Improving shifting

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
Today I decided to adjust my clutch, and man It made a huge difference. I was tired of the crunchy shifting and I did multiple things to try to improve it. The first thing I did was adding a hasport rmm and it made a difference but eventually it came back. The next thing I did is switch the transmission oil for some fresh Honda mtf is made a slight difference but the crunchy shifting was still there. I decided to adjust my clutch because I had read adjusting the clutch eliminates it so I gave a try and wow I recommend it to everyone to do this! I turned the thing at the end of the cmc clock wise 2 1/2 turns and crunchy shifting was completely gone!! I could shift fast without forcing the gears they just go in now and the clutch engagement is way better. I also tried vavoline mtf not sure if that help to but I’m pretty sure it did.



 

Jeffers

Senior Member
First Name
Jeff
Joined
Oct 10, 2019
Messages
187
Reaction score
182
Location
Long Beach, ca
Car(s)
2020 Si Coupe 'Panda look' purchased 11-24-19
Country flag
Nice work! Sounds like the clutch may have still been dragging just a little when the pedal was to the floor. And now it's completely disengaging. Allowing the transmission to slide into gears with no resistance.
 

Siiick

Senior Member
Joined
Oct 28, 2019
Messages
281
Reaction score
502
Location
Texas
Car(s)
2020 Civic Si, 2019 Corvette Z06, 2017 Fiesta ST
Country flag
Maybe I am in the minority here but I've not had any issues with my transmission. In fact, it continues to get better as I rack up the miles. During the first 1k miles or so it felt pretty notchy and had a lot of nibble on most of the gear changes. Now though at 3k miles, it's gotten much smoother - the stick slides into the gates like butter on most shifts. The only thing I can think of that would improve the experience would be to shorten the throws slightly. But beyond that, it feels great. Easily one of the best manuals I have ever had.
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #4
Nice work! Sounds like the clutch may have still been dragging just a little when the pedal was to the floor. And now it's completely disengaging. Allowing the transmission to slide into gears with no resistance.
I really think it was that, I should of done that since the beginning. Its kinda a shame that it came like that from factory. The stock clutch has been taking a beaten for awhile kinda surprised it still working probably
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #5
Maybe I am in the minority here but I've not had any issues with my transmission. In fact, it continues to get better as I rack up the miles. During the first 1k miles or so it felt pretty notchy and had a lot of nibble on most of the gear changes. Now though at 3k miles, it's gotten much smoother - the stick slides into the gates like butter on most shifts. The only thing I can think of that would improve the experience would be to shorten the throws slightly. But beyond that, it feels great. Easily one of the best manuals I have ever had.
You got lucky , lots of people have this issue since day 1. Your synchros are still breaking in so it should get smoother as you put more miles. With the first transmisión oil change you’ll feel a big difference. I remember when I did my first fluid change there was a lot of synchro material. The recent fluid change I did there was hardly any metal in the fluid. Acuity short shifter will definitely give you shorty throws :)
 

MutatedMango

Senior Member
Joined
Mar 24, 2019
Messages
394
Reaction score
158
Location
Philadelphia
Car(s)
'19 Civic Si FC3
Country flag
You got lucky , lots of people have this issue since day 1. Your synchros are still breaking in so it should get smoother as you put more miles. With the first transmisión oil change you’ll feel a big difference. I remember when I did my first fluid change there was a lot of synchro material. The recent fluid change I did there was hardly any metal in the fluid. Acuity short shifter will definitely give you shorty throws :)
At what mileage are you supposed to change transmission oil?
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #8
At what mileage are you supposed to change transmission oil?
I'm not really sure, it doesn't hurt to change it early though. I did my first trans fluid change at 8k
 



OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #9

saiko21

Senior Member
First Name
Sai
Joined
Feb 15, 2019
Messages
418
Reaction score
178
Location
Sacramento
Car(s)
2019 Civic Si Sedan, 2005 Toyota Corolla (Sold)
Country flag
Today I decided to adjust my clutch, and man It made a huge difference. I was tired of the crunchy shifting and I did multiple things to try to improve it. The first thing I did was adding a hasport rmm and it made a difference but eventually it came back. The next thing I did is switch the transmission oil for some fresh Honda mtf is made a slight difference but the crunchy shifting was still there. I decided to adjust my clutch because I had read adjusting the clutch eliminates it so I gave a try and wow I recommend it to everyone to do this! I turned the thing at the end of the cmc clock wise 2 1/2 turns and crunchy shifting was completely gone!! I could shift fast without forcing the gears they just go in now and the clutch engagement is way better. I also tried vavoline mtf not sure if that help to but I’m pretty sure it did.
what sort of adjustment you did?

Will it affect clutch pedal travel? Can you please explain them in detail as I wanted to know if it's fully disengaging the clutch or partially disengaging and riding the clutch unintentionally
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #11
what sort of adjustment you did?

Will it affect clutch pedal travel? Can you please explain them in detail as I wanted to know if it's fully disengaging the clutch or partially disengaging and riding the clutch unintentionally
The adjustment I did made the clutch fully disengage. And travel feels the same to me
 

saiko21

Senior Member
First Name
Sai
Joined
Feb 15, 2019
Messages
418
Reaction score
178
Location
Sacramento
Car(s)
2019 Civic Si Sedan, 2005 Toyota Corolla (Sold)
Country flag
The adjustment I did made the clutch fully disengage. And travel feels the same to me
I read somewhere that making the clutch fully disengage causes the fingers on the pressure plate move more and reduces the pressure on the clutch plate after sometime causing the clutch to slip and premature failure. I am not entirely sure though.
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #13
I read somewhere that making the clutch fully disengage causes the fingers on the pressure plate move more and reduces the pressure on the clutch plate after sometime causing the clutch to slip and premature failure. I am not entirely sure though.
Yes of course it will. That's when you go to far in, the clutch doesn't fully engage causing it to slip. So pretty much what I did is tighten the slack on the peddle. I left a tiny bit of slack
 

saiko21

Senior Member
First Name
Sai
Joined
Feb 15, 2019
Messages
418
Reaction score
178
Location
Sacramento
Car(s)
2019 Civic Si Sedan, 2005 Toyota Corolla (Sold)
Country flag
Yes of course it will. That's when you go to far in, the clutch doesn't fully engage causing it to slip. So pretty much what I did is tighten the slack on the peddle. I left a tiny bit of slack
:hmm: That slack is to compensate automatically for clutch wear as it's hydraulic clutch. anyway I will check this weekend as my only problem is 1st to 2nd gear change when driving aggressively
 
OP
Jes_si562

Jes_si562

Senior Member
First Name
Jesse
Joined
Feb 20, 2019
Messages
390
Reaction score
168
Location
Long Beach
Car(s)
2018 civic si. 1990 Honda civic w d16z6 swap (sold)
Country flag
  • Thread starter
  • Thread Starter
  • #15
:hmm: That slack is to compensate automatically for clutch wear as it's hydraulic clutch. anyway I will check this weekend as my only problem is 1st to 2nd gear change when driving aggressively
I had that problem to along with 3rd, after i did the adjustment its gone.
 

Top