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RX-7 1st Gen Specific (1979-85) RX-7 1979-85 Discussion including performance modifications and technical support sections |
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05-01-2010, 02:10 AM | #1 |
1stGen 4 a 1st Rx
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dead FB; engine won't spin
well just any other night after work waitin for the manager 2 come out and while i was waitin. something poped in my car and it locked down. i figured out it wasnt the starter. IT mite be a possibilty of the throw out bearing since it was going bad but it still rolls and takes gear. if thats not it then its gotta be internal. Any ideas, its a 12a with 146k on it stock. any suggestions as 2 the problem would be great but will be starting the tear down soon once i get it home. just 2 say ahead of time this is my first rotary so its ok 2 talk 2 me like an idiot b/c i probly wont understand all of the technical lingo
Last edited by Phoenix7; 05-28-2010 at 02:44 PM.. Reason: edited title to reflect content |
05-01-2010, 11:09 AM | #2 |
RCC Contributor
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Ouch! With the tranny out of gear, can you rotate the motor by hand?
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"Learn from the past, or it will become your future...." '85 GS 12a + LSD/Sterling carb/Respeed coilovers/Respeed front swaybar/Respeed adj. rear spring perches/Illuminas/Bilsteins on rear AutoX vids @ http://www.youtube.com/user/Kentetsu1 |
05-01-2010, 12:56 PM | #5 |
1stGen 4 a 1st Rx
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oil level and coolant both are good. but dad said the oil smelt burnt.....idk but he's been building cars for over 30 yrs but not rotarys but still i had the oil changed 1200 miles ago.
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05-01-2010, 02:04 PM | #6 |
RCC Contributor
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what kind of oil do you run, did you see in copper in the oil?
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85 rx7 gsl-se - AA tags/ never ending project will never run |
05-01-2010, 03:04 PM | #7 |
1stGen 4 a 1st Rx
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idk about the copper in the pan but there wasnt any in the oil on the dipstick. it was Penzoil conventional 10w-40. IT's still sittin @ work not home
Last edited by 85'12a-Blake; 05-01-2010 at 03:07 PM.. |
05-01-2010, 04:41 PM | #8 |
tumor-syphilis-itis-osis
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time for a new engine, unless your throw out bearing wore down and broke some teeth out of your pressure plate that wedged themselves into the flywheel. its happened to me
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82 300d 82 Gsl 84 b2200 Diesel 88 gxl |
05-01-2010, 06:39 PM | #9 |
1stGen 4 a 1st Rx
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well thats kinda what my dad said b/c the throw out was gettin pretty loud but didnt have the cash for one and a clutch 2. but we will see soon i just hope if it is the motor that its not too destroyed inside
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05-01-2010, 10:11 PM | #10 |
tumor-syphilis-itis-osis
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if the motor is locked up at least one rotor will be totally demolished 100% guaranteed.
a good way to figure out whether or not its the clutch- the motor will spin backwards so through a socket on the front and try
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82 300d 82 Gsl 84 b2200 Diesel 88 gxl |
05-04-2010, 07:17 AM | #12 |
1stGen 4 a 1st Rx
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well i took a breaker bar 2 it this morning and it broke free but i didnt try a compression stroke. So hopefully that means its the throw out bering and clutch and all that fun stuff.
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05-04-2010, 07:39 PM | #14 |
1stGen 4 a 1st Rx
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well rlly the only noise i heard when it broke free was me fallin on my A** and the wrench falling.....but it feels like it has compression....so you think its a good idea 2 try and start it b4 i tear it down and see?
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05-04-2010, 07:45 PM | #15 |
RCC Contributor
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Pull the trailing plugs one at a time, have somebody turn the motor over while you listen to the air puffs. Listen for an absence of puffs, or for a different rhythm between front/rear.
Good luck... |