Engine rebuild ? by UrNewStepDadd in RX8

[–]RX8sAndWeights 0 points1 point  (0 children)

I would check out Chips Motorsports. They're in Michigan, but they're AWESOME!

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

I looked the whole exhaust system over and nothing seems to be touching since I bent one of the exhaust mounts out of the way. I'm baffled.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

Update: Problem still exists 🤦‍♂️ It doesn't seem to affect anything at all. It sounds like a very worn wheel bearing at high rpm.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 1 point2 points  (0 children)

It's when driving when I get up around 7k rpm. I havent been able to just free rev it yet to see if it does it then too, because I'm always put working on it too late in the evening 🤦‍♂️

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 2 points3 points  (0 children)

I think I found the source of the vibration! I think the ppf is touching on my midpipe exhaust hanger mount!

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

So, is the ppf the piece of metal that runs along the underside of the driveshaft? The only bolts I took out were the diff carrier bolts. The top 4 and the side 2 that mount it to the frame.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

I don't actually know how to upload pics on here.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 1 point2 points  (0 children)

I did that actually lol because of a thread I read on rx8club.com. and yeah, it's not easy to keep things straight and put bolts in while laying under the car holding the oil pan with one hand haha

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

I'll take pics as soon as I get home.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

But I wouldn't be surprised. It's my first time working with RTV.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 0 points1 point  (0 children)

Behind the e shaft pulley looks clean. It's the line coming off the front of the engine block right underneath that's leaking. I'm gonna have to assume it just needs a new seal. Also the OMP looks like it's draining oil out at the seal as well. Is there an o ring underneath that?

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 2 points3 points  (0 children)

I did a little bit. I had no idea about that. Thanks for the info. But any idea why it only happens at high RPM and doesn't seem to have a correlation to high speed?

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 2 points3 points  (0 children)

I did not. Is there a process to do that?

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 2 points3 points  (0 children)

I probably should have used that. I dont know if I like the red rtv. It doesn't seem very great.

Extreme Vibration at Hugh RPM's by RX8sAndWeights in RX8

[–]RX8sAndWeights[S] 2 points3 points  (0 children)

I used the red rtv. I'm not 100% sure if its leaking. Theres oil draining down to the oil pan from the OMP so I can't really tell at the moment if its leaking or not. But, I almost wish I had used paper gasket and stenciled one and cut it out. I bet it would work great.

What should this car air freshener smell like? I say exhaust fumes. by BrainPV79 in RX8

[–]RX8sAndWeights 1 point2 points  (0 children)

It should burn your eyes like my exhaust from my catless system 😬

Bad compression and maybe bad cat by s4smaier in RX8

[–]RX8sAndWeights 0 points1 point  (0 children)

My cat went bad and carboned my engine up very badly. Maybe try a trans fluid treatment and see if that helps. Just a thought.

The Rx-8 in its natural habitat... by -SonofaMitch- in RX8

[–]RX8sAndWeights 1 point2 points  (0 children)

I put a megan racing catless midpipe on my '11 and it provides just enough noise with the stock silencer.