13b running rough and knocking help please
11-01-09, 12:30 AM
#1
blown motor!!!!!!
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13b running rough and knocking help please
so today im driving (6 port streetport n/a 13b) and get on it some but not very much and a few minutes after my car starts to run really rough and shaking alot and had no power i get to a stop light and my car will not idle and dies then floods got it started and home then come to notice the noise is coming from the rear rotor/housing so i need help to to figure out whats going onwill post video and link it on here tomorrow.
11-01-09, 12:40 AM
#2
The Doctor
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so today im driving (6 port streetport n/a 13b) and get on it some but not very much and a few minutes after my car starts to run really rough and shaking alot and had no power i get to a stop light and my car will not idle and dies then floods got it started and home then come to notice the noise is coming from the rear rotor/housing so i need help to to figure out whats going onwill post video and link it on here tomorrow.
11-01-09, 10:42 AM
#6
Engine, Not Motor
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Check compression first (http://www.aaroncake.net/rx-7/blown.htm ) and if the engine checks out, look towards a failed injector.
11-01-09, 04:21 PM
#7
blown motor!!!!!!
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since i dont have access to a compression tester i went to your link aaron and did what it said and it all sounds good no pauses between the psssh noise on either rotor and the compression sounds pretty strong. is there a way i could check the injectors myself? or is that more of something i need to leave up to my local rotary mechanic?
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11-01-09, 04:25 PM
#8
The Doctor
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since i dont have access to a compression tester i went to your link aaron and did what it said and it all sounds good no pauses between the psssh noise on either rotor and the compression sounds pretty strong. is there a way i could check the injectors myself? or is that more of something i need to leave up to my local rotary mechanic?
And about the injectors:
1. Crank up car with hood open
2. Go to engine bay
3. Smack injectors 1 by 1 with a wrench till idle comes back to normal
4. ???
5. PROFIT
This usually works for stuck injectors but stock ones rarely get stuck. They just get clogged. This is more of a technique for high end injectors like 1200's or 1680's.
But really though. Theirs tons of posts on this forum for how to check if the injectors are clogged/stuck. Use the search button and see if anything comes up.
11-01-09, 05:05 PM
#9
blown motor!!!!!!
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the car smokes a little but no more then usual for running a little premix and normal only on start up, and all the chugs noises sounds pretty much identical i just took videos of how both rotors sounds with the leading plug out and of the car running just waiting for them to finish converting for another site then i will link them on here so you all car hear what im hearing
11-01-09, 05:13 PM
#10
blown motor!!!!!!
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http://videos.streetfire.net/video/f...ion_716370.htm
http://videos.streetfire.net/video/r...ion_716371.htm
here is the videos i took with the leading plug out on the front then the rear rotor
http://videos.streetfire.net/video/r...ion_716371.htm
here is the videos i took with the leading plug out on the front then the rear rotor
11-01-09, 05:15 PM
#11
blown motor!!!!!!
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and here is the video of the knocking noise while the engine is running
http://videos.streetfire.net/video/s...ise_716372.htm
http://videos.streetfire.net/video/s...ise_716372.htm
11-02-09, 12:22 AM
#13
Ken, I might be up that way in the next day or 2. I will bring the compression tester and a few other tools to check it out. Have you checked the front shaft for excessive end play? I have heard a simmilar sound on a Rotary that had a spun bearing. Also if you have a stethiscope you can listen for the buzz of the fuel injectors. Keep in touch.
- Robert.
- Robert.
11-02-09, 05:27 PM
#14
blown motor!!!!!!
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have not thought about checking the front shaft for play dont really know how, and i dont have access to a stethoscope and if you are in salem in the next day or so or whenever and can drop by that would be great
11-04-09, 10:40 AM
#15
The Doctor
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If you have feeler gauges, the limit of end play is 0.09mm or 0.0035in (taken from the FSM). It should be somewhere between 0.040 and 0.070mm (0.0016 - 0.0028in)
Like I said, it should BARELY move. If your there with a friend doing it, its going to be one of those "did you see it?" "I'm not sure, try again" kind of things.
11-04-09, 04:17 PM
#16
blown motor!!!!!!
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well i had everything checked out today and had 14psi of compression on the front rotor and 87 on the rear...
so it spun a bearing and my front corner seals are gone time for a rebuild....
so it spun a bearing and my front corner seals are gone time for a rebuild....
11-05-09, 04:46 AM
#17
blown motor!!!!!!
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well since i am for sure facing a rebuild i have been thinking about other things i could do and i now wondering does anyone know a kinda ball park guess on how much it would run me to get a t2 motor and swap my streetported housing over to the t2?
11-05-09, 11:49 AM
#18
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I wouldnt count on any of your engine parts being good. This happened to my T2 and I only had 1 salvagable end plate. you can usualy get a stock JDM s5 t2 motor for around 1500. this has a better turbo and manifold and will make more power than a s4 motor but you will have to use some parts off your old motor. usually injectors throttle body and tps, and if you want to premix then you dont need to swap the front cover. I personally would go with the JDM S5 t2 motor.
11-05-09, 05:02 PM
#19
blown motor!!!!!!
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if i was to get a s5 t2 i dont think i could use my old manifold cause im running s4 right now and if i go to s5 i would want to go full s5 and im wondering could i swap my streetported housing from a s4 na to a s5 t2?
11-06-09, 02:50 AM
#21
blown motor!!!!!!
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yea front rotor is shot for compression corner seal is gone and the noise if from a spun bearing the car sounded alot better before this happened its also running 3" straight exhaust with a corksport muffler with pretty much no packing left in it
11-06-09, 08:15 PM
#25
blown motor!!!!!!
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i want to but i got the car for 2000 with the streetport 13b 6 port full exhaust rims new tires and after market suspension all around so i got a bit of a deal to do that... i did get pulled over cause of the old owner tho he cut the oregon part off of newer tag stickers and had them on washington plates lol
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