Flooding,running issues.
#1
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Flooding,running issues.
i just bought a 1984 rx7 12A, sometimes when its running it will just die, it fluds very easy, when i push the gas hard it kinda almost stalls then high revs.
what could the be?
what could the be?
#3
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well, i put in engine treament in the oil too for older engines. might have something to do with that since its rotary..i was told the gas tank had sludge in it(this could be gone not too sure he said put a cleaner in before he sold it to me). the carb used to get the grey sludge too had to rebuild the carb, so if you got any suggestion on that please, feel free to help
#4
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Step 1 address the general tune up items and get that tank cleaned out. Cap rotor wires plugs filter. If its got old gas in it drain the gas and put fresh in. Welcome. There is tons of info here on general tune up procedures and links to the manual.
#5
RX HVN
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No. 1
Change fuel filter!!! (underside in front of rear left wheel).
If it runs poorly still then the tank sludge is re-plugging it?
Lucky you, yours has a drain in the tank (not so my 1980). But unless you can get whats giving you grief OUT thru the drain, you'll need to pull the tank, have a rad shop chem-dunk and flush it - would advise then re-sealing tank with product like POR15's tank sealer kit. Otherwise insides that are shedding may just continue to do so...
Stu Aull
80GS
Alaska
Change fuel filter!!! (underside in front of rear left wheel).
If it runs poorly still then the tank sludge is re-plugging it?
Lucky you, yours has a drain in the tank (not so my 1980). But unless you can get whats giving you grief OUT thru the drain, you'll need to pull the tank, have a rad shop chem-dunk and flush it - would advise then re-sealing tank with product like POR15's tank sealer kit. Otherwise insides that are shedding may just continue to do so...
Stu Aull
80GS
Alaska
#6
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Hard start,running issue.
i have a 1984 12 rx7 4b carb...its having trouble starting and if i can get it started it will run with the choke on for about a min the bog right down and shut off...to me it kinda sounds like theres build up in the carb but im not sure..
fluds easy too..
anyone know what my probleme is?
fluds easy too..
anyone know what my probleme is?
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#8
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Idle/starting probleme need help!
okay i have a 84 12a...car wont start sometimes, turns over but wont fire up, ive changed sparkplugs and all stayed the same...so i thought maybe the fuel filters clogged, that was not my probleme so i have no clue what the problem is now...
when it dose start....keep in mind its hard to start...as long as you pumped gas before your started it will run for a minute or 2...if you keep pressing the throttle,then all a sudden it dies...
anyone have a clue on what this may be?
when it dose start....keep in mind its hard to start...as long as you pumped gas before your started it will run for a minute or 2...if you keep pressing the throttle,then all a sudden it dies...
anyone have a clue on what this may be?
#12
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i just went and looked at the afterburn hose, it seems to be fine
i also cant find anything in FAQ...its all about the forums nothing about engines...
i also cant find anything in FAQ...its all about the forums nothing about engines...
#13
Super Moderator
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You are looking in the wrong FAQ. You need to look ing the 1st gen FAQ.
https://www.rx7club.com/1st-generation-specific-1979-1985-18/1st-gen-rx-7-faq-page-237777/
https://www.rx7club.com/1st-generation-specific-1979-1985-18/1st-gen-rx-7-faq-page-237777/
#14
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Need someones help,who knows....
Hey, i have a 84 12a 4bbs...im having starting/idle problemes. i have asked before i was told check vaccum hoses compression and do a tune up.. none fixed my probleme...im back at where i started
trouble starting...kinda starts when it wants...
if you start it...it idles at like 250rpm....not good...
you have to keep giving it gas or it will die...
it sometimes boggs down and dies?
it is not the afterburn hose, i have checked
compression is good
this is really starting to annoy me
trouble starting...kinda starts when it wants...
if you start it...it idles at like 250rpm....not good...
you have to keep giving it gas or it will die...
it sometimes boggs down and dies?
it is not the afterburn hose, i have checked
compression is good
this is really starting to annoy me
#15
Old Fart Young at Heart
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Download the FSM and carb manual from the following link.
http://www.wankel.net/~krwright/cars/rx7/manuals.html
Follow the trouble shooting procedure, then get back to us with a better description of what's happening. In the mean time, what work/maintenance has been done, how old is the fuel filter, are the plugs fresh, are you using the choke, etc..
http://www.wankel.net/~krwright/cars/rx7/manuals.html
Follow the trouble shooting procedure, then get back to us with a better description of what's happening. In the mean time, what work/maintenance has been done, how old is the fuel filter, are the plugs fresh, are you using the choke, etc..
#19
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i am sure its 250 rpm and not 2500, fuel pressure is fine, its gotta be a vac probleme thats the only thing else i can think of, new plugs and yes im useing the choke...
#22
Lives on the Forum
Alright....
If your engine idles at 250 rpms, then you probably don't have a vacuum leak...
Have you tried adjusting the idle speed? It should idle at about 850, so if you fix that issue you might solve the rest of it too...
.
If your engine idles at 250 rpms, then you probably don't have a vacuum leak...
Have you tried adjusting the idle speed? It should idle at about 850, so if you fix that issue you might solve the rest of it too...
.
#23
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Alright....
If your engine idles at 250 rpms, then you probably don't have a vacuum leak...
Have you tried adjusting the idle speed? It should idle at about 850, so if you fix that issue you might solve the rest of it too...being sucked.. im gunna try fuel filter but the one on there looks pretty new
.
If your engine idles at 250 rpms, then you probably don't have a vacuum leak...
Have you tried adjusting the idle speed? It should idle at about 850, so if you fix that issue you might solve the rest of it too...being sucked.. im gunna try fuel filter but the one on there looks pretty new
.
#24
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12a probleme expert help please..
i have either a vac leak or shutter vavlue is gone or something..
my car is hard to start wont idle, batorageckfires when decellerating and makes a weird noise sometimes when trying to start almost like a really low squeeking
new wire plugs cap rotor air filter engine treatment new oil and new coolants after i flushed them thats all ive done to the car since it has came out of storage..
my car is hard to start wont idle, batorageckfires when decellerating and makes a weird noise sometimes when trying to start almost like a really low squeeking
new wire plugs cap rotor air filter engine treatment new oil and new coolants after i flushed them thats all ive done to the car since it has came out of storage..
#25
Old Fart Young at Heart
iTrader: (6)
You can't have a vacuum leak and idle around 250 rpm. Vacuum leaks cause a high idle that cannot be brought down. period. Backfiring on decel can be caused by a a bad decel valve, exhaust leaks, timing may be off or carb is running lean.
Download the carb manual and go through the troubleshooting section step by. You're not providing enough info to diagnose your problem. If you have haven't changed the fuel filter yet, do so or quit wasting everyone's time. If changing the filter shows no improvement, there may be a restriction somewhere in the fuel supply system or the carb may need rebuilt. Start with draining the the tank, cleaning/blowing out the lines and the internal filter screens. 1 screen is at the end of pickup tube inside the tank, 1 under each banjo bolt in the supply lines to the carb and 1 under each needle/seat.
If this car has sat for an extended period of time, a carb rebuild is pretty much mandatory. If you need the carb rebuilt, PM me. I may be a butthead, but I do do good work.
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Download the carb manual and go through the troubleshooting section step by. You're not providing enough info to diagnose your problem. If you have haven't changed the fuel filter yet, do so or quit wasting everyone's time. If changing the filter shows no improvement, there may be a restriction somewhere in the fuel supply system or the carb may need rebuilt. Start with draining the the tank, cleaning/blowing out the lines and the internal filter screens. 1 screen is at the end of pickup tube inside the tank, 1 under each banjo bolt in the supply lines to the carb and 1 under each needle/seat.
If this car has sat for an extended period of time, a carb rebuild is pretty much mandatory. If you need the carb rebuilt, PM me. I may be a butthead, but I do do good work.
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