Alternator versus Battery

[slipar]

not healthy if at any point of the car is driven (proton), the volt drops below 13.5v. Minimum is 13.5v when aircond (at full blast), headlamp (high beam), foglights, room lamp, window heater, wipers & radio turned on (even for a 15yrs old Proton). Most proton circuit voltage when every electrical switch is turned on will display 13.5-13.6v. Only occasionally for cars with big ICE, or 100/120w spotlights using 75/90A alternator & 70A battery shows 13.3-13.5. On 100A alternator + 70A batt it should still show 13.6v. but on initial startup of the day, it should make 14.1-14.4v with 60A & 70A battery, regardless of dry or wet cell, and what amp of alternator.

Many possibilites that may have led your car doing 13.3v and its not something that can be advised easily through writings, but it is something that can be confirmed that your car's electrical system is not well and need to be sort out immediately. However, do use a multimeter first (tap to battery while engine's running) to get the voltage reading correctly. Some voltmeter may show shyte reading... like those fake Apexi pen timer or... fake brand voltmeter.

need gounding la like this my car.. 20 years old already my car this year..

 

[scoupe]

what i did for my 20 year old car was remove all the old grounding wires re sanded the terminals and the grounding points. In some cases the grounding wire also was sanded down. i got almost 1 volt increment. :) if your gonna buy after market grounding cables buy proper ones not those rm 15 hks ones.. just my two cents.

 

[vr2turbo]

need gounding la like this my car.. 20 years old already my car this year..

Did not know your car already 20 years old. Thought mine was old....hahhaha

---------- Post added at 01:50 PM ---------- 6 hour anti-bump limit - Previous post was at 01:47 PM ----------

Bigger amp alternator give out more current only, not higher voltage. Big amp alternator charge up your battery faster and should have enough juice to run most things

 

[slipar]

Did not know your car already 20 years old. Thought mine was old....hahhaha

---------- Post added at 01:50 PM ---------- 6 hour anti-bump limit - Previous post was at 01:47 PM ----------

Bigger amp alternator give out more current only, not higher voltage. Big amp alternator charge up your battery faster and should have enough juice to run most things

1st batch wira with rear lamp like those merc masterpiece one..hahahah..
will try diy 1st sand the ground terminal & point..if no effect grounding cable will be the choice..

 

[vr2turbo]

1st batch wira with rear lamp like those merc masterpiece one..hahahah..
will try diy 1st sand the ground terminal & point..if no effect grounding cable will be the choice..

I had the first batch Wira too. 1993 model bought in 1997, sold in 2003 because the roof rusted. That model the alternator never had problems at all for me.....

 

[ken yeang]

I had the first batch Wira too. 1993 model bought in 1997, sold in 2003 because the roof rusted. That model the alternator never had problems at all for me.....

hahahahaa, the (in)famous roof rusting and blisters....among proton Wira. Some had rusted door panel. Really brings back "sweet" memories to me.

 

[vr2turbo]

hahahahaa, the (in)famous roof rusting and blisters....among proton Wira. Some had rusted door panel. Really brings back "sweet" memories to me.

Door panel rust usually the old model Sagas....
Wira is 99% roof....

 

[jedi]

guys, thanks for all the advises.
I whacked the spare part shop nicely for selling me a FOCUS/APM alternator @ RM220
He then told me that he has original brand new alternator @ RM370, we then agreed to trade in the old unit and top up RM150 for it.

I will do something on the grounding too...

thanks !

---------- Post added at 11:42 AM ---------- 6 hour anti-bump limit - Previous post was at 11:40 AM ----------

My guess is your car has been in some accident before and accident-cars tend to have bad grounding which is further compounded by the age of the car and probably worn out original grounding leads.

yes sir, you are absolutely right ! i had an accident before the alternator starts to give problem

 

[vr2turbo]

guys, thanks for all the advises.
I whacked the spare part shop nicely for selling me a FOCUS/APM alternator @ RM220
He then told me that he has original brand new alternator @ RM370, we then agreed to trade in the old unit and top up RM150 for it.

I will do something on the grounding too...

RM370 for original is cheap. My friend say he bought his Waja at around RM700....:hmmmm:

 

[jedi]

RM370 for original is cheap. My friend say he bought his Waja at around RM700....:hmmmm:

I asked 2 mechanic to check for me, 1 say RM350 and 1 say RM370
So i believe RM370 is genuine. warranty 1 year

 

[vr2turbo]

I asked 2 mechanic to check for me, 1 say RM350 and 1 say RM370
So i believe RM370 is genuine. warranty 1 year

My friend one even though RM700 he say no warranty..... but he used almost a year already. The recon one he bought died in 6 months

 

[awie5940]

is it by stretching/tighten alternator belt also effecting the voltage?
in my situation, i heard some noise from alternator belt. i had tighten the belt and it increase the volt to 13.3v instead of 12.4v before.

 

[ken yeang]

the "increase" of voltage is actually fluctuation of voltage.

No alternator can give can a constant voltage value.
Check it with an voltmeter, if not convinced.

 

[vr2turbo]

is it by stretching/tighten alternator belt also effecting the voltage?
in my situation, i heard some noise from alternator belt. i had tighten the belt and it increase the volt to 13.3v instead of 12.4v before.

Unless it is slipping very badly, but should not be, because the sound will be continuous....

 

[Kopi]

OEM original alternator for Wira is at least RM750 (even that is the touchwood lucky basted price).
for 350++, that's third party manufactured NEW alternator, made in Malaysia or Taiwan.
160-190, this is recond alternator.
120-150, this is chopshop price for halfcut alt.

 

[Izso]

My friend one even though RM700 he say no warranty..... but he used almost a year already. The recon one he bought died in 6 months

I'm surprised RM370 is "original". Probably OEM manufactured but still beats recon anytime. My Wira last time ori Proton 70A was 500+ and the 90A OEM brand one was RM300+ and it came with 3 months warranty.

is it by stretching/tighten alternator belt also effecting the voltage?
in my situation, i heard some noise from alternator belt. i had tighten the belt and it increase the volt to 13.3v instead of 12.4v before.

If slipping then normal la. Tighter meaning you're turning the pulley faster / better so sure la higher voltage.

 

[vr2turbo]

OEM original alternator for Wira is at least RM750 (even that is the touchwood lucky basted price).
for 350++, that's third party manufactured NEW alternator, made in Malaysia or Taiwan.
160-190, this is recond alternator.
120-150, this is chopshop price for halfcut alt.

I tried chop shop ones, no luck. One lasted 1 week and one only 1 month. Lucky the 1 week one they change, but lost out on the 1 month one. Then tried Recon and much better. Last up to 2 years....

 

[^pomen_GTR^]

I asked 2 mechanic to check for me, 1 say RM350 and 1 say RM370
So i believe RM370 is genuine. warranty 1 year

RM370 for original is cheap. My friend say he bought his Waja at around RM700....:hmmmm:

guys, thanks for all the advises.
I whacked the spare part shop nicely for selling me a FOCUS/APM alternator @ RM220
He then told me that he has original brand new alternator @ RM370, we then agreed to trade in the old unit and top up RM150 for it.

I will do something on the grounding too...

thanks !

---------- Post added at 11:42 AM ---------- 6 hour anti-bump limit - Previous post was at 11:40 AM ----------



yes sir, you are absolutely right ! i had an accident before the alternator starts to give problem

becarefull with the so-called rm370 original alternator....my kolik kena few months ago...yes outside got bosch sticker on the alternator body.....but when the alternator kong....the other shop shows me the different between real original bosch and the rm370 bosch alternator side by side....

 

[vr2turbo]

becarefull with the so-called rm370 original alternator....my kolik kena few months ago...yes outside got bosch sticker on the alternator body.....but when the alternator kong....the other shop shows me the different between real original bosch and the rm370 bosch alternator side by side....

Aiyah! nowadays imitation look like original.....

 

[ken yeang]

There is hardly real ori.
The real ori is the fake ori