Cypher0117

just this past week i have heard almost a whistle type noise and i think its my throw out bearing. it only happens when the clutch is enguaged. Doesn't matter if the car is in gear and moving or if its in neutral, the noise is usually there. Once i take up the freeplay in the top of the clutch pedal (once i feel resistance) the noise immediatly stops and doesn't return until ive either shifted gears or taken my foot off of the pedal. Can someone comfirme if this is my throw out bearing or if it would be something else? Thanks in advance

CH2iS*

i have the same problem right now and someone suggested that it could be the throw out bearing. anyway, only one way to find out for me. i'm going to take it apart and inspect everything. good luck.

del_slow420

yea thats what it sounds like i no in my del sol with the b16 i snapped both sides of the bearing off that connect to the fork

MonkeyBoy668

Typically if your throwout bearing is the problem the noise will start when you depress the pedal. When the pedal is released the throwout bearing isn't engaged so the noise should go away. You can try greasing up the bearing & fork but it's unlikely to have an effect.

What's probably gone bad is your transmission's input shaft bearing. If you changed the clutch recently, the difference in weight/balance between old & new clutch assemblies can cause the ISB to fail. Basically the ISB was worn in based on the old clutch assembly and wears out of spec while trying to conform to the new assembly.

If it is the ISB you can ignore it for a little while, but it will continue to get louder and louder. After enough time passes you risk having a ball bearing break, which will distribute metal shards throughout your entire trans, risking damage to all moving parts. The trans will need to be dropped and opened in order to replace the bearing.

instructor74

It is the poilot bearing that is in more then likely the input shaft bearing like Monkeyboy said. I also had the differental cause a noise that we thought was an ISB(that was the only one I ever saw like that). good luck

CardDealer

Modified by CardDealer at 9:38 AM 11/16/2006

Cypher0117

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MonkeyBoy668 &raquo;</TD></TR><TR><TD CLASS="quote">What's probably gone bad is your transmission's input shaft bearing. If you changed the clutch recently, the difference in weight/balance between old & new clutch assemblies can cause the ISB to fail. Basically the ISB was worn in based on the old clutch assembly and wears out of spec while trying to conform to the new assembly.</TD></TR></TABLE>

idk...i changed my clutch about a year ago mid July. Would it take a year for the weight/balance issue you talked about to cause the ISB to fail?

Runnerdown

no, ISB is common failure on honda trannys. Everyone confuses them with throwout bearings, but I have personally never seen one of those fail. Replaced a lot of ISB though.