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DIY: Flywheel/Clutch Removal and Replacement

Old 05-18-2016, 01:41 PM
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Alright, I'll go pick up a bigger hammer then and a new 2x4. But considering that I've been giving fully cocked swings with full strength to no avail, would a blowtorch help me here as a backup?

I'm just not sure how long to apply heat if I was to try using that method.
Old 05-18-2016, 02:24 PM
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If your using a claw hammer your going to be there a while.

Avoid torching it.

Travis
Old 05-18-2016, 03:16 PM
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Be sure to leave the FW nut on by a few threads too. As a last resort put some tension on it WITH A PULLER and then smack it with a deadblow or large hammer and wood.

Last edited by Signal 2; 05-18-2016 at 03:21 PM.
Old 05-19-2016, 07:29 AM
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A 2.5lb sledge did the trick, thanks a lot guys.

There's some serious sorcery behind why the mini sledge got it off in 5 to10 minutes when I'm sure I was putting more strength behind the claw hammer for close to an hour. Seriously guys, thanks, can't tell you how much this was stressing me out.

To add to this thread, if you've read the post advising you to tighten two bolts into the flywheel to push it out, DON'T. Or at least don't use the bellhouse bolts in the attempt because they're the only ones you have on hand that will fit. I was replacing the bolts anyway so I decided to use the old ones. The bolts snapped off right inside the hole with no results and I have to get em out before I reinstall.
Old 05-19-2016, 05:39 PM
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Glad you got it. Normally no reason to change the bell housing bolts. And be sure to take note of any differences in length and corresponding position.
Old 09-02-2016, 04:26 PM
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Hi guys, just did a new clutch install and have the transmission and such back on, but I'm having a derp moment and can't remember where this last 4-pin connection on the harness goes!

Pic here

Last edited by ScaryMonster; 09-02-2016 at 04:32 PM.
Old 09-02-2016, 04:35 PM
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Originally Posted by ScaryMonster
Hi guys, just did a new clutch install and have the transmission and such back on, but I'm having a derp moment and can't remember where this last 4-pin connection on the harness goes!

Pic here
Looks like your O2 sensor connector.
Old 09-02-2016, 04:48 PM
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Lmao yep. That was it. For some reason I had it in my head that it was something else on the transmission. Cat isn't even back on yet so no wonder

Thanks!
Old 09-02-2016, 04:53 PM
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Originally Posted by ScaryMonster
Lmao yep. That was it. For some reason I had it in my head that it was something else on the transmission. Cat isn't even back on yet so no wonder

Thanks!
No problem, just make sure you connect the neutral and reverse switches to right connectors. If your car dies and the ignition fuse blows when you try and start it up, the connectors were likely mismatched. I made that mistake and my heart dropped lol
Old 11-20-2016, 09:17 PM
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Clutch

I replaced my factory clutch with a stage 3 kit. It will not engage now. The slave cylinder seems to be working properly and I bleed system. I also replaced my broken clutch pedal. What could be the reason the new clutch won't engage?
Old 11-20-2016, 09:33 PM
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Originally Posted by Dannyandhis8
I replaced my factory clutch with a stage 3 kit. It will not engage now. The slave cylinder seems to be working properly and I bleed system. I also replaced my broken clutch pedal. What could be the reason the new clutch won't engage?
What do you mean by not engaging? Like, you can't get into gear even with the car off?
Old 11-20-2016, 09:50 PM
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It won't start and if you try to roll start it the rear tires grab with it in gear and the clutch pressed.
Old 11-21-2016, 12:40 AM
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Originally Posted by Dannyandhis8
It won't start and if you try to roll start it the rear tires grab with it in gear and the clutch pressed.
You sure it is bleed properly?

Check the pedal free play adjustment and the clutch switch...sounds like the switch isn't working properly
Old 11-30-2016, 06:33 PM
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Nice diy write up👍👍👍 With the ad of air and a lift, I was able to knock out the job in about 8.5 hours following this step by step. Every thing went back together well but there 1 thing that bothers me. The throw out bearing chatter hasn't gone away I was wondering if anyone could shed some light on my dilemma
Old 01-20-2017, 01:00 PM
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I'm in the process of removing my tranny and had a few thoughts that might be useful to anyone else looking to do the same.

Firstly, it is something you can do on your drive with axle stands and a pair of jacks. However, if you have time constraints make sure that you read all the info here and have a back-up plan for any issues. There is some extra info and images here.

Secondly, since this thread started corrosion has continued to work its evil ways on PPF and driveshaft nuts. Even with a humongous breaker bar and extension (5+ ft) , I couldn't undo the PPF nuts until I employed the services of a blow torch. For the driveshaft bolts I used wheel nut bar (ie it had a built-in 90 deg bend) and had to use a blow torch on the nuts; I used a heat-resistant mat to minimize the risk of applying heat to the UJ.

Thirdly, as an extra precaution because I didn't have a dedicated lifter, I looped a rope around the end of the tranny from the transmission tunnel over wooden blocks on the tunnel that I removed as I lowered the tranny. Looping the rope and fitting the blocks took less than 5 minutes and helped me feel a whole lot more confident about lowering the tranny.
Old 03-09-2017, 07:40 PM
  #166  
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I took out the slave cylinder out to get clearance with the lines attached. Now struggling to get the bolts in place. Front bolt goes in easy however rear is a struggle. Any tips?
Old 06-12-2017, 03:52 PM
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Flywheel help

ok so I have a question I am hoping someone can help me with. I had my flywheel turned and I noticed when getting it back the lip where the pressure plate mounts is thinker on one side from the other the machine shop told me when they measured it was slightly thinker one side to the other so they stayed true to how it was. So what I am wondering is if someone can tell me if this is true. Is the lip from the teeth to the pressure plate mountin area thicker from one side to the other. ??? Sorry for reviving old thread just don't know who else to ask my local Mazda dealer didn't have any answer for me.
Old 06-12-2017, 04:36 PM
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Originally Posted by Tj428cj
ok so I have a question I am hoping someone can help me with. I had my flywheel turned and I noticed when getting it back the lip where the pressure plate mounts is thinker on one side from the other the machine shop told me when they measured it was slightly thinker one side to the other so they stayed true to how it was. So what I am wondering is if someone can tell me if this is true. Is the lip from the teeth to the pressure plate mountin area thicker from one side to the other. ??? Sorry for reviving old thread just don't know who else to ask my local Mazda dealer didn't have any answer for me.

The stock flywheel is assymwtrical because it has a counterweight built in

so it is normal for it to be thicker on one area
Old 06-12-2017, 04:50 PM
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Ok

So the surface where the pressure plate mounts will have a thinker lip on one side to the other? I figured it would be the same all the way around. The lip where the clutch disk rides seams to be the same thickness all the way around. but I can't find feeler gage or anything to really measure it either but by feel it seams to be the same all the way around. as to the lip where the pressure plate mounts is definitely thicker one side to the other. Sorry if I seam to be repeating my self just want to make sure before I put it back together.

Originally Posted by dannobre
The stick flywheel is assymwtrical because it has a counterweight built in

so it is normal for it to be thicker on one area
Old 06-12-2017, 05:20 PM
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Originally Posted by Tj428cj
So the surface where the pressure plate mounts will have a thinker lip on one side to the other? I figured it would be the same all the way around. The lip where the clutch disk rides seams to be the same thickness all the way around. but I can't find feeler gage or anything to really measure it either but by feel it seams to be the same all the way around. as to the lip where the pressure plate mounts is definitely thicker one side to the other. Sorry if I seam to be repeating my self just want to make sure before I put it back together.

PUT up a picture..or I can put up a pic of a new stock flywheel when I get home 😎
Old 06-12-2017, 05:49 PM
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FWIW, I think the RX8 FW and FD FW are the same...they're both a 'step' design with the integrated counter-weight on the back side. Tried looking for a pic of the back side to show that however this is the best I can do. But it does show that 'step' friction surface. If the FW had no issues before and machine shop is worth their salt, it should still be fine.

Name:  photobucket-18673-1391376712950_zps070de156.jpg
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Last edited by Signal 2; 06-12-2017 at 05:53 PM.
Old 06-12-2017, 06:02 PM
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Ok best I can explain sticker

sticker 1 has one sticker to make it flush sticker 2 has 4 stickers to make it flush Sticker 1 side took one sticker to make it flush to the lip sticker 2 side took four stickers to make it flush. Sorry just best I can explain
Originally Posted by dannobre
PUT up a picture..or I can put up a pic of a new stock flywheel when I get home 😎
Old 06-12-2017, 06:06 PM
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On the stepped side not back

The machine shop I went to was highly recommended and one of the only ones that asked before hand if it was stepped I posted a pic trying to explain the best I can in another comment thank you for any help

Originally Posted by Signal 2
FWIW, I think the RX8 FW and FD FW are the same...they're both a 'step' design with the integrated counter-weight on the back side. Tried looking for a pic of the back side to show that however this is the best I can do. But it does show that 'step' friction surface. If the FW had no issues before and machine shop is worth their salt, it should still be fine.

Old 06-12-2017, 06:57 PM
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Jw

I tried to post a pic. Did my picture post ?

Originally Posted by dannobre
PUT up a picture..or I can put up a pic of a new stock flywheel when I get home 😎
Old 06-12-2017, 07:07 PM
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Sorry - only in the DIY section, we have restricted posting HOSTED pictures; they tend to disappear.

You can UPLOAD, but not 'link'.

That way, the pic will endure for future readers.

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