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- Path: sparky!uunet!olivea!mintaka.lcs.mit.edu!ai-lab!amalfi!pwu
- From: pwu@amalfi.ai.mit.edu (Peng Wu)
- Newsgroups: rec.autos.tech
- Subject: Re: Timing belt replacement in a Sentra
- Message-ID: <25813@life.ai.mit.edu>
- Date: 24 Jul 92 18:03:27 GMT
- References: <9927@sun13.scri.fsu.edu> <1992Jul22.191644.23389@EE.Stanford.EDU> <25756@life.ai.mit.edu> <1992Jul23.211228.29829@noose.ecn.purdue.edu>
- Sender: news@ai.mit.edu
- Lines: 20
- In-reply-to: rjwade@rainbow.ecn.purdue.edu's message of 23 Jul 92 21:12:28 GMT
-
-
- >Timing belt off may or may not cause engine damage depending on the design of
- >the engine. See the following old message for reference:
- >
- >=======
- >All Ford-built engines except the old 1.6L Escort are
- >free-wheeling (no damage possible from broken timing belt).
- >Note that the newer, 1.9L Escorts are free-wheeling.
- >
- >Tom Leone <tgl@slee01.srl.ford.com>
-
- what is this 'freewheeling'...if the belt breaks..are the valves not free
- to do whatever they want???
-
- As I understand it, it means that it is impossible for a cylinder to hit a
- valve because of a broken or out-of-phase timing belt. Sufficient clearance
- between valves and cylinders is all it takes. When a timing belt breaks,
- valves are not totally free to do whatever they want (a broken off valve may
- have more freedom). Valves stay or move to wherever the cam shaft dictates
- them.
-