

| Subject: | Re: question regarding clutch bearings and shifting problems |
| From: | Chris DeLong |
| Date: | Sun, 8 Jun 2003 23:36:02 +0000 |
*sounds of large audience clapping* Thank you Mark! What a fine presentation of factual evidence supported by real life situations. Good clarification there! *steps to side of podium and claps* Chris DeLong Fine Tuning 206.367.5503 www.finetuningperformance.com Seattle, WA USA >From: mark drillock <drillock@EARTHLINK.NET> >Reply-To: mark drillock <drillock@EARTHLINK.NET> >To: vanagon@GERRY.VANAGON.COM >Subject: Re: question regarding clutch bearings and shifting problems >Date: Sun, 8 Jun 2003 16:14:09 -0700 > >Yes. The main purpose of the bearing is to allow the engine to turn at a >different speed that the tranny input shaft. If the bearing is seized >the tranny shaft will turn whenever the crankshaft is turning. Since >both shafts turn together anyway when you are in neutral with the clutch >pedal released the suspect pilot bearing is not needed at that time. It >is also not needed when in gear and the vehicle is moving with the >clutch pedal released. It's main use is when the vehicle is stopped in >gear and the engine is running. That is what wears it out. Some people >sit at stop lights with the clutch pedal down and the tranny in gear. >Doing that forces this bearing to work that whole time and shortens it's >life. It also does some work when you are shifting gears and have the >clutch pedal down and if you make it a habit to coast in gear while >holding the clutch down that will also require the bearing to do work. > >The pilot bearing is a little tiny needle bearing. It gets no >lubrication it's whole life other than what it is given by the mechanic >who puts it in. When you idle at a light with the tranny still in gear >this poor bearing spins at 1000 rpm the whole time. It is amazing that >they last as long as they do when driven properly but holding down the >clutch while idling wears them out. They usually make noise long before >they get so bad as to completely seize. > >Mark > > >David Most wrote: > > > > If the pilot bearing is seized, would I still be able to start the >engine > > with the gear shift in neutral and just let it idle? > > > > _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail
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