Coasting in Neutral???

There was no unusual wear to any part of my clutch assembly. The pressure
plate was replaced on principle because it was 255,000 miles old, not
because anything was specifically wrong with it.

Riding the clutch - or neglected adjustment - will cause far quicker and
more severe wear than double-clutching.

 

They've really screwed down the fuel-cutoff since 1995. All Honda engines
now shut off the injectors on decel at or below 1,000 rpm. There's one
Civic engine where they shut off on decel above 850rpm. Can't remember
which one just now, though...

In 1991 it was 1,500 rpm.

 

i didn't say there was, but by definition, the more times you operate
it, the closer it gets to its limit. you're operating it twice as many
times as other people, that's all.

quicker wear of the friction plate and thrust bearing, yes indeed.

 

not true - and we've had this conversation before. the porsche type
synchro is a large annular ring with a couple of springs inside. it
has steel-to-steel contact, unlike the bronze cones of the more
traditional type.

not so. the porsche type is simply a friction fit. if you want to race
it and over-ride the blocking action, you can.

while they spin, they're hydrodynamically separated by oil.

actually, all it means is that the two are in sync. nothing else. it
won't drop in [under normal usage] unless they are. if it takes time to
sync, it doesn't matter because the real syncing comes from rev matching
if relatively low mass components - two cogs, two shafts and a clutch
friction plate.

not so you'd notice. really, the blocker mechanism is excellent and
lasts as long as the rest of the transmission unless forced. and that
includes defective clutch and/or over-zealous shifting. my crx had 306k
miles on it and the synchros were perfect - no crunchiness at any speed,
in any gear.

 

sure. absolutely no point injecting if the momentum of the car is still
turning the motor.

 

Then Honda synchros are cones. We're talking Hondas here, not Porsches.

 

Interesting. One change I noticed in my 2007 Accord 4 auto over the
2004 is that with foot off gas it almost seems to decelerate like an
old-style drive-by-linkage manual!

On the other side, I notice GM is advertising a car that (apparently)
shifts to neutral while waiting at a light. Oh, technology! I often
do that myself when I catch a long cycle, can be two minutes at some
major intersections. I just get tired of standing on the brake that
long, besides saving a few drops of gas.

J.