QUIKAG

I would say about every 500 shifts or so, for whatever reason, like shifting a touch too fast, too sloppy, not paying attention, whatever, I'll grind the gears on an upshift.

Sometimes it's just a very slight grind where I'll back out immediately, depress clutch again and then go into gear and other times, it'll be a bit more significant grind where I'll be trying to get it into gear with a touch more force and it'll grind.

It's not a constantly reoccuring thing, I don't think it has to do with the gearbox as it shifts perfectly after that and it's a very rare occurance, so it's just my own stupidity or lack of paying attention.

So, how bad is it really? I would imagine a microscopic amount of metal is shaved off the teeth and I would HOPE there is a magnet at the bottom of the gearbox that collects the metal shavings? Also, I would hope and imagine that Honda built occasional grinds into the design of the gearbox, so it won't eventually require replacement after 50,000 miles or something?

Anyway, just curious because even though I'm leasing this car and will give it back at 36k, I just don't like 'abusing' cars. I run my car hard and redline it frequently, but do take care of it with synthetic oil changes, warming it up before flogging it, etc.

RED MX5

[QUOTE=QUIKAG,Oct 29 2006, 10:19 AM]I would say about every 500 shifts or so, for whatever reason, like shifting a touch too fast, too sloppy, not paying attention, whatever, I'll grind the gears on an upshift.

raymo19

Same here. It's usually an upshift with a bit of inattention or aggravation in traffic. But I have been known to completely blow the 1-2 during spirited driving as well.

These things happen. My tranny seems to be very forgiving so far.

QUIKAG

Good to see and hear that a 2000 MY car is still holding up. I figure it will be fine, but the noise is not appealing.

To answer the question, it's typically because of inattention or lazy shifting. Guess it won't blow up on me.

iam7head

try to use GM syncromesh juice next time when you changing the MTF, most of the honda tranny(not sure about the S, but most F, H, d and B trans) grind problem can be cure with the juice.

GMSM friction modified

cdelena

It is simply the way this transmission operates, although it is not obvious with cooler temps. When the ambient temp is over 95F, or the transmission is overheated from hard low gear running or continuous high speed running, it grinds. Nothing you can do under those conditions but slow the shifts. I don't expect grinds as seldom as you are reporting will make any difference in 36K miles.

RED MX5

[QUOTE=QUIKAG,Oct 30 2006, 03:51 PM]Good to see and hear that a 2000 MY car is still holding up.

RED MX5

Oh yea, the car does shift more easily with fresh oil. I use Honda MTF.

FISH22

i kick myself in the ass every time this happens. just picked up a new 06, and i have grinded two times already, just under 500 miles....trying to get used to this new pansy clutch

HiRpmVTEC

was it worth the trade?