Diesel Fuel Injection System Help Desk

**Dieseldude** · May 26th, 2013 07:53 AM

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** · May 27th, 2013 05:01 PM

Originally Posted by 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...

Thanks sir DD

**radiator3L** · May 29th, 2013 06:22 PM

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** · May 31st, 2013 08:40 PM

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**nitram** · June 4th, 2013 04:35 AM

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** · June 6th, 2013 09:44 AM

Originally Posted by 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.

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** · June 15th, 2013 05:41 AM

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** · June 15th, 2013 01:15 PM

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** · June 15th, 2013 07:29 PM

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

**cokezero** · July 4th, 2013 10:49 PM

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!