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mit. storm fuel pump modification


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#11
cHUcHU

Posted 23 November 2004 - 08:07 AM

cHUcHU

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slkmerc,

For the Italian Tune-Up, do conduct a search on the "diesel domain"
thread. Much has been discussed, including ekhoo, who had a good result
with his L200.

For the Ranger/Fighter fuel pump, the "power" adjustment screw has been
sealed from the factory. No fiddling is possible. Ditto for the anaerobic
device or "under boost compensator" on top of the fuel pump - the hex
screw has been sealed with factory emission paint.

The "power" adjustment screw is the screw that controls the amount of
diesel into the injectors at each pumping stroke, and hence the amount of
black smoke produced.

To locate this "power" screw, locate the fuel pump, and at the rear side
of the pump (facing the clutch reservoir) among the fuel injection steel
lines there is a funny-shaped cadmium-plated hooded thingamagic.

If you do so wish to fiddle with the "power" screw (I dont have to since
I dont have a smoke problem - regular Italian Tune-Ups), find a way to
break the hooded cap, I expect some prying and a little bit of hacksaw
work on the steel cap.

Mind you, fiddling with the injector pump will render your rig not
emmision-worthy, since the factory emission seal has been broken.

Your results might vary.

#12
ekhoo

Posted 23 November 2004 - 10:49 AM

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been away quite a while so...

yes, i'll vouch for the italian tune-up... recently no need for me to do a
special drive since I've been going to putrajaya once a month on work
matters so it's easy to blow out all the accumulated deposits!


#13
slkmerc

Posted 23 November 2004 - 11:33 PM

slkmerc

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cHUcHU,

Thanks for the info.
I'll ask Ford SC to show me where the screw is located on my next visit,
since they can't solve my smoke problems. I believe by reducing the fuel
to the injector, thus increasing the air/fuel mixture and better
combustion.

#14
cHUcHU

Posted 24 November 2004 - 09:31 AM

cHUcHU

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slkmerc,

before you ask them to fiddle/tamper with the fuel pump, I would like to
advise that you clean/replace/service/recalibrate your injectors first.

I suspect that the smoking problem lies with your clogged/improper spray
pattern injectors.

This is likely caused by not draining the water sedimentor often enough
and not replacing the fuel filter frquently.

Buying your diesel at some suspect servos also will cause the problem.
(dirty diesel fuel.

Reducing the fuel to the injectors will make the truck underpower and you
will lose that stump-pulling 280Nm of torque that you paid for.

By doing that will make you press the accelerator more to move the truck,
hence worsening the smoking problem.

My 0.02 sen, your results might vary....Smile

#15
slkmerc

Posted 29 November 2004 - 05:38 PM

slkmerc

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cHUcHU,

Based on your advice, I will on my next service replaced all
four injectors for good. BTW, does faulty injectors directly cause high
fuel consumption? My ranger only does 300km on full tank, RM45 on current
fuel price.


#16
No2Proton

Posted 29 November 2004 - 05:55 PM

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wow...

300km for RM45? very expensive lar.

I pay RM50 for 600km. Ford Ranger.

#17
hhkonghh

Posted 29 November 2004 - 05:57 PM

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4 injector might cost a fair bit. Before you do that, why not have it
checked for spray pattern. That shouldn't cost much and it's pretty fast
anyway.

Yes, your fuel consumption is extremely bad. Something is not right for
sure. My guess is it should definitely not cost more then 10 sen/km if you
are not heavily loaded and lead footed.

How's the tire? Large and under-inflated? Could easily cost your 10 - 15%
more FC.

#18
cHUcHU

Posted 30 November 2004 - 01:36 PM

cHUcHU

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diesel kaki's`

My 2001 Mazda Fighter rig has the same engine (no EGR) as the same year
Ranger.

My usual FC is 290 kilometres travelled, needing 32-33 litres of diesel
fuel (10 sen per km). Usually 100% urban start/stop, and I am not light
on the throttle either.

Yep, kong is right - get the injectors checked/replaced A.S.A.P. The
injectors might be dribbling drips of diesel instead of producing fine
atomised mist of diesel hence the black smoke that you see.

Overfuelling by dud injectors will damage the valves and cylinder head as
the EGT will shoot sky-high.

Please post the results once you solved the problemCool

#19
hhkonghh

Posted 30 November 2004 - 05:52 PM

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To scare the living day light out of you so that you will not delay the
checking: Excessive diesel fuel will wash off the lubricant off the
cylinder wall leading to excessive wear......

Sorry, couldn't help that Blackeye

#20
slkmerc

Posted 01 December 2004 - 12:19 PM

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ok, will do that asap, the last 2 service i did ask them to check, the
replaced the exhaust gasket due to leakage.