Clutch Delay Valve? - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #1 of 414 (permalink) Old 02-29-2016, 07:55 AM Thread Starter
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Clutch Delay Valve?

I'm installing a new spec clutch as my old OEM is finally going out. We ordered new actuator(slave cylinder) and pilot bearing. On the actuator there appears to be a CDV and my installer mentioned removing it would be a good idea for many reasons and a quick Google search will show you why but it essentially hinder quick shifts and reduces clutch life. Has anyone gone down the road of removing one or coming up with a workaround?
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post #2 of 414 (permalink) Old 02-29-2016, 01:57 PM Thread Starter
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We have one. I removed it.
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post #3 of 414 (permalink) Old 02-29-2016, 02:00 PM
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You mean leaving it in will hinder quick shifts and reduce clutch life?

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post #4 of 414 (permalink) Old 02-29-2016, 07:03 PM Thread Starter
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Correct. Slows the disengagement of the clutch. So even under normal use it makes the separation slower essentially slipping the clutch instead of a clean and quick disengage. I'm driving it now and man it's different. Feels good and solid.
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post #5 of 414 (permalink) Old 02-29-2016, 07:04 PM
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Is it accessible without getting into the bellhousing?
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post #6 of 414 (permalink) Old 02-29-2016, 07:10 PM Thread Starter
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Yes. It sticks out of the drivers side of the bellhousing up top. Should unscrew and just use a punch to pop it and the rubber bushing out. Easy tap and it popped right out. Screw back on and be prepared to bleed the clutch again. 200+ pedal pumps. I had everything apart for the clutch install so it may not be accessible without dropping the trans.

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post #7 of 414 (permalink) Old 03-01-2016, 12:48 PM
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Thanks. Are you serious about 200 pumps?
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post #8 of 414 (permalink) Old 03-01-2016, 02:39 PM
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I've heard BMW guys complain about the CDV, then rant and rave that it shifts cleaner and faster after modification or delete.
Didn't realize that Challengers even had this. Maybe a partial cure/help for the Tremec's notchy shifting?
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post #9 of 414 (permalink) Old 03-01-2016, 02:41 PM
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Originally Posted by Geno22 View Post
Maybe a partial cure/help for the Tremec's notchy shifting?
Worth a shot, partial or slow clutch release will definitely affect shifting and probably increase synchronizer wear too.



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post #10 of 414 (permalink) Old 03-01-2016, 02:58 PM
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Thanks. Are you serious about 200 pumps?
yes it is - self bleeding system. Just takes a bit of work...

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