1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

stalling problem

Thread Tools
 
Search this Thread
 
Old Mar 2, 2007 | 07:20 PM
  #1  
bigandfluffy's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Mar 2007
Posts: 48
Likes: 0
From: Seattle Washington
stalling problem

ive been visiting the site over the past few days to help me with a motor swap for my 1st gen its a 12a, and i got the motor in but for some reason when going up hill and when i tap the gas it stalls. would anyone be able to help me?
Reply
Old Mar 2, 2007 | 07:58 PM
  #2  
-=DanK=-'s Avatar
Full Member
Tenured Member 05 Years
 
Joined: Sep 2006
Posts: 177
Likes: 0
From: Hickville, Oregon
Well have you tried the basic tune-up? Plugs, wires, cap and rotor, fuel filter, air filter, all fluids replaced, and check the battery terminals and grounds.
If you have already done that, then we need a little more information to help you.
I would also be checking for clogged cats, old nasty dirty fuel lines, or a clogged/dirty carb. You could also try running a full can of Seafoam through your 1/4 full gas tank, it will help clean your fuel system and help your engine internals work better.
Reply
Old Mar 2, 2007 | 10:18 PM
  #3  
bigandfluffy's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Mar 2007
Posts: 48
Likes: 0
From: Seattle Washington
well.. we origanaly had it with no vacume lines conected.. all of them pluged up.. then i conected em.. but they all jery rigged on ther.. but they all basicly go the same place.... but it still does the same thing..

the car will rev up mildly ok if you play with the choke.. but once it warms up it will just die when you give it gas..

the thing has brand new
cap, rotor, fuel pump, altenater, battery, and a new pair of coils :P

i know what to do on regular 4 cils and v8s.. but this is a heck of alot differant
Reply
Old Mar 2, 2007 | 10:24 PM
  #4  
Rogue_Wulff's Avatar
Too old to act my age
Tenured Member 05 Years
 
Joined: Feb 2005
Posts: 3,164
Likes: 0
From: Tulsa, Ok.
Originally Posted by bigandfluffy

i know what to do on regular 4 cils and v8s.. but this is a heck of alot differant
Everything outside of the engine, is the same as any other car.
Remove the fuel line from the carb, place container under it, and turn on the key. See what the fuel flow is. FSM calls for around 1L per minute.
If it isn't flowing near that much, check the filter (just in front of the rear axle, left side of car), as it prolly needs replacing.
Reply
Old Mar 2, 2007 | 11:57 PM
  #5  
shnakes's Avatar
Newbie
 
Joined: Mar 2007
Posts: 2
Likes: 0
From: washington
ok.. when you have the key on the on position it kinda dribbles out... a tad bit slower then if it was gravity fed.. and there is no fuel filter on it.. i took that out right aftetr the new fuel pump got put on

(im bigandfluffys freind. i did all the work :P)
Reply
Old Mar 3, 2007 | 12:47 AM
  #6  
trochoid's Avatar
Old Fart Young at Heart
Tenured Member 10 Years
iTrader: (6)
 
Joined: Apr 2004
Posts: 15,145
Likes: 8
From: St Joe MO
Removing the filter, and not replacing it is a big mistake. Our fuel tanks tend to be old and rusty. Not only will you plug up the carb and fuel lines, you can damage the pump, if you haven't already. It's a possibility that the pickup line in the tank if filling with rust too, even the fuel lines under the car. Do your fuel flow tet in the engine bay, then right after the pump to see if there's any difference.
Reply
Old Mar 3, 2007 | 01:52 AM
  #7  
bigandfluffy's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Mar 2007
Posts: 48
Likes: 0
From: Seattle Washington
told you we needed a filter >.>
Reply
Old Mar 3, 2007 | 02:19 AM
  #8  
trochoid's Avatar
Old Fart Young at Heart
Tenured Member 10 Years
iTrader: (6)
 
Joined: Apr 2004
Posts: 15,145
Likes: 8
From: St Joe MO
My biggest concern is you may have toasted the fuel pump by not running a filter, but hey, we all live and learn, often learn more from our mistakes, especially when they get expensive.
Reply
Old Mar 3, 2007 | 03:38 AM
  #9  
Man_in_black49464's Avatar
Rotary Freakazoid
Tenured Member 05 Years
iTrader: (1)
 
Joined: May 2006
Posts: 715
Likes: 0
From: Holland, Michigan/ Afganistan/ Iraq/ Itatly
one thing you can check is....
If you know anything about carb's is get a rebuild kit! or just crack the nikki open and see if the dip tank or jets have clogs!
Another thing?????Do you have enough gas in it so when your going up hill its not in the back of the tank????
Aslo do a compression test on it i have a feeling youll have very little compression in the rear rotor.
Reply
Old Mar 3, 2007 | 03:44 AM
  #10  
shnakes's Avatar
Newbie
 
Joined: Mar 2007
Posts: 2
Likes: 0
From: washington
i dont think the fuel pump is shot yet.. its only been runing filterless for about an hour total.. but i think the lines might be kinked.. ill check in a day or so :P
Reply
Old Mar 3, 2007 | 03:48 AM
  #11  
trochoid's Avatar
Old Fart Young at Heart
Tenured Member 10 Years
iTrader: (6)
 
Joined: Apr 2004
Posts: 15,145
Likes: 8
From: St Joe MO
Kinked lines are possible if you've made any changes to them. If you don't find any, start looking for fuel line clogs.

Since you're new to the forum, welcome to the Darkside. In my sig line is a link to the FSMs, carb manual, etc.. Download whatever you need.
.
.
.
.
.
Reply
Old Mar 3, 2007 | 03:26 PM
  #12  
Rogue_Wulff's Avatar
Too old to act my age
Tenured Member 05 Years
 
Joined: Feb 2005
Posts: 3,164
Likes: 0
From: Tulsa, Ok.
trochoid is right, running filterless is a mistake on these cars, especially if it has been sitting.
Unhook the fuel lines (supply and return) from both ends, blow compressed air thru them. When you see all the crud that comes out, you'll agree about filter.
I also reccomend adding a second filter just before the carb, in addition to the stock location, just before the pump.
Even though the pump is new, check to see if it has gotten partly clogged with crud. I have seen a new pump clog up in just a few minutes time.
Reply
Old Mar 6, 2007 | 08:13 PM
  #13  
bigandfluffy's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Mar 2007
Posts: 48
Likes: 0
From: Seattle Washington
mmk

alright, ill go get some new flters as soon as i get my next check and ill check the flow to see if im getting the 1L a min, i realy wana get this car runing good
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
toplessFC3Sman
2nd Generation Specific (1986-1992)
6
Mar 20, 2018 01:54 PM
The1Sun
1st Generation Specific (1979-1985)
7
Sep 18, 2015 07:13 PM
xXBrendanXx
Power FC Forum
6
Sep 17, 2015 10:10 AM
REX7&Z32TT
New Member RX-7 Technical
5
Sep 9, 2015 05:16 AM
Steven_McKinley
General Rotary Tech Support
12
Sep 5, 2015 10:48 AM




All times are GMT -5. The time now is 08:10 AM.