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

HELP!!! blown motor?

Thread Tools
 
Search this Thread
 
Old Dec 18, 2004 | 12:30 AM
  #1  
Jester's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Jun 2003
Posts: 94
Likes: 0
From: Wichita, KS
HELP!!! blown motor?

Ok, so we had some people doing sideing on our house the other day and I had to move my car. I moved it out into the street, no big deal. When I went to t ry to start it to go to work, it wouldnt' start. Figured it was flooded and didn't have time to deal with it so I took another car. When I got home at night, I tried to unflood it and couldn't get it to. I thought then it was the gear on the starter wasn't connecting with the flywheel. I found out that wasn't it either because the fan and belts turned, so the engine must be turning. So I did a compression test and, oh ****. I didn't get anything, like, I don't remember any bounces at all. Now my question is.... with no bounces, wouldn't it be weird for all my seals to blow at once? Is there anything else this can be? I head that the FSM sa ys to do a compression test, it has to spin at 250 RPM's, how do I confirm that its making it to 250 RPM? Is my engine really blown? I did a compression test about 4 months ago and got an all around compression of about 100 in both rotors and all even bounces. Thanks in advance for the help.
Reply
Old Dec 18, 2004 | 12:35 AM
  #2  
rs_1101's Avatar
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: May 2004
Posts: 1,088
Likes: 0
From: OC
u held the throttle down right? during the comp test?.. it would be very strange to lose two seals at the same time. its usually, that one seal shatters and takes out the other two in the same rotor, but both rotors is just damn unusual. do another test, not at night.. im sure you were prolly frantic when this went down.. i know i would be. this may sound dumb, but make sure the afms connected, that can cause no starting.. (happened to me, exact same story, except my motor wasnt blown)
Reply
Old Dec 18, 2004 | 12:38 AM
  #3  
Jester's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Jun 2003
Posts: 94
Likes: 0
From: Wichita, KS
I haven't tested the other rotor yet because I couldn't see in there and I dropped the spark plug wires so I wanted to be sure that I didn't mix those up when I put them back on so I'm waiting till tomarrow to before I check again. The throttle was all the way down yes. And I didn' tchek the AFM but thats not a bad idea, will do that, thank you
God I hope my motor isn't blown
Reply
Old Dec 19, 2004 | 12:07 AM
  #4  
Jester's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Jun 2003
Posts: 94
Likes: 0
From: Wichita, KS
Ok, so I worked on it a little today....... I did a compression test on the other rotor and it showed the exact same results. Tonight though, it seemed as if the compression did go up for some reason that is unknown to me. It went up to 50 psi tonight. That comforted me a little cause like rs1101 said, that would be just weird if they both went at the same time. I tried un-flooding it by takeing the leading plugs out, pulling both EGI fuses and cranking it over for bout 10 seconds. At first, a lot of white smoke came out of the holes, does that mean anything? Eventually, the smoke stopped. When I put it all back together and tried to start it, I thought once it was going to start, almost did but it didn't. I"m going to try putting some 20w50 oil in there sometime. I don't really know how, I wish I had some kind of syringe or soemthing so I could see how much was actually making it into the engine. Anyone know about how much I should put in there? Thoughts, questions, comments bout my results? Thanks
Reply
Old Dec 19, 2004 | 12:29 AM
  #5  
rs_1101's Avatar
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: May 2004
Posts: 1,088
Likes: 0
From: OC
just use a small spoon .. you only need 2 drops per seal.. odds are youll have plenty to go around. 50psi probably wont start man...
anyone have any ideas what would cause two massive apex failures at the same time?... was your filter hooked up right? maybe you inhaled a rock?
Reply
Old Dec 19, 2004 | 01:16 AM
  #6  
Jester's Avatar
Thread Starter
Full Member
Tenured Member 05 Years
 
Joined: Jun 2003
Posts: 94
Likes: 0
From: Wichita, KS
I've never moved it. I'll check it tomarrow, but I don't know any reason why it would have moved out of place. Two drops per seal.......... what if I get to much? is that harmful? btw, thanks a bunch for your continuing help!
Reply
Old Dec 19, 2004 | 01:18 AM
  #7  
RotaryResurrection's Avatar
Lives on the Forum
Tenured Member: 20 Years
Liked
iTrader: (8)
 
Joined: Oct 2003
Posts: 11,576
Likes: 27
From: Morristown, TN (east of Knoxville)
You can flood an engine to the point that it shows no compression on a gauge. Just dump quite a bit of atf in there and it'll come back alive...you might have to change your plugs as well, they gas foul easily.

BTW it is a cardinal sin to shut down a rotary that is not fully warmed up, this caused the flood you have now.

Get an handheld oil can or a larger gear oil pump and inject several squirts into each lower plughole...use a long hose with the pump to get down there without making a mess, or even a vacuum hose will work. IF the atf comes right back out teh hole, you need to rotate the engine some to move the rotor away from the hole, just grab a belt and turn it clockwise.
Reply
Old Dec 19, 2004 | 01:28 AM
  #8  
rs_1101's Avatar
Rotary Enthusiast
Tenured Member 10 Years
 
Joined: May 2004
Posts: 1,088
Likes: 0
From: OC
yea.. nothing wrong with adding too much oil.. it all ends up in the same place anyways.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
whinin
Introduce yourself
17
Mar 30, 2019 07:53 PM
doritoloco
New Member RX-7 Technical
7
Sep 5, 2015 12:41 PM




All times are GMT -5. The time now is 05:23 PM.