What oil to use to stop gear crunching?

[spetz]

On my run around (1990 2.0L Camry)
3rd gear crunches a lot, to the extent I have to double clutch to downshift and go into 3rd slowly
Now, I realise that it'll never go away, but is there any oil to at least make it a bit better?
I have ATF Dextron III in it now which is recommended for that car
It crunches less when it's cold/more when hot
So, should I get thicker oil? Or just leave what's in it and deal with it?

[destrukshn]

pardon?
your using atf dexron 3?
that's for autos? who recommended that?

[Limbo]

dexron 3 is Auto box oil.
Most manuals use a thicker oil like 75-85.

[dsp26]

pardon?
your using atf dexron 3?
that's for autos? who recommended that?

lol imagined you saying that with an english accent, some some specs, a tux and the monopolu guy hat... prey much like the monopoly guy hahaha

[destrukshn]

lol imagined you saying that with an english accent, some some specs, a tux and the monopolu guy hat... prey much like the monopoly guy hahaha
lol
lol
you couldn't imagine that
though i do know of 1 asain guy, who has a scottish accent, and his chinese.

[EuroDude]

Drain that fluid and put Toyota MTF in there (buy it from a toyota dealer), and if it still crunches then its likely the Synchros are gone and need replacing.

[destrukshn]

flush it out twice though.

[JohnL]

The factory recommended 'oil' for at least some manual boxes is ATF.

[teaseR]

i heard putting engine oil is good.
my mate put mobil1 10w-30 in his b16a civic GB and it shifts like a dream

[bennjamin]

how many k's on the current clutch ?

[Klayemore]

Check ur synchros. Mine are gone and crunch like ****. It's fun.

[Spicey]

+1 to some manual boxes needing ATF.

If it crunches worse when hot i would be putting all my money on your synchros being shagged and changing the oil wont do diddly-squat.

[EuroDude]

I used engine oil in my civics 5MT tranny - works fine, no probs.

I believe Honda MTF is quite similar to Honda engine oil anyway.

[destrukshn]

yeah, honda used to use engine oil for the gearbox too.
but since then, they have changed that.
even for the older models.

[jdmTYPE R]

check your master cylinder and your slave if there is any leaks that can course it to crunch..

[spetz]

It's only 3rd that crunches
I do assume it's the synchro for it
Though the gearbox was rebuilt 70,000km ago. Clutch is strong

Like I said though I realise it wont fix the problem, but maybe an oil that will help?

Also, the ATF is recommended for that car

[jn86]

redline light shock, or you could even try automatic transmission oil for a cheaper alternative which also work great from what i heard.

[bigjo5]

isnt ATF recommended for manual corrollas not camrys?

[Elwood]

Is GM Syncromesh compatible with the camry?

[supride]

Fulli Sik 12" sub woooooofaaaa will overcome crunching problems. just crank it up yo!

once syncrho is gone theres no oil to stop it from crunching.
time for 2nd hand box... or rebuild :p

[OMG.JAI xD]

Fulli Sik 12" sub woooooofaaaa will overcome crunching problems. just crank it up yo!

once syncrho is gone theres no oil to stop it from crunching.
time for 2nd hand box... or rebuild :p


lol .. sound like the mechanics that work at my place..
(though we dont practice such behaviour) lol.
gotta love the dodgyness..

=]

lol you noticed it crunched in 3rd .. so you double clutched till it wont stop crunching.. -.-"
cudda saved a syncro by checkin it out wen it first crunched :/


as all replies said.
check syncro.
change oil (flush).
etc etc
i dont know how atf can be recommended for a manual gearbox.
id rather stick with genuine honda products for everything.

[JohnL]

i dont know how atf can be recommended for a manual gearbox.

IF you think what ATF does, it lubricates gears and bearings, but is also formulated to work with clutch packs etc. There's no reason why it won't work to do a good job of lubricating the gears and bearings in a manual box, the only issue being if it will work with the synchro rings properly. Some synchro rings are designed to work with ATF. I woudn't use it in a box where it isn't specified.

[sinobi]

i'm using redline blue
it works but cost abit...