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

motor problem! Help! GSL-SE

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Old Mar 10, 2008 | 08:14 PM
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Exclamation motor problem! Help! GSL-SE

So when i got home tonight, i heard a clunking nosie so i parked it and left it running. i opend the hood and i hear this noise, its comparably to a rod knock sound. but i cant tell if its comming from the motor ot the echaust right in that area and its dark so i cant see if the exhaust is hitting somthing. do rotarys make and "knocking" nosie if they are about to blow? im kind of worried.. any one have any ideas before i panic about somthing that may be no big deal?
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Old Mar 10, 2008 | 08:29 PM
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From: eau claire
WTF gives are all 1st gens going to hell or what this is like the third one in two days!!!!
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Old Mar 10, 2008 | 08:31 PM
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Originally Posted by yetterben
WTF gives are all 1st gens going to hell or what this is like the third one in two days!!!!
so i take it thats not a good thing this noise is their?
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Old Mar 10, 2008 | 08:36 PM
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it really depends. If it indeed sounds like a rod knock that friggin loud than i would assume its about to kick it. I have never heard a rotary knock or really ping. I have been trying to get people to post videos of knocking pinging cars for awhile. Mine has a small ping at idle but i think its in the exhasut on my setup. But if its that loud its probally doomed post a video on photobucket or you tube with a link here!
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Old Mar 10, 2008 | 08:36 PM
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are we serious. First we have oh **** my carb is dead in like 8 threads yesterday and now its oh, **** my rotor has potentially spun a bearing!. I think everyone might wanna stop driving for like a couple days haha


yea read the "sounds like a rod knock" thread on the 1st page of the 1st gen forum.

too funny, but not really. Could be time for a rebuild, but seriously read that thread and we can determine more from the info you can provide after reading it.
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Old Mar 10, 2008 | 08:43 PM
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i would post a vid but my exhaust has major leaks and its hard to hear. when i drive it, it gets louder. =( spun bearing.. soo.. if thats the case, how long could she run for?
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Old Mar 10, 2008 | 08:48 PM
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is there any type of test i can do to find out anything in side is messed up?
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Old Mar 10, 2008 | 08:58 PM
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can try a compression test. Might tell you if youve lost a seal but i dont think its conclusive to a spun bearing.
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Old Mar 10, 2008 | 09:00 PM
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i dont have a compression gage, is ther a differnt way to check it? back yard style?
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Old Mar 10, 2008 | 09:24 PM
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could be a pilot bearing
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Old Mar 10, 2008 | 09:26 PM
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explain^^ im still new to the rx7's im not to smart on this things yet.
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Old Mar 10, 2008 | 09:30 PM
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its the needle like bearing that is pressed into the e-shaft (crank).
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Old Mar 10, 2008 | 09:33 PM
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is there a way i can check it? also it that the bearing that come from the crank to the trans?
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Old Mar 10, 2008 | 09:37 PM
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someone else will have to answer, ive exhausted the knowledge i have atm lol
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Old Mar 10, 2008 | 09:37 PM
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someone help my man out!
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Old Mar 10, 2008 | 09:38 PM
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yeah its in between the e-shaft and transmission. they make noise when the go bad. you basically have to pull the transmission out to change it while you are there i would suggest a new clutch pack as well. if you don't do that you will have the same issues down the road so might as well do it.
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Old Mar 10, 2008 | 09:39 PM
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lol okay. thanks for the info tho man! i guess i will have to look at it after work tomm. damit
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Old Mar 10, 2008 | 09:40 PM
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Originally Posted by bugman1973
yeah its in between the e-shaft and transmission. they make noise when the go bad. you basically have to pull the transmission out to change it while you are there i would suggest a new clutch pack as well. if you don't do that you will have the same issues down the road so might as well do it.
would this make that noise i was explaining? i did notice some more vibrations in my shifter while i was driving but didnt think anything of it.
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Old Mar 10, 2008 | 09:41 PM
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Originally Posted by b16eg
someone help my man out!
Jimmy! im mad lol.
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Old Mar 10, 2008 | 10:27 PM
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I dont think I would freak out just off of what you've described. Does the car start back up now? If it starts does the exhaust smell rich and does the engine look like it wants to jump out? If it does, its possible your leading ignitor went out. Switch the trailing ignitor with the leading (on side of distributor, look up which is which) and see if that smooths things out.
When mine went out it was in traffic and the clunk was my engine starting to run like complete crap!
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Old Mar 10, 2008 | 10:37 PM
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if its your bearing you should see metal shavings in the oil, IIRC.

the oil will look shiny. run a magnet through it and see if you pick up a lot of small particles.

im having a similar issue, but i think mine is spark related.
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Old Mar 10, 2008 | 11:19 PM
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Is the 7 starting up normally? Or is it having a hard time?
Don't forget to check your engine and transmission mount.
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Old Mar 11, 2008 | 04:47 AM
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ya, its starts up perfect. it was dark last night so i couldnt tell if there were shavings in the oil, or if the motor was shacking alot. when i get on from work im going to check all that. and switch the ignitor. may be i will get lucky. thanks for the info guys!
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Old Mar 11, 2008 | 11:03 AM
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see if you can get a video/sound clip.
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Old Mar 11, 2008 | 12:57 PM
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okay, i just got home from work, im going to start it up and drive it down the street to my friends house. (cant work on cars in my appartment) im going to look at the oil, mounts. my buddy has a phone that can take a vid. so i will post it up here in like 2 hours oe so.
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