New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

engine issues

Thread Tools
 
Search this Thread
 
Old Dec 5, 2015 | 04:16 AM
  #1  
rx71985coupe's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2015
Posts: 10
Likes: 0
From: Dallas/Fortworth
engine issues

the car died from being started and wont start. I was trying to bring back from the dead from being started in several years. Can a rotary sieze up? This would be my first RX anything not knowing much about them except no pistons. The engine had oil, replaced fuel pump and starter. any help much appreciated

Last edited by rx71985coupe; Dec 5, 2015 at 04:18 AM.
Reply
Old Dec 5, 2015 | 12:14 PM
  #2  
KansasCityREPU's Avatar
Out In the Barn
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (9)
 
Joined: Mar 2005
Posts: 6,668
Likes: 1,238
From: KC
Do you have spark on all plug and gas delivery? Carb or FI? Does the engine spin over? How old is the fuel?
Reply
Old Dec 5, 2015 | 11:53 PM
  #3  
rx71985coupe's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2015
Posts: 10
Likes: 0
From: Dallas/Fortworth
I haven't gotten to the spark plugs. it is Carb. the engine stopped turning. I had put new fuel in the tank mixed with some of the old and replaced the fuel pump (it was not working.)
The car is a 1985 GS model. I think its a FB 1st gen. I have to look. My first RX.... My first Mazda

Last edited by rx71985coupe; Dec 6, 2015 at 02:50 AM.
Reply
Old Dec 6, 2015 | 10:49 AM
  #4  
roTAR needz fundZ
Tenured Member 15 Years
iTrader: (1)
 
Joined: Aug 2002
Posts: 2,614
Likes: 31
From: Freeland, MI
Ok, EVERYONE has a different definition of the word "turning over". Some people think it means it won't start but will roll over, and others think vice versa, so which is the problem? The engine isn't spinning over? Or it is and it won't start
Reply
Old Dec 6, 2015 | 10:51 PM
  #5  
rx71985coupe's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2015
Posts: 10
Likes: 0
From: Dallas/Fortworth
its not spinning, moving. You hear the starter solenoid click. My first rotary. I know V's and inline. have to say, an awesome experience. I haven't been able to drive it yet. inherited and been trying to bring back from the dead.

Last edited by rx71985coupe; Dec 6, 2015 at 10:57 PM.
Reply
Old Dec 6, 2015 | 10:59 PM
  #6  
heynoman's Avatar
heynoman
Tenured Member 15 Years
iTrader: (5)
 
Joined: Jul 2009
Posts: 469
Likes: 1
From: Illinois
Charge the battery and check your grounds.
Reply
Old Dec 6, 2015 | 11:30 PM
  #7  
rx71985coupe's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2015
Posts: 10
Likes: 0
From: Dallas/Fortworth
battery was fully charged. Its also old, maybe not able to hold a full charge very long? Head lights and every indicator comes on.
Reply
Old Dec 7, 2015 | 07:28 AM
  #8  
roTAR needz fundZ
Tenured Member 15 Years
iTrader: (1)
 
Joined: Aug 2002
Posts: 2,614
Likes: 31
From: Freeland, MI
The rotary is no different than a piston engine except it does whirly do's instead of uppie downies

Make sure you can turn the engine over by hand just like any engine thats been sitting
Reply
Old Dec 7, 2015 | 09:04 AM
  #9  
RotaryEvolution's Avatar
Sharp Claws
Tenured Member 15 Years
iTrader: (30)
 
Joined: Oct 2003
Posts: 5,107
Likes: 50
From: Central Florida
Originally Posted by lduley
Make sure you can turn the engine over by hand just like any engine thats been sitting
+1

if you can't turn the engine over with a ratchet then it is seized and you should stop throwing money at random parts. a new fuel pump, or fuel filter, or transmission oil, or oil change, or new fuel, or muffler isn't going to make it go "rrrr, rrrrr, rrrrr, rrrrr"

yes it is possible to unseize an engine, but if the spark plugs have rust on them then your engine is game over, remove the plugs and inspect them for rust before doing anything else. if they're rusty then your engine is toasted. if there's no rust, then pump some ATF into the plug holes and down the carb and let it sit for a few days, then try rocking the engine main bolt back and forth with a long breaker bar.
Reply
Old Dec 8, 2015 | 08:44 PM
  #10  
KansasCityREPU's Avatar
Out In the Barn
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (9)
 
Joined: Mar 2005
Posts: 6,668
Likes: 1,238
From: KC
Should the engine be in neutral when trying to rotate via the main pulley bolt?
Reply
Old Dec 8, 2015 | 09:42 PM
  #11  
RotaryEvolution's Avatar
Sharp Claws
Tenured Member 15 Years
iTrader: (30)
 
Joined: Oct 2003
Posts: 5,107
Likes: 50
From: Central Florida
Originally Posted by KansasCityREPU
Should the engine be in neutral when trying to rotate via the main pulley bolt?
i figured that would be self explanatory.
Reply
Old Dec 12, 2015 | 02:41 AM
  #12  
rx71985coupe's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2015
Posts: 10
Likes: 0
From: Dallas/Fortworth
thank you all! Will See about rust and turning engine with breaker bar. hopefully no transmission oil is in the future for the engine....
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Hughes.M
New Member RX-7 Technical
3
Dec 4, 2015 03:51 AM
jtlenny
Introduce yourself
2
Dec 1, 2015 03:39 AM
LARRYWEATH
General Rotary Tech Support
0
Nov 29, 2015 04:02 PM




All times are GMT -5. The time now is 01:25 AM.