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Old 07-07-2013, 10:22 PM   #1
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flywheel cracks! how serious?

replacing my clutch on my 04 tj. after inspection noticed tiny cracks in flywheel. if I run my fingernail over then I can feel them slightly. also has heat marks. my question is replace resurface or not a big issue?
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Old 07-08-2013, 07:52 AM   #2
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Those minor surface cracks can lead to more troublesome issues down the road. While you have it apart, have it resurfaced.

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Old 07-08-2013, 08:07 AM   #3
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Not an issue - it's quite normal. As previously stated. Get it surfaced by a reputable local machine shop and you will be fine.

Also.. I always change the engine rear main seal while the flywheel is off. It can save tons of headache and time in the future.

Good luck
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Old 07-08-2013, 08:15 AM   #4
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TJ flywheels have a slight crown to them and should not be resurfaced unless they can follow the crown. I would replace it with a new one if you have any concerns.
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Old 07-08-2013, 08:27 AM   #5
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tj flywheels have a slight crown to them and should not be resurfaced unless they can follow the crown. I would replace it with a new one if you have any concerns.
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Old 07-08-2013, 11:28 AM   #6
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thanks I'm going with a new one. anyone have clutch recommendations?
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Old 07-08-2013, 11:37 AM   #7
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LUK is what I'm running and its held up well.
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Old 07-08-2013, 08:51 PM   #8
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I have read on a different forum that the throughout bearing in the luk kits were cheap with quite a few plastic parts.
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Old 07-08-2013, 09:11 PM   #9
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I have read on a different forum that the throughout bearing in the luk kits were cheap with quite a few plastic parts.
Was the throw-out bearing deficient throughout or just parts of it? Maybe throughout is one of those words that we threw-out with the bathwater.
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Old 07-08-2013, 09:29 PM   #10
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Was the throw-out bearing deficient throughout or just parts of it? Maybe throughout is one of those words that we threw-out with the bathwater.
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Old 07-08-2013, 09:43 PM   #11
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I have read on a different forum that the throughout bearing in the luk kits were cheap with quite a few plastic parts.
I had the luk clutch in with a precision throw out bearing and had all kinds of problems with it. I removed the clutch and replaced it with the plastic luk with no problems at all.

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