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- From: hinz@bonfire (David Hinz Mfg 4-6987)
- Subject: Re: Timing belt replacement in a Sentra
- Message-ID: <1992Jul24.072519.21072@mr.med.ge.com>
- Sender: news@mr.med.ge.com
- Nntp-Posting-Host: bonfire
- Organization: GE Medical Systems, Magnetic Resonance
- X-Newsreader: Tin 1.1 PL4
- References: <1992Jul23.211228.29829@noose.ecn.purdue.edu>
- Date: Fri, 24 Jul 92 07:25:19 GMT
- Lines: 22
-
- rjwade@rainbow.ecn.purdue.edu (Robert J. Wade) writes:
- :
- : what is this 'freewheeling'...if the belt breaks..are the valves not free
- : to do whatever they want???
-
- It means that when the rubber band (oops, I mean timing belt) breaks, and the
- valves are in some random position (some up, some down), the pistons are
- not going to hit them as the engine continues to spin. I suppose this
- is accomplished either by cutouts in the crown of the piston, or by just having
- enough clearance to accomidate the valves in a worst-case situation, e.g.
- piston at TDC and valves pushed all the way in.
-
- Give me a timing chain anyday, the way it's SUPPOSED to be done. Yes, it's
- noisier, but they last forever.
-
- --
-
- Dave Hinz - Opinions expressed are mine, not my employer's. Obviously.
- SAAB - you get what you pay for; you pay (and pay, and pay) for what you get.
- hinz@picard.med.ge.com
-
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-