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

High Temp Lower RPM

Thread Tools
 
Search this Thread
 
Old 06-18-04, 04:22 PM
  #1  
trainwreck

Thread Starter
 
BigJim's Avatar
 
Join Date: Jun 2003
Location: Lake, Michigan
Posts: 1,725
Likes: 0
Received 1 Like on 1 Post
High Temp Lower RPM

Ok when my temp is righ ton the Mark for runnign temp my idle is aroun 900. As my temp passes that mark, by small ammounts, my idle becomes increasingly lower. Infact today, it stalled. It was not overheating, the mark was less than a cm past the running temp mark. But my idle just went down and down and down. Now if i drive the car at hight speeds nad cool it down my idle will come back to 900 but once its warm its back down. anyone know how to fix
Old 06-18-04, 04:47 PM
  #2  
trainwreck

Thread Starter
 
BigJim's Avatar
 
Join Date: Jun 2003
Location: Lake, Michigan
Posts: 1,725
Likes: 0
Received 1 Like on 1 Post
oh yea its an se, with fuel injection
Old 06-18-04, 07:30 PM
  #3  
Airflow is my life

 
Rx7carl's Avatar
 
Join Date: Aug 2002
Location: Orlando, Fl
Posts: 6,736
Likes: 0
Received 2 Likes on 2 Posts
High speed= good temp
Low speed/idling = temp rise means your fan is not pulling enough air thru the radiator. Either the fan clutch isint working right or your missing shrouding allowing air to bypass the radiator. At speeds above 30mph, the fan becomes useless as the impinging air is enough to keep the engine/radiator cool.
Old 06-18-04, 09:37 PM
  #4  
trainwreck

Thread Starter
 
BigJim's Avatar
 
Join Date: Jun 2003
Location: Lake, Michigan
Posts: 1,725
Likes: 0
Received 1 Like on 1 Post
yes, i kno i have a slight heating problem, buy why does my idle get lower and lower? Also are you working on a carb setup for a street ported 6 port?
Old 06-19-04, 06:03 PM
  #5  
Airflow is my life

 
Rx7carl's Avatar
 
Join Date: Aug 2002
Location: Orlando, Fl
Posts: 6,736
Likes: 0
Received 2 Likes on 2 Posts
Couldnt say for sure. Fix the temp rise problem and see what happens. Well I'm working on a carb that flows more, which should be suited for that. However the Sterlingcarb will work for you too. The biggest problem you'd have will be a proper manifold.
Old 06-25-13, 11:56 PM
  #6  
Full Member
 
Ah Teck's Avatar
 
Join Date: Jul 2012
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts
Clean you idle valve first !
Old 06-26-13, 12:28 AM
  #7  
Full Member
 
Ah Teck's Avatar
 
Join Date: Jul 2012
Posts: 60
Likes: 0
Received 0 Likes on 0 Posts
Have check the engine light codes ?
Old 06-26-13, 10:35 AM
  #8  
Out In the Barn


iTrader: (9)
 
KansasCityREPU's Avatar
 
Join Date: Mar 2005
Location: KC
Posts: 6,137
Received 1,034 Likes on 818 Posts
Not sure you'll get an answer on a thread that is 9 years old. You had to dig to find this.
Old 06-26-13, 11:41 AM
  #9  
Rotary Freak

iTrader: (19)
 
RX-7 Chris's Avatar
 
Join Date: Oct 2007
Location: Colorado Springs, CO
Posts: 2,014
Likes: 0
Received 0 Likes on 0 Posts
On my SE, I was having a problem with vapor lock when at low speeds. Heat would build up under the hood and cause the car to stall. Part of the problem is that the injectors are between the intake and the motor. I ended up wrapping the fuel lines under there with heat tape. I also had to replace the cat because they were clogged and building extra heat.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
C. Ludwig
Single Turbo RX-7's
49
01-30-19 06:31 AM
DC5Daniel
2nd Generation Specific (1986-1992)
60
08-11-16 10:00 PM
stickmantijuana
Microtech
30
04-23-16 06:37 PM
immanuel__7
2nd Generation Specific (1986-1992)
89
09-05-15 10:23 AM
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM



Quick Reply: High Temp Lower RPM



All times are GMT -5. The time now is 08:11 AM.