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what can cause bad gear shifting?


E=MC2
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Hi guys, i have strange acting gear shifting on my VTi aerodeck, and i need your opinion.

Last summer i done complete clutch service. I changed clutch oil, slave cyl., installed brand new clutch kit, and greased all moving parts. And result was great except little hard shifting when i slowly move lever, no metter if oil is cold or warm (situtation is some better when i warm gerabox).

When i torture the car, shifting is good, but when i try to drive slowly, and shift gently, i feel something like small step, and sometimes i feel gears engaging on lever.

Today i have decided to change oil, and after reading manual and some forums i fill it with Eneos 10w40.

And now on cold gearbox i think that shifting is worse, but on warm is little better, but that small step and gear locking feel is still present.

Allso, sometimes reverse shift is hard (if i do not want to be rude and wait gearbox to drop smoothly, i need to repeat it few times), and all the time 2nd to 1st rolling shift need some force.

Synchros are ok because i never have grawling, and i shift precise and fast, but those upper problems leads me to think that from some reason my lever is not calibrated well. Is that engine mounts or stabilizers, engine bad position, lever joints or bushing, something inside gearbox or some gremlins, i am not smart enough to figure

Help, i'm very sad and mad

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All Honda manuals, and many owners sais that 10w40 can be used. Ok, i have LSD, but even my manual says that 10w40 can be substitute for MTF. Allso many owners claims that they ruined their box bearings with thicker oil.

What is MTF grade? I doubt that it's any thicker than std. engine oil, and what can be used as good MTF substitute?

And what do you think about cause of my problems which are the same before and after oil replace. Ok, i will consider another oil, but i would like to solve the problem, if the cause is something else other than oil.

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Yes, that is temperature range during year, and now whit this 10 40 i have to strugle with gearbox when the oil is cold, and outside is only arround zero. But philgor dont you think that thinner oil will make shifting more dificult?

And i still cannont get rid of impresion that from some reason lever is not possitioned right. Reverse gear need sometimes pulls untill gears position to fit. Ok, i can pull little harder, but thats not solution, i dont like to torture gears. Allso, second to first need additional force, third to second need little throtle blip.... Do you think that it is only oil, and nothing but oil, or can be some way to mechanicaly calibrate something.

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if you go from 10/40 to 5/40, the oil viscosity at cold will be less, but will be the same when up to tempture. so a thinner oil would help on cold day's but it would stay at the same thickness as 10/40 when warm

the best bet is to ask the oil man, he could advise you on what oil to use.

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