Help!!!! With Shifting

I don't know anything about what you're diving engine-wise, but perhaps when accellerating you can up-shift when the RPM hits 1,800 RPM. When decelerating, you can down shift (one) when the RPM drops to 1,000? Don't sweat the minor rpm differences as long as your double-clutch technique is fairly good. Be sure to tap the accelerator when down-shifting immediately following the initial clutch press as you're simultaneously leaving one gear for another.

 

I didnt even know they had 6 speeds, I never seen one in a truck anyway myself

 

If it is a six speed in a medium size straight truck it is probably synchronized and you can drive it like your Toyota.

 

Shift by feel not by sight. Ignore the tach and speedo.

 

Wow... Glad you're not driving my equipment. To the OP....take this advice... Ignore that post in its entirety.

 

What are you driving? I know in my truck you don't upshift at 1800, listen to the engine she'll tell you when to ease it into another gear.
Since I don't use 1st start with 2nd, run it to about 1350 rpm ease it out and into 3. Pretty much the same for the rest . Down shift is a bit different. With my 10 speed there a 400 rpm difference between gears. So in 10th I let the rpm get to about 1100 or 1000 put it out of gear ease the foot feed to around 1400 or 1500 depending on the rpm you took it out of 10 and ease it into 9, and so on. Skipping gears are a bit different. Just remember EASE the darn thing in and out of gear and she will be happy

 

on a flat roll accererate and upshift see what the rpm differance is, it should be the same when you downshift. find out the proper operating range for the engine by seeing if the tach has marks or read the manual. most engines have thier own operating range, find out what engine you have and reseach the proper operating range ...........happy trails

 

Are you floating or Double clutching? When floating the gears do you just ease off enough for the shifter to come out then kind of hold your foot there until you have completed the shift?

 

ATM and probably till today is over I drive and International 4300 with the DT466 worthless engine and a 6 speed. My advice is that unless you have someone sitting in your jump seat then float the gears (meaning, don't use the clutch) take your time and don't force the gears. As you shift keep an eye on the tach and notice where the tach is when the synchro's open up and let you into each gear. I would start by pulling out of each gear at a fairly low rpm beacause most engines don't like being wound to tight anymore. In my truck I wind up to around 1800 and then let of the fuel and pull out of the gear at the same time and then I slowly pull the shifter to the next gear slot and put a slight pressure on the stick pulling it into the gear and when the synchros catch up then it falls right in. With that said, you really don't even have to double clutch my truck, that six speed will clutch shift just like to older 5 speed or and four wheeler tranny so if you have someone sitting with you watching you then just clutch shift either like a 4 wheeler shift or practice double clutching. A six speed is pretty easy so don't sweat it and take your time and as you learn to hit the gears one way then start shifting in one of the other styles and that transmission can teach you to shift however you like best after some time. Just be carefull downshifting like a regular car because it is easy to over rev a diesel, I leave it in the gear I am in until it is almost back to an idle before I go down to the next gear.