Problem accelerating beyond 100kph

[b0y37]

Hi guys,

I just want to ask your opinion regarding my Advie.

2006 Adventure diesel, 88k on the odo, due for PMS and change Timing Belt (PMS was last done 5k kms ago), fuel filter last replaced 10k kms ago, air filter last replaced 5k kms ago.

Engine speed seems to be rev-limited to 3k rpm. I can make it run up to 100kph (3k rpm) with no problems. But beyond that, further depressing on the accelerator pedal (as in pedal to the metal) only result to black, black smoke, as if the additional diesel is burnt and then sent to the exhaust directly, no increase in speed.

Can this be a symptom of the timing belt needed to be replaced? As if the timing belt is slipping at high rpm. I know that my unit is due for oil change, but Im somehow doubtful that this is the sole problem.

By the way, I used to mix 2T on my diesel. Do you think it messed up my injectors?

[jrn29]

try to check the injection pump sir, , ganyan din naging sakit ng adventure ko, kahit pedal to metal na stock lang sa 3k rpm *100 kph . madumi lang pala ang injection pump ,;)

[Retz]

nung nag drive ako adventure before, nasa 5th gear na 80kph, mdyo hirap na makina if you go 100 up na.

[b0y37]

Na-max ko kasi dati yung advie ko ng 130kph, around 4200 rpm. So may baseline ako kung may problema yung makina. In the situation I described above, ayaw talaga umangat ng RPM.

[LN106G]

Use quality air filter. Use OEM. I haven't seen quality replacement air filter for the mitsu advie or the L300. Chances are you're air filter is super dirty or you are using cheap replacement air filter

[jrn29]

Na-max ko kasi dati yung advie ko ng 130kph, around 4200 rpm. So may baseline ako kung may problema yung makina. In the situation I described above, ayaw talaga umangat ng RPM.

wala sa makina yan sir, nasa air filter nga yan, or sa injection pump , ganyan talaga kadalasan nagiging problem sa mga 4d56 ;)

or try to tune up sir :sweat:

[K.I.L.L.]

Diesel engines need to be cleaned and calibrated every so often. Yours might be blocked. Take it to a competent diesel specialist such as Berrima, Malabon diesel or Central diesel for them to have a look.

[basti08]

I-advance mo timing. Did that to my Adventure before. A-OK results!!!

HTH

[b0y37]

Update: i rem0ved the air filter, and test drove my advie. Ramdam ung difference sa hatak, and napaabot ko ng 3500 rpm. Pansin ko lang, baliktad yung pagkalagay ng "fins" nung filter element, kaya siguro knakapos pag high rpm. Bnaliktad ko yung fins, and mas able to rev the engine til 4k rpm at neutral. Will test t0m kung ok n talaga cya.

*sir basti, id like to keep my engine in stock settings as much as p0ssible :-)

[sirkosero]

Update: i rem0ved the air filter, and test drove my advie. Ramdam ung difference sa hatak, and napaabot ko ng 3500 rpm. Pansin ko lang, baliktad yung pagkalagay ng "fins" nung filter element, kaya siguro knakapos pag high rpm. Bnaliktad ko yung fins, and mas able to rev the engine til 4k rpm at neutral. Will test t0m kung ok n talaga cya.

*sir basti, id like to keep my engine in stock settings as much as p0ssible :-)

Binaliktad mo yung air filter? Your sucking all the dirt that was trapped by filter to your engine. Excellent way of destroying the engine... just change the air filter with a new one

[b0y37]

Binaliktad mo yung air filter? Your sucking all the dirt that was trapped by filter to your engine. Excellent way of destroying the engine... just change the air filter with a new one

Not the filter itself. Yung bilog na plastic na may fins.Ganito yung pagkakabit ng mekaniko:



Tinanggal ko muna yung plastic "fins".
Also, I noticed na hindi ganon kadumi yung air filter. I think masyado narerestrict yung hangin papasok sa loob ng makina.

[yapoy86]

tama yan kabit ng mekaniko mo... yung fins na yan is intended to disperse the air entering the filter.. masyado kasi nakatutok yung pasukan ng hangin sa air filter kaya nilagyan yan ng fins para pantay yung pasok ng hangin

[b0y37]

tama yan kabit ng mekaniko mo... yung fins na yan is intended to disperse the air entering the filter.. masyado kasi nakatutok yung pasukan ng hangin sa air filter kaya nilagyan yan ng fins para pantay yung pasok ng hangin

Ganon ba sir, I thought the fins are supposed to move, hehe.Anyway, nung tinanggal ko yan, nagimprove yung acceleration ko eh. Palitan ko na lang yung air filter ko. Hindi kasi yan yung usual na binibili ko eh.

[Retz]

Binaliktad mo yung air filter? Your sucking all the dirt that was trapped by filter to your engine. Excellent way of destroying the engine... just change the air filter with a new one

o nga sir, bakit hindi na lang palitan ng bagong air filter and see if your engine revs improve?

[b0y37]

o nga sir, bakit hindi na lang palitan ng bagong air filter and see if your engine revs improve?

yup, palitan ko na lang ng OEM, sabay ko na sa change TBelt ko

[nelany]

Gamitin mo ma rin ay yung OEM na filter para malaman mo ang response.