Thread View: net.auto.tech
2 messages
2 total messages
Started by Mark Stehlik
Tue, 05 Nov 1985 02:16
Reverse noise
Author: Mark Stehlik
Date: Tue, 05 Nov 1985 02:16
Date: Tue, 05 Nov 1985 02:16
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It is true that REVERSE gear on most manual transmissions is not
synchronized. That means that it's quite possible that you will get a
little grinding noise when you engage the gear. The noise is normal
and the 'wear and tear' is minimal.
A solution that I've found to work real well on my Mazda -
Shift into a forward gear (pick one, any one will do - I use 3rd)
before shifting into reverse. Leave your foot on the clutch and
shift into REVERSE. This has the advantage of using the syncros
to "line things up" and, consequently, the shift into REVERSE is
noiseless.
--
ARPA: mjs@cmu-cs-g
--
Re: Reverse noise
Author: Paul Fries
Date: Wed, 06 Nov 1985 17:16
Date: Wed, 06 Nov 1985 17:16
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In article <326@g.cs.cmu.edu> mjs@g.cs.cmu.edu (Mark Stehlik) writes: >It is true that REVERSE gear on most manual transmissions is not >synchronized. That means that it's quite possible that you will get a >little grinding noise when you engage the gear. The noise is normal >and the 'wear and tear' is minimal. > >A solution that I've found to work real well on my Mazda - > > Shift into a forward gear (pick one, any one will do - I use 3rd) > before shifting into reverse. Leave your foot on the clutch and > shift into REVERSE. This has the advantage of using the syncros > to "line things up" and, consequently, the shift into REVERSE is > noiseless. The thunk into reverse is due to the fact that the mainshaft of the transmission is still spinning after you have depressed the clutch. Using the synchronizers of another gear lets you stop the mainshaft without the thunk (synchronizers equalize the speed differential between the two sets of shafts with less noise), however, the gears are not necessarily "lined-up". You may not always be able to get it into reverse on the first try, as the exact positions of the reverse gears are uncertain. If it doesn't work the first time: 1) Shift back to neutral, 2) release clutch (lets mainshaft spin again) 3) depress clutch 4) shift into a synchronized gear, then to reverse (as per previous suggestion). Repeat this procedure as necessary to get into reverse without noise.
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