2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:

rx-7 wont start

Thread Tools
 
Search this Thread
 
Old 01-24-02, 08:34 PM
  #1  
Junior Member

Thread Starter
 
Join Date: Jan 2002
Location: highland
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
rx-7 wont start

my damn 86 wont start. i just replaced the motor and it wont start. i have spark and i have fuel getting to the lugs. when i pull them out they are soaked. it just cranks and cranks but wont catch. any help would be greatly appreciated.
Old 01-24-02, 08:59 PM
  #2  
Banzai Racing

 
BlueTII's Avatar
 
Join Date: Aug 2001
Location: Indiana
Posts: 2,632
Likes: 0
Received 3 Likes on 3 Posts
I t sounds like it is flooded,
Pull the EGI Comp fuse, push the gas pedal to the floor and crank it over for about 10 seconds. Then put the fuse back in, and crank it normally with out touching the gas. the first 3 steps should unflood it.
Old 01-24-02, 09:08 PM
  #3  
Senior Member

 
Join Date: Mar 2001
Location: dinwiddie VA
Posts: 652
Likes: 0
Received 0 Likes on 0 Posts
Red face

if that dont work may want to try the ole ATF trick that will work for sure just pull the plugs dump a little ATF in the holes and VRRRMMM stat right upjust smoke like hell for bout 15 min or so by the way welcome to the forum
Old 01-24-02, 09:18 PM
  #4  
Junior Member

Thread Starter
 
Join Date: Jan 2002
Location: highland
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
thanks ill try that. oh and blueTII the fuse part didnt work. it acted like it wanted to start but just wouldnt catch. i just got done putting this motor in cuz i blew up the last one. i really want to get this thing running cuz theres a few hondas that id like to take to the mountains. BTW does anyone know any idependent shops in the Southern California area to take my car to when i dont have time to fix whatevers wrong?
Old 01-24-02, 09:19 PM
  #5  
Full Member
 
Mobius's Avatar
 
Join Date: Dec 2001
Location: FK EPIC FU
Posts: 228
Likes: 0
Received 0 Likes on 0 Posts
Re: rx-7 wont start

Originally posted by racingbeat86
my damn 86 wont start. i just replaced the motor and it wont start. i have spark and i have fuel getting to the lugs. when i pull them out they are soaked. it just cranks and cranks but wont catch. any help would be greatly appreciated.

Okay did you swap the entire engine out for a new one?

Or.

Rebuild it?


Oh here we go again.

1) Engine turns very very sluggishly over. Like the starter has a hard time turning the flywheel because its too stiff.

Possible Solution: (You don't wanna Know).

2) Engine turns easily and Nothing happens at all.

Possible solution: Correct Timing. Make sure you have Lead #1 from coil going to the lead #1 sparkplug and lead #2 going to Lead #2 sparkplug and trail #1 etc...

Also, make sure you tighten down the battery terminals with a wrench. Don't just assume their tight cause your hand says so.

MAF located on your airbox is not plugged in or plugged in incorrectly ETC. Also, you did put the crank angle sensor in correctly? You can't just simply put this in and say "Its go Time".

4.) Engine turns and turns and turns, cows come home and starter is fried .

Possible Solution: Get an Exorcist, certified mystic or baseball bat. A good rotary mechanic will work too. Then proceed to remove the offending Demons from your engine.


Do know how to prime the fuel lines? If so. Pull the eng INJ fuse in your main fuse box so that it won't flood your engine over and over, again. And never crank for longer than 10 seconds.

Oh yeah, fuses. Check all related to engine.

Good luck
Old 01-24-02, 09:35 PM
  #6  
Junior Member

Thread Starter
 
Join Date: Jan 2002
Location: highland
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
thanks. ive tried steps 1-4 and still nothing. the motor came from a shop. i didnt have it rebuilt. the shop deals mainly with j-spec but i know the guy and he found this motor for me. the motor ran in tha last car it was in. it only has about 80k miles in the motor. tommarrow m gonna try the ATF trick gain. i talked to some guy last night that said to put it in through the throttle body but i didnt cuz i didnt think it would make it to the rotors. thanks for all the help guys. this is my first rx-7 and i loved it for the first month i had it then it blew and has been down for about 4 months
Old 01-25-02, 01:10 AM
  #7  
Rotary Freak

 
hanman's Avatar
 
Join Date: May 2001
Location: Peoria, IL
Posts: 1,779
Likes: 0
Received 0 Likes on 0 Posts
It really all comes down to three things, as I am sure that you know:
1. Compression, does it have any? enough? flooded? Pull the plugs and find out.
2. Spark, does it have any? pull the plug wires/plugs and find out.
3. Fuel/Air for combustion, does it have any?

I know that this is an oversimplification, but, really unless you get logical and check all these possibilities you won't ever know.
just my opinion,
hanman
Old 01-25-02, 04:11 AM
  #8  
Hks Ownz Me (

 
importboi22's Avatar
 
Join Date: Dec 2001
Location: corona,CA
Posts: 1,489
Likes: 0
Received 0 Likes on 0 Posts
make sure your plugs arent fouled!!! i tried starting mine for awhile with fouled plugs it wouldnt do it, then i switched them out and it started right on the dot
Old 01-25-02, 04:18 PM
  #9  
Junior Member

Thread Starter
 
Join Date: Jan 2002
Location: highland
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
Angry

if my motor only has 30psi of compression is it bad? cuz its only putting out 30psi. i hate all this **** just spent the time putting the motor in to find out its bad. is there anyway to test them accurately out of the car? let me know cuz the guys or gonna get me a new motor as soon as possible.
Old 01-25-02, 05:52 PM
  #10  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
I went through this before

This is exactly what I went through, and here is what got me started after 5 days of trying.

1. Make sure timing is right. Connect an inductive timing light to L1 and point it at the timing point. Have someone else crank. Make sure that the Yellow dot comes up when the light flashes.. Its not exact, but it gets you in the ball park

2. Change your plugs and use NGK!! (but dont install them yet!!!)

3. Do the ATF trick, but inject the ATF into the oil injection hose. Do this by looking at the throttle body\from the front of the car. There are 3 vacuum hoses that should be pointing at you in a group. Its the LARGER hose you want. Put about 1/3 cup in.

3. With plugs still removed, crank the FU-K outta the motor. Make sure you floor it too. What I did was count to 15.

4. Go have a beer or a coke or whatever and forget the car for about 24 hours.

5. Put the new plugs in , and make sure you got them right. And connect the wires back up (maje sure you got them right too).

6. Ensure the WHOLE air intake from the airbox back is hooked up!!! And make sure the electrical connector on the AFM is hooked up.

7. Crank away, DONT HIT THE GAS!! Be ready for the EPA or the Fire Department to come, its gonna smoke like holy hell...

Good luck...

Rat
Old 01-25-02, 05:53 PM
  #11  
HAILERS

 
HAILERS's Avatar
 
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes on 19 Posts
30 is in the NOT WORTH A DARN catagory. Ain't never, never, ever gonna start. Only hope is to put some oil down the throttle body, maybe a cup at first, rotate the engine without the lead plugs, put the lead plugs back in, and give it a try. Its a slim hope that after it starts that you will regain the compression. Right now the rotors have been wiped of all oil and therefore you have lost a group of compression and/or the compression was never ever there in the first place. Minimum compression to the best of my lazy memory is 70psi. And your lucky to get one of those to start at all, and if they do they flood out at the very presence of any gasoline.
Old 01-25-02, 05:54 PM
  #12  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
YOu may have to disconnect the fuel pump to clear gas also...Mine would flood easily for the first day or so...but its getting better all the time.
Old 01-25-02, 05:56 PM
  #13  
Alcohol Fueled!

iTrader: (2)
 
J-Rat's Avatar
 
Join Date: Jan 2002
Location: Hood River oregon
Posts: 11,093
Likes: 0
Received 2 Likes on 2 Posts
That sound about right Hailers? oh...I havent gotten the fuel pressure readings yet, my fuel gauge has Audi/VW adapters...I need to get different ones.
Old 01-25-02, 09:02 PM
  #14  
Junior Member

Thread Starter
 
Join Date: Jan 2002
Location: highland
Posts: 12
Likes: 0
Received 0 Likes on 0 Posts
thanks for the help guys but i allready pulled the motor and now the shop is giving me a new one plus $300 back for my truobles. thats the best part. anywayz ill let you guys know what happens with this next one.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
sherff
Adaptronic Engine Mgmt - AUS
9
02-24-19 12:09 PM
The1Sun
New Member RX-7 Technical
9
03-18-18 11:08 PM
1993fd3sracer1
3rd Generation Specific (1993-2002)
29
10-13-15 01:57 PM
1993fd3sracer1
1st Generation Specific (1979-1985)
20
09-07-15 11:50 AM



Quick Reply: rx-7 wont start



All times are GMT -5. The time now is 02:15 PM.