Ask Xulfiqar - An Automotive Encyclopedia

[margallar]

learning is an ongoing process if one is willing, - i will do an effort now to see the cultus tappet cover removed to know the " DABBO " adjustment

totally agree, but for some reason locals are usually not so eager to transfer their knowledge to others (sometimes even to learn from others). Sometimes people get scared when they see enthusiasm to learn, sometimes just annoyed

either way, usually workshop people usually are not cool with someone hanging around, even if somehow the person is related.

[Xulfiqar]

@Xulfiqar, i had an idea, i won't be able to implement it but still want to know if it is plausible.

there is that hitachi carburetor (which i think has its own ecu, generally used in american relatives of the suzuki swift/cultus) , maybe that setup is called throttle body injection, i am not sure

anyways, i was thinking, if we could somehow make an ecu for it and had access to a dyno, maybe we could make maps for different engines

that would enable the conversion of 800-1300 cc carby vehicles to a basic form of fuel injection. with just the need to get a new manifold and the tbi setup.

an efi conversion kit

GM already did that in the 80s - they had TBI injection with a multitude of configurations to serve multiple applications of the same engines. The daewoo racer you see is exactly that, if you notice its wiring, it basically is just tied to the intake manifold with one brand of wiring going to the distributor and coil.

[doc.tarzan]

the temperature on this engine would touch 100C for in very hot weather with A/C running but the fan clutch should be locked and the engine fan should sound like a truck (very very loud). The condenser fans should be running too.

The oil in coolant is bad mojo - your headgasket is starting to give up. you will need a headgasket job soon. If you let oil circulate in the cooling system it will eat the rubber pipes inside out.

Do a drain and cleanup of the cooling system with something like a surfactant that does not make foam/suds/jhaag and refill with MB coolant of equivalent BASF Glysantin G-05

thank you . Will clean and drain the system tomorrow.

[umarkhan1]

@xulfiqar
About 6 months ago,i did tuning of my cultus efi from a good known mechanic.he did tappets adjustment.now engine noise is increased especially when engine warms up.i went to him and he said that we have done this setting to a tons of balenos and cultus and no problem.
Do i need tappets settings again??

Sent from my iPhone using PW Forums

[Xulfiqar]

@Xulfiqar
About 6 months ago,i did tuning of my cultus efi from a good known mechanic.he did tappets adjustment.now engine noise is increased especially when engine warms up.i went to him and he said that we have done this setting to a tons of balenos and cultus and no problem.
Do i need tappets settings again??

Sent from my iPhone using PW Forums

you need to check the tappet gaps with dead cold engine at exact correct engine angle.

[margallar]

GM already did that in the 80s - they had TBI injection with a multitude of configurations to serve multiple applications of the same engines. The daewoo racer you see is exactly that, if you notice its wiring, it basically is just tied to the intake manifold with one brand of wiring going to the distributor and coil.

do any aftermarket manufacturers make such kits, maybe this could be a good idea to introduce into pakistan, i wish i could patent it before anyone else does it here :P....i gotta learn this stuff

edit: just discovered that aftermarket manufacturers make them, usually for american muscle cars.

[Xulfiqar]

do any aftermarket manufacturers make such kits, maybe this could be a good idea to introduce into pakistan, i wish i could patent it before anyone else does it here :P....i gotta learn this stuff

edit: just discovered that aftermarket manufacturers make them, usually for american muscle cars.

yes you can but you need to buy the patented stuff, like the injectors, TBI unit with built in FPR like you saw in daewoo racer - then write an ECU with the correct timing map etc. etc.

[venmouskiller]

@xulfiqar @doc.tarzan
bhai i need your suggestion
i was thinking to drop my corolla 2013 2 inches
i was thinking to buy axio spring and cut them
now the question is
will they effect the suspension
will they effect the stability or balance of car
what are the pros and cons ??

[doc.tarzan]

@xulfiqar @doc.tarzan
bhai i need your suggestion
i was thinking to drop my corolla 2013 2 inches
i was thinking to buy axio spring and cut them
now the question is
will they effect the suspension
will they effect the stability or balance of car
what are the pros and cons ??

Just buy shorter stiffer springs. The ends of a proper spring is a full flat type circle, when you cut it the lower base of the spring becomes a semi circle and is not flat so it does not sit properly ... hope you get what I am saying anyways xulfiqar can explain much better

[venmouskiller]

Just buy shorter stiffer springs. The ends of a proper spring is a full flat type circle, when you cut it the lower base of the spring becomes a semi circle and is not flat so it does not sit properly ... hope you get what I am saying anyways xulfiqar can explain much better

thori bht samaj a gai
bhai any side effects i have heard its ruins the suspension is it true ??

[doc.tarzan]

thori bht samaj a gai
bhai any side effects i have heard its ruins the suspension is it true ??

Ruin ka to nahi pata but the car doors not handle as well that's for sure.

[venmouskiller]

Ruin ka to nahi pata but the car doors not handle as well that's for sure.

bhai red wala part samaj nai aiya

[doc.tarzan]

Sorry sorry auto correct door=does lol

[doc.tarzan]

@ xulfiqar ... I am confused about the fan clutch, what I understand is that when the car is cold it would be hard to rotate and when hot it will rotate freely ?? Is the rolled newspaper a good test?

[venmouskiller]

Sorry sorry auto correct door=does lol

lol okay
means dropped cars have bad handling so i have to drop the idea

[doc.tarzan]

lol okay
means dropped cars have bad handling so i have to drop the idea

i did not mean that.dont cut springs go for shorter springs or coilovers

[venmouskiller]

@doc.tarzan
bhai you said shorter and stiffer springs
what if i buy softer and shorter springs so that comfort is not compromised??

[venmouskiller]

i did not mean that.dont cut springs go for shorter springs or coilovers

coilovers are way out of my budget i have heard they are 20k+

[Xulfiqar]

@ xulfiqar ... I am confused about the fan clutch, what I understand is that when the car is cold it would be hard to rotate and when hot it will rotate freely ?? Is the rolled newspaper a good test?

I think you are thinking of the clutch working backwards,

fan clutch normal operation is thus

ENGAGED
few seconds after cold start
engine hot - radiator air is hot - usually 95C on the gauge in summers.

DISENGAGED
engine under fan clutch control temperature

The fan clutch when engaged will literally show you its engaged, it roars really loud when you accelerate the engine - sounds like a mazda T3500 truck and blows an awful lot of air.

if your engine temperature is going beyond 100C and you dont hear the fan engage then you have a problem with the fan, but before reparing the fan make sure the condenser and radiator fins are clean, if they are not then air cannot pass through them and hence the fan clutch will never get hot. The fan will also never get hot if the fan shroud is missing or broken.

If the fan is freewheeling you can literally stop if with your fingers, when its locked it will chop your fingers, best test to verify is to accelerate the engine rpm slightly and hear/look at the fan.

[Xulfiqar]

btw you mentioned that one spring shim was bad or missing? there are 4 types of spring shims for the front (different heights) - and about 10 types of springs for the W124 chassis, they are not just slapped on like suzuki/toyota/honda, MB actually calculated the load depending on the car and how much equipment was installed in it and then selected the springs and shims - the driver side shim is a bit thicker to compensate for the driver load. Remember that this car was built when MB were built as "cost no object"

The springs are quite long life - and the most common reason for W124 sagging is the front ball joints - they are only tested when you unload the springs, to do that, raise the car and put a jackstand or something under the control arm and let the car come to rest on the control arm support, now take a piece of wood (long and strong) and try to move the wheel up and down and in and out - if you detect even slight movement immediately ground the car until the ball joint is replaced.

If you find the plastic boots on the ball joints are shot and punctured then you need to ground the car till you replace the joints.

The W124 has reverse loaded joints and will cause disaster accident if they let go.