Notices
Series I Trouble Shooting This is the place to learn more about or discuss any issues you're having with your RX-8

excessive eccentric shaft play

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 09-23-2012 | 03:21 PM
  #1  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
Unhappy excessive eccentric shaft play

Hey guys this is my first post, I just bought an 04 automatic grey rx8 for my girl friend. We have had the car for about 2 weeks now. She has absolutely fell in love with the car. until the other day... The bolt that holds the tension on the idler pulley for the ac belt broke so I went to the local hardware store and got a bolt to fix it. After examining the car I found that the crank pulley was wobbling pretty bad, So i figured that it had a balancer in it (very new to the rotary) I took everything out so that I could get to it when I did I found the I could grab the pulley and move the e-shaft a good 1/4 inch, so...... the car has been sitting in the garage for a few days now. I have been waiting on a few dealers to see if they could get it in for warranty but the car is 3 months out and no one wants to pull a few strings for me. Has anyone ever seen this? I can't really find any info on it. Someone please point me in some kind of general direction. Im guessing it is just a thrust bearing or washer??? Is it just going to be something that can be replaced by only taking off the front cover or is the entire engine going to need to be disassembled. I'm running on a tight budget so if I could get some help I would like to do it myself or if anyone knows someone located in the central KY area I've got about a 500 budget to try and get this thing going. I would greatly appreciate any type of information on this. Thanks in advance.
Old 09-23-2012 | 04:43 PM
  #2  
dannobre's Avatar
Modulated Moderator
iTrader: (3)
 
Joined: Feb 2004
Posts: 13,719
Likes: 338
From: Smallville
Not good.....any way you look at that it is new engine time..
Old 09-23-2012 | 06:45 PM
  #3  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
it runs perfect though, it actually has no sort of knock what so ever... no chance of just replacing a thrust bearing or....???????
Old 09-23-2012 | 07:53 PM
  #4  
Junirol's Avatar
Toyota Master Technician
iTrader: (24)
 
Joined: Dec 2009
Posts: 429
Likes: 0
From: San Diego
there are thrust bearings, but like what dan said you may want to look in rebuilding the engine and see what cause the bearings to go out.
Old 09-24-2012 | 10:02 PM
  #5  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
any idea of where i could get it worked on near central ky anyone???
Old 09-26-2012 | 07:30 PM
  #6  
LUcKyFuKinGdUcK's Avatar
Registered User
 
Joined: Sep 2012
Posts: 11
Likes: 0
From: Davenport, Iowa
Search for Rodney Jones on craigslist. He is in Louisville. Good mechanic, gets it done quick.
Old 09-26-2012 | 07:30 PM
  #7  
LUcKyFuKinGdUcK's Avatar
Registered User
 
Joined: Sep 2012
Posts: 11
Likes: 0
From: Davenport, Iowa
and he will come to you if you need him to.
Old 09-26-2012 | 07:57 PM
  #8  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
You can crack open the front cover while it sits in the engine.

I would advise taking off the oil pan and removing the front cover some say you can leave the oil pan on.

Once the front cover is removed you will need to work on removing the front stack, there isn't much work involved but it is easy to **** up.

If you have a space to work on the car and have done significant work on a car before it shouldn't be hard to do. If all you have done is change spark plugs and the oil I'd recommend getting a mechanic that knows how to wrench on a rotary.
Old 09-27-2012 | 10:22 AM
  #9  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
I have quite a bit of experience, I have a built h22 that I put together and turboed but no experience on the rotary, I'm gonna take a stab at it when I can get some time off. Just stay up to date on here for me if you guys don't mind and I'll post pics with any queastions. and pray for me that it is something that can just be taken care of in the front cover.
Old 09-27-2012 | 10:38 AM
  #10  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
Originally Posted by Blake Mattingly
I have quite a bit of experience, I have a built h22 that I put together and turboed but no experience on the rotary, I'm gonna take a stab at it when I can get some time off. Just stay up to date on here for me if you guys don't mind and I'll post pics with any queastions. and pray for me that it is something that can just be taken care of in the front cover.
Excellent you should be good to go then.

happy hunting sir.
Old 10-29-2012 | 05:25 PM
  #11  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
Well the car has been setting for a month because I've been so busy with work and school. I finally took a day off and got into it. I've got what seems to be all the bolts out and the oil pan off but I can't get the front "plate" or whatever its called off. I figured a few good tugs from each side would bring it off but it's not... should I have to beat it with a mallet or is there any bolts that are hard to see?

Name:  rx8.jpg
Views: 1043
Size:  100.4 KB
Old 10-29-2012 | 05:35 PM
  #12  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
The front cover will not come off until you remove the front pulley boss. you will need to lock the flywheel in place, you can do that by placing it in 1st gear. that front bolt has about 450 ft lbs of torque on the bolt and requires some muscle to get off. Also you should order a new front main seal that bitch is leaking hardcore.
Old 10-29-2012 | 05:55 PM
  #13  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
I already have the hub loose, there is plenty room for the plate to come off. I was just leaving it there to catch the plate when it broke loose.
Old 10-29-2012 | 05:56 PM
  #14  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
and I will definitely take care of the oil leak
Old 10-29-2012 | 06:25 PM
  #15  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
excellent if the hub is loose whats holding you up is the oil pan, that silicone seal is a bitch and half to remove.

There's a corner that has a depression in it enough to fit a small tool it. I used a stiff Spackle knife to break the seal.
Old 10-29-2012 | 08:40 PM
  #16  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
I already have the oil pan off as well.
Old 10-29-2012 | 08:52 PM
  #17  
9krpmrx8's Avatar
SARX Legend
iTrader: (46)
 
Joined: Jan 2007
Posts: 33,786
Likes: 455
From: San Antonio, Texas
Doesn't the AC Compressor have to be off too? I'll have to go look.
Old 10-29-2012 | 08:59 PM
  #18  
HiFlite999's Avatar
Registered
iTrader: (2)
 
Joined: Jun 2009
Posts: 2,257
Likes: 5
From: MI
FYI, here's a link to the factory service manual: M A Z D A
Old 10-29-2012 | 09:05 PM
  #19  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
the compressor has one bolt going from the side.. its off
Old 10-29-2012 | 09:16 PM
  #20  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
Thank you very much for the manual hiflite, i've been trying to find one for a while now
Old 10-29-2012 | 09:32 PM
  #21  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
Remove all the bolts and pulley boss and everything, double check that you have every bolt out some are hidden.

Once you confirm all that give it a little love tap with a mallet.
Old 11-01-2012 | 11:25 PM
  #22  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
well guys the thrust bearing is good, I'm guessing that maybe it somehow has the wrong spacer that bolts on next to the thrust bearing. Is this possible?? Here are some pics of the e shaft pushed in and then pulled out.. showing how much play it hasName:  rx8-3.jpg
Views: 911
Size:  55.5 KB
Name:  rx8-2.jpg
Views: 929
Size:  67.2 KB
Old 11-02-2012 | 12:08 AM
  #23  
9krpmrx8's Avatar
SARX Legend
iTrader: (46)
 
Joined: Jan 2007
Posts: 33,786
Likes: 455
From: San Antonio, Texas
Ouch. Time to pull that baby.
Old 11-02-2012 | 08:06 AM
  #24  
Blake Mattingly's Avatar
Thread Starter
Registered User
 
Joined: Sep 2012
Posts: 14
Likes: 0
I've heard of people talking about spacers, is that the part that bolts in with 3 bolts right next to where the thrust bearing is.
Old 11-02-2012 | 09:58 AM
  #25  
shadycrew31's Avatar
WENTGERMAN
iTrader: (6)
 
Joined: Apr 2008
Posts: 5,806
Likes: 31
From: Burbs,PA
HOLY ****...

Dude I dunno what happened there but those spacers only change by thousands of an inch not a 1/4 inch.

Something is incredibly fubar in that thing.


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: excessive eccentric shaft play



All times are GMT -5. The time now is 09:17 AM.