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Old 07-09-2013, 05:54 PM   #1
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Questions for new flywheel and clutch

I am getting ready to install a new clutch and a Fidanza flywheel in a few weeks and I have a couple of questions that I could not find either on these forums or pretty much anywhere else. I got the flywheel on eBay almost two months ago, and though it's a new and unused unit, it did not come with any bolts or fasteners - just the flywheel, the installation instructions, and a big sticker. I had read on Honda forums that you're supposed to install new flywheel bolts, but the factory service manual doesn't say anything about replacing the flywheel bolts.

So. First question: do I or do I not replace the flywheel bolts? Second question: since I'm not sure if the 1nz flywheel from Fidanza came with any bolts or fasteners for the pressure plate, do I reuse the pressure plate bolts or is the thread pitch on the Fidanza different from the stock flywheel? Last question: for those who have installed a Fidanza unit on their Yaris themselves (not taking the car to a shop to have it installed), do any of you have tips or suggestions that would help make the installation process smoother and less frustrating?

Thanks in advance
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Old 07-09-2013, 06:49 PM   #2
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Which clutch?

Make sure they mate properly. Any surfacing instructions with it?
They don't come with hardware. Are the flywheel bolts "torque" or "torque to yield"? If the latter, you can't re-use them (stretch bolts).
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Old 07-09-2013, 07:21 PM   #3
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It's the TRD clutch shown on TRDSparks and other sites. The Fidanza instructions don't say anything about surfacing, just that it's recommended but not required to have it balanced. The clutch itself and the pressure plate appear to mate to the flywheels just fine, although the pressure plate sits about 1/8 - 1/4 inch above the flywheel when I mock it up. From what I've read, this is normal as the pressure plate bolts will, when torqued in the proper sequence, mate the pressure plate flat to the flywheel. The service manual says to torque the pressure plate bolts, and "torque to yield" isn't present anywhere in the clutch chapter, so I assume these bolts can be reused. The flywheel bolts in the manuals say "torque to 90 ft/lbs, then turn 90 degrees" so I assume these are torque to yield and must be replaced?

Also, I have the manual transmission seal/gasket set from Toyota (P/N 04331-52520). Besides these seals, is it recommended that I need any other gaskets/seals?
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Old 07-10-2013, 04:51 PM   #4
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Bump.

Anyone ever replaced their flywheel and pressure plate here?
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Old 07-10-2013, 05:16 PM   #5
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the pressure plate bolts are re-usable and you need brand new flywheel bolt from toyota like the manual shop said
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Old 07-10-2013, 05:32 PM   #6
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Then I just need new flywheel bolts. About the seals/gaskets: though I have the Toyota manual "transmission overhaul" gasket set, do I need a rear main seal or can it be reused on these cars?
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Old 07-10-2013, 05:50 PM   #7
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I always use new gaskets. What if you re-use one and it leaks?

Quote:
Anyone ever replaced their flywheel and pressure plate here?
Snarky comment!
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Old 07-10-2013, 05:54 PM   #8
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Ooooh, in what way was that snarky?? I don't know of hardly any Yaris owners that have upgraded their clutch and flywheel at the same time, which is why I started this thread in the first place. It was just a very simple and straightforward question.
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Old 07-10-2013, 05:55 PM   #9
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and yeah you need to change de seal :p
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Old 07-10-2013, 05:56 PM   #10
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Alright, awesome. That's all I needed to know. Thanks!
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Old 07-10-2013, 11:45 PM   #11
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Ive changed my clutch in my tercel several times...still on the original hardware...however is that proper? I have no idea. I reused the bolts when I went to an aluminum flywheel as wheel
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Old 07-11-2013, 07:17 AM   #12
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As TRD states, when buying their lightened flywheel,you need to buy new flywheel bolts.
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