wont idle runs poorly
#1
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
wont idle runs poorly
my 82s 12a starts but it wont idle at all and i have to give it gas to keep it above 1100 rpm or it dies. when running it sounds like a lawnmower and has terrible throttle response. accelleration is poor as if it is working really hard. the rats nest is connected correctly and the carb was rebuilt about a year and a half ago. it ran fine a week ago, but i went through some swapping hassles ( ended up swapping back ) and now it runs like crap. any suggestions?
#5
Round and Round
iTrader: (10)
As mazdaverx713b said, check the hose represented by the red line in this picture. The bottom (where you can't see it) tends to melt over time as it is close to and directly over the exhaust. It is between th e rear of the carb and the firewall.
http://intertron.com/ron/images/carb/c6.jpg
Make sure leading and trailing plugs are fireing and correctly connected. Lower are leading, Top are trailing. 1 is front, 2 is back.
http://intertron.com/ron/images/carb/c6.jpg
Make sure leading and trailing plugs are fireing and correctly connected. Lower are leading, Top are trailing. 1 is front, 2 is back.
#6
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
shutter valve is brand new out of the box ( i had a spare lying around from last time it went out ) afterburn hose is connect4ed and seated properly, spark confirmation from all 4 plugs
#7
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
here is some video of what im dealing with the first one is the rats nest and vac system and the second is the car running. i jsut uploaded them so it may take a few minutes for the conversion.
http://www.youtube.com/watch?v=-NoOOmYEJy4
EDIT: still waiting for video 2
http://www.youtube.com/watch?v=-NoOOmYEJy4
EDIT: still waiting for video 2
Last edited by rotornoob; 07-14-07 at 11:32 AM.
Trending Topics
#10
Nikki-Modder Rex-Rodder
Join Date: Feb 2001
Location: Trying to convince some clown not to put a Holley 600 on his 12a.
Posts: 2,890
Likes: 0
Received 14 Likes
on
6 Posts
You may have a combination problem of a vacuum leak and a timing issue.
Trailing and leading switched?
Ignitor shot or has dirty contacts?
Brake booster hose is tight?
Describe this "swapping" thing.
Trailing and leading switched?
Ignitor shot or has dirty contacts?
Brake booster hose is tight?
Describe this "swapping" thing.
#11
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
i swapped my carb from the 82 over to the 83 and tried to get it running only to find out that the engine on the 83 is toasted so i swapped the carb back to the 82. while swapping i made sure to hook up the linkages correctly using my spare carb and hooking up the linkages one at a time as i disconnected them so that i didnt mix them all up. all vac lines were replaced with new as well as the shutter valve.
all vac lines are tight including brake booster and ignition contacts are clean. which coil is for leading and which is for trailing? leading is up front nearest the header panel correct?
all vac lines are tight including brake booster and ignition contacts are clean. which coil is for leading and which is for trailing? leading is up front nearest the header panel correct?
#14
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
ok new plugs are in and i double checked my wires and they are all hooked up correctly. symptoms are still the same, i searched for vac leaks with carb cleaner and nothing changed, searched for vac leaks on the forum and found 80 million ( exagerated) post saying "help i have a vac leak" and tons of replies saying "remove the rats nest" which i cant do because im in CA. i have checked the usual suspects for vac leaks and replaced them on good principle and still no change.
when i swapped the carb i did not remove the spacer. rats nest tubes are brand new, brake booster is tight, cant really check timing because it wont idle but it was dead on when i pulled the carb and i didnt play with it. checked ignitor connections and they are clean, coil connections are clean.
when i swapped the carb i did not remove the spacer. rats nest tubes are brand new, brake booster is tight, cant really check timing because it wont idle but it was dead on when i pulled the carb and i didnt play with it. checked ignitor connections and they are clean, coil connections are clean.
#15
emissions r teh sux
Thread Starter
iTrader: (2)
Join Date: Dec 2005
Location: Stockton Ca
Posts: 888
Likes: 0
Received 0 Likes
on
0 Posts
my apologies for the last post here, i was a bit frustrated. the vehicle is now running. as initially suggested it is the shutter valve. looks like i will be going to the dealer tomorrow and asking for a new part. for the meantime i have it blocked off with a bullet shell ( 7.65mm mauser already fired with the primer left in it ) and a cap on the air cleaner unit. thank you everyone for helping me out, and i once again apologize for my post above, sometimes i seem to get frustrated easily....im sorry
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM
ncds_fc
New Member RX-7 Technical
1
08-15-15 10:06 AM