i dont know if i even spelled altanator correctly but i bought my car drove fine one day and the next day the volt meter would start to lower and lower till it drained my batttery my real question low voltage and shaot altanator will that cause low spark and smoke cause it never smoked when i had full 12 volts also it aways smokes after it gets to a quarter tank fuel pump?? or ignition or smoke it smoke a aliitle on startup and blows o rings of white smoke at around 5,000 rpm>>>??

 

Wtf? You have to use some periods somewhere so we can understand what you are saying.

 

i didnt know this was grammer forum.com if you cant help me then dont post in my thread im just trying to learn about these cars wtf

 

He bought car

Battery slowly died

Hes asking if low battery and bad alt would cause low spark and if the low spark would cause white smoke

from my experence with engine problems, I always thought i had coolent leak, then my 7 slowly kept running worse and worse, back fireing like a ****.

Then she wouldn't start changed plugs and battery, started right up, no more smoke except at idle.

So I'd have to say the smoke at 5k if not at all blue is gas, rev it up a few times if it backfires pretty good then its not burning properly, you can also remove your plugs and check em out if you cant see the circle thing in the middle and theres stuff all over them get a wire brush and some rubbing alcohol and clean them, try again (Also get a good alternator lol)

 

thanks ill make sure to be clearer next time.

 

i'll just change the alt anyways since its old, get a FD alternator

 

a fd altanator will work on a 86 rx7???

 

It's not exactly easy. But yes, it will work with some electrical work. Do a search on it, there is threads on it.


And next time, don't lash out at other members. Your post made NO sense at all. My head was hurting after I was done reading it.

 

lol yea i didnt mean too i was trying to get some answers and probally i shouldave been pissed at my car not him

 

OP,

Gas doesn't make smoke! Blue is oil! White is Coolant/ Water. Black is carbon etc.

Don't listen to individuals on here that have been here less than 1 year. These cars require very specific (albeit simple) maintenance. Follow the advise of the individuals that have been here awhile.

To answer your question:

Get new plugs and wires. Replace the fuel filter and fuel pump "sock" filter. Drain your tank if you can (get all the sediment and nasty crap out). Get your battery and alternator checked out at Advance or Autozone (replace which ever one is faulty).

If after all of this you still have smoke, It may be time for a rebuild.

BTW, what year and model do you have (I didn't see this info while I was typing my response.)

 

.

I find it very stupid to say don't listen to people that have been on here over a year, time spent on a forum doesn't make you smarter LOL

many things can cause the smoke, I wouldn't jump into a rebuild just after cleaning the fuel tank out, I mean that doesn't even make sence, you said yourself that gas won't cause smoke, I guess dirty fuel could cause the plugs to foul but the filter would clog and kill the engine before that really came into the equation. he didn't state that it ran like **** just that it puffed out O rings of smoke at 5k,

all I am saying is that it can be any number of things, need to know the color of the smoke and also any mods to the car before a sure answer can be smartly given, we could have you chasing ghosts all day long without specifics, like the other guy said these cars require specific maintainance, and while many problems seem similiar they can be caused by numerous things...

 

First, I didn't say to not listen to people that have been here more than a year. I said don't listen to people that have been here LESS THAN A YEAR.

Also, I never said if this doesn't solve it, it is time to rebuild. I said if you still have smoke, it may be time for a rebuild.

Finally, the things I listed to replace are things that should be replaced on a regular basis anyway.

Replace your filters, change your plugs and wires. Drain gas if shitty (happens @ 1/4 tank). Figure out why your charging system sucks. If car still sucks, give us the new symptoms or be more specific.

 

I thought unburnt gas could cause a greish/white smoke.

If not then why does my 7 not shoot out tons of smoke since getting new bat and spark plugs.

 

sorry its a 1986 se with 140,000k. the smoke wasnt there till i figured i had a bad altanator and my battery died. it dosent run like crap it still pulls hard but every time you give it some gas casper pops out. light a abat man smoke screen pure white!!!!

 

If your posts are hard to read, people won't bother. I read half of it and stopped. If you're too lazy to write a question properly, why should I bother helping? Have fun trying to learn...

 

He can't spell, his grammar is annoying, and he is dishing out attitude...

somebody ban this 13 year old!

 

my bad typo, I meant to say LESS than a year...

so anyway the OP has white smoke at WOT
myself, dunno still up drinkin and not doin much thinkin good luck to you, hate to see a downed 7 hope you get her workin

 

youre trying to ban someone cause they have bad grammer? wtf

 

ok..Grammar put aside.when the Alternator Starts Giving up,the ECU is not getting the Proper Voltage,so your Electronic Fuel Injection system will not be Operating at a Normal Capacity.I can very well see that the car would Backfire if the Charging system is going Kaput.By "rights" the car will go from Running good(12volts Plus) to Crappy(10 volts),and then just DIE (less than 10 volts)..it is best to Check BOTH the alternator and the battery..If the Alternator has been operating Half-assed for awhile,then the battery would be Relied on to supply voltage to Run the car,That puts a Strain on the Battery,and Sometimes,since it has Worked so hard it just gives up too. SO,Long story Short,If you replace the Alternator,Make sure the battery is STILL good,or you may find that you will have to replace that too.

 

i just purchased a remanufactured s5 altanator and installed it. went to craigans auto parts and had my battery checked. jumping the car all the time made the battery go bad. luckily i had a warranty got new battery installed it fired it up NO SMOKE!! only a puff of blue smoke when i rev it to like 8,000 rpm for a sec and let off but i think it might go away case my cats off (replacing gaskets) so ill see after that thanks

 

understood that it not grammar fourm.com but hard to diagnose cause of problem when we can not read cause your ideas can not be understood clearly

 

sorry man, i didn't read all the posts, just the first 3 and got pissed..... good to hear you got your car back in shape!

 

yea only thing i had to do is splice and crimp some wires. I didnt know s5 altanators werent direct bolt ons but it works great. were is my volt meter supposed to be in a s4? mines is between 12 and 15, directly in the top volt meter middle