| Ultramaroon |
04-29-2021 03:30 PM |
Quote:
Originally Posted by T_Squadrito
(Post 3428014)
no money shifting happening here. I think maybe there was a misunderstanding with what I said. Totally possible since I was posting from my phone and posted a block of text the size and shape of Minnesota. But I agree. No, the issue is just going up to second. It doesnt just "fall" into gear so to speak until around 4k RPM and I just wanted to see if thats normal for other drivers too. Once the transmission is warm I can smoothly shift as low as 3.2k but just after startup (usually warm the car up for a few minutes before moving) if I shift at a lower RPM then it is heavy and clunky and if I am at 2.5k or below then I definitely hear the synchros as I go into gear, but at higher RPMs or once it's warm, all good. The fact that it is an intermittent problem that is fixable by revving higher before gear change doesn't scream damage to me but I do suspect my tranny fluid change later will (hopefully) do the trick. Ill update you all if there is an immediate improvement but I suspect it will take a few cycles.
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Quote:
Originally Posted by NoHaveMSG
(Post 3428036)
Change your transmission fluid before doing anything else. I like Redline MT-90 in mine.
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I use MT-90 as well. Improved feel with little increase in noise.
I'll run through my spiel again. You might regret changing fluid because of the increased noise. Consider that.
This transmission has relatively small syncro clutches. I hate leaning into the gearshift.
The spinny parts of the gearbox, which are all swimming in thick oil, are driven two ways. - The input shaft drives them at all times.
- When a gear is engaged, the output shaft will also drive them. Think engine braking.
With cold, thick oil, in neutral, clutch disengaged, the gears all quickly drag to a halt. The trick in getting from first to second in the cold is to not pause in neutral. Done quickly enough, with a gentle flick, no pause, it will fall into second. This is because the shift collar is already waiting for an opportunity to mesh with the target gear before the syncro clutch has to do any work.
In neutral, with clutch disengaged, once the gears all drag to a halt, they must then be spooled up again by the output shaft via the syncro clutch. That's where the difficulty is encountered.
If I don't shift quickly enough, while still in neutral, I engage the clutch and spin up the gears with a blip of the throttle. Then while they are still spinning faster than the output shaft, in one motion I disengage the clutch and again go for engaging second gear.
This is textbook "double clutching." It also helps with downshifting in all cases, including first gear on a roll.
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