng tubig..

At saka, mejo maalaga nga po ako sa makina..sa lahat ng sasakyan namin..2-3k rpm (for diesel engines, kasi ginagamit ko husto yung torque nia) lang ako madalas pag below 4th gear..

yung air filter nga po pala, may mairerekumenda po ba kaung brand na pwede kong ipalit sa air filter ng c240? parang graba lang po kasi ata ang masasala ng filter ko eh..nung nilinis ko siya..

Salamat po talaga!

[Jasper Hermano]

Basta white smoke nagsusunog ka na ng oil nun. Piston rings na papalitan pag ganun. Ang rings kase ang naghihiwalay ng engine oil mo (sa baba ng piston) at fuel/air mixture mo (sa taas ng piston). Pag gastado na humahalo na ang oil sa pag ignite ng fuel mo. Pero to be sure pa compression test mo. Nawawalan ka na ba ng hatak?

Sa ibang tanong mo wala po akong alam sa diesel engines sensya na.

Sir tincan,

pwede rin po..lumang luma na rin ho kasi ang makina..mejo nga po ramdam ko na bumaba hatak..at parang nanginginig ng konti yung takbo nia..

salamat po sa recommendation..at least alam ko na po kung ano mga ippcheck ko..

[Jasper Hermano]

Mga sir,

ano naman po kaya dapat kong gawin para pwede ko nang pa lagyan ng turbo ang isuzu c240? Nakakatamad po kasing palagyan ng bagong mountings kung papalitan ko makina eh..

Salamat po..

[Dieseldude]

Mga sir,

ano naman po kaya dapat kong gawin para pwede ko nang pa lagyan ng turbo ang isuzu c240? Nakakatamad po kasing palagyan ng bagong mountings kung papalitan ko makina eh..

Salamat po..

Heto ang mga dapat gawin:

1. Replace your injection pump with one with a boost compensator.
2. Replace intake manifold and modify air intake plumbing to the turbo.
3. Replace exhaust manifold and modify exhaust pipe.
   
4. Optional: Install intercooler
5. Finally, install a properly matched turbo
   

Hindi ka pa makasisigurado kung maganda ang magiging resulta nito. Depende ito sa ilalagay mong turbo at sa quality ng workmanship sa modification. Pwede rin mahirapan ang engine dahil sa mas mataas na air and fuel inputs.

[Jasper Hermano]

Sir Dieseldude,

Maraming salamat po..take note ko po yun..

[Kamala]

sir, kung gusto mo you may inquire a brand new engine sa isuzuphil...yung C240 kase medyo luma na yung engine na yan...kung gagastos ka rin lang, might as well buy a brand new engine..kung kaya mo rin lang..you may email them at ptmarketing*isuzuphil.com

at least kung bago, no worries sa sira, walang huli kada daan mo sa makati or kung san man at walang problema sa LTO Registration....kung willing ka ding gumastos based on what one of the frumers told you (conversion, turbo application, etc...)

[c240-4wd]

assembled lang po sasakyan namin, medyo matanda na din po. mausok na po at 2 beses na po ako nahuli sa makati. ginawa ko na po lahat ng alam ko, nagpalit na ako ng nozzles at ngpacalibrate na ko. nilinis ko na din po ung exhaust. sana may makatulong lang po.

try po check plunger at delivery valve ng injection pump. baka masyado malakas bigay ng crudo. at piston ring po, baka may tama na, hope makatulong...

[duskylim]

Sir, yung AUV (C240) ko po eh naglalabas ng maraming white smoke pag average revs..pero pag masyado na pong mataas katulad pag na sa highway na eh napakaitim na po..kaya limitado lang yung tapak ko kasi kinokontrol ko lagi yung buga ng usok ko tuwing nagddrive..

Additional question din po, plano ko po kasi sanang palitan yung C240 ko ng 4JB1T from isuzuphil kaso sa research ko po masyado pong mahal..pwede ko nalang po ba na palitan ang injection pump ko? from Indirect to DI? at pwede rin po ba na palagyan po ng turbo yung C240 q? natatakot lang kasi ako baka bumigay na yung cylinders..meron po ba yung isuzuphil ng mga ganitong parts?

Salamat po ng marami! Pasenxa na sa abala...

Dear Jasper:

Whether a diesel engine is a direct injection (DI) design or indirect injection (IDI) design is NOT determined by the injection pump, it is determined by the location and design of the COMBUSTION CHAMBER.

In a DIRECT INJECTION diesel, the combustion chamber is INSIDE the crown of the piston and the injector sprays fuel directly into this bowl.

All combustion occurs inside this bowl and combustion pressure acts directly on the piston with little loss of heat and pressure to the other parts of the engine, making this thermodynamically the most efficient design.

In an INDIRECT INJECTION diesel, the combustion chamber is DIVIDED - separated into several parts, which are interconnected by narrow passages.

In this design, the injector sprays into the main chamber which is usually located within the cylinder head, with a narrow passage, called a 'throat' connecting it to the cylinder and piston.

The reason for this configuration is to generate turbulence - rapid movement of air, to ensure good mixing with the fuel spray and efficient, quick and complete combustion.

Of course the narrow passages, extended surface areas and separated combustion zones, create greater heat and throttling losses, lowering the designs' thermodynamic efficiency.

So, why go to all this trouble?

Well IDI diesels were first successful High-Speed diesel designs.

They were developed before World War 2 in an effort to make AUTOMOTIVE (car and light truck) diesel engines run at higher RPM's.

The earliest and most large diesel engines (power plant, ship, locomotive) were all Direct Injection designs - they could use this design because they ran slowly.

As engineers tried to speed up diesel engines, they found that it was very difficult to make the fuel burn fast enough with the D.I. design.

They realized that the problem was that the air and fuel were not mixing fast enough to keep up with the high speed in the DI design.

Their answer was to force the air at high speed through narrow passages into a separate chamber where it would meet the injection spray, mix violently with it, then burn, reversing it's flow and exiting the opposite way it came in.

Numerous designs were created by various companies:

1) the Turbulence Chamber (favored by the Japanese, the British and the French carmakers, VW, Ricardo and Kloeckner-Humboldt-Deutz),

2) the Pre-Combustion Chamber (favored by Daimler-Benz and Caterpillar),

3) the Energy Cell (favored by Lanova),

just to name a few, used different variations of the aforementioned theme to achieve the desired results.

Locally, one of the most common cars to use this design (Ricardo Comet V Turbulence Chamber) was the Isuzu Gemini Diesel with it's 4FB1 engine - a landmark in low-cost automotive diesels.

These designs reached their peak of popularity from the 1980's to the mid 1990's.

They were later replaced by turbo-DI designs, which have become almost universal among automotive diesels.

So how did modern engineer's overcome the problem of fast combustion with the DI design?

It all comes down to the problem of MIXING of the air and fuel.

In the IDI designs, AIR is sped up to force good mixing with the relatively low-pressure injection spray.

In MODERN DI designs, FUEL is sped up to create the necessary good mixing - using very high pressure sprays.

That is how we were able to make the DI diesel design work at high speed.

The key that enables the modern CRDi diesel is the high-pressure, electronically-controlled injection pump and it's fast-acting injectors.

Best Regards,

Dusky Lim

[unsec87]

Good morning mga ka-tsikot, ask ko lang ano kaya problem nung c240 namin kasi newly overhauled na yung engine tapos sumuka ng oil sa exhaust.
Pinalitan po namin ulit valve seal pero parang ganun pa din. Ano po kaya problem nito?

[shelu]

assembled lang po sasakyan namin, medyo matanda na din po. mausok na po at 2 beses na po ako nahuli sa makati. ginawa ko na po lahat ng alam ko, nagpalit na ako ng nozzles at ngpacalibrate na ko. nilinis ko na din po ung exhaust. sana may makatulong lang po.

c240 ang isa sa pinakamatibay na makina ng isuzu. matipid na matipid din at mura ang parts. downside lang nito, maingay ang makina at makupad. wala sa tanda ng makina yan, nasa proper maintenance lang yan. try nyo muna linisin ang tambutso. minsan, kailangan din ng italian tune up yan para iwas build-up ng carbon deposits.