1jz r154 wont shift down

[driver005s]

Yesterday I drove the car for the first time after the swap.
The tranny shift up fine without problem but when gearing down it won't go in to gear.
I bleeded the line 3 time.

No matter what gear you try to go in it won't go back into gear unless you yank it.

 

[te72]

Try rev matching sometime.

Sounds like there might be something off with your clutch adjustment though, hopefully someone with some experience there can chime in.

 

[INTIMAZY]

Any grinding?

Just out of curiosity, what other manual cars have you driven?
The R154 is quite a beast to drive. "Smooth" or "easy" are NOT words that go with that gearbox. On the scale of Honda 6-speed to International Harvester low range, The R154 is pretty close to the "difficult" end along with T-56's.

 

[te72]

On the scale of Honda 6-speed to International Harvester low range, The R154 is pretty close to the "difficult" end along with T-56's.

Interesting, I may have to drive one of these Honda 6-speeds if you think a T-56 is a difficult transmission to drive with... I don't think I've had a more accurate transmission in anything I've ever had.

 

[IBoughtASupra]

The R154 is a truck transmission. It's not smooth by any means. How's the free play? Make sure it's in spec according to the TSRM.

What gear oil did you use?

 

[INTIMAZY]

Interesting, I may have to drive one of these Honda 6-speeds if you think a T-56 is a difficult transmission to drive with... I don't think I've had a more accurate transmission in anything I've ever had.

I have to correct myself, a MUSTANG T56.
The GM and Viper T56's were different breeds of animals

 

[te72]

Ahh, I've never driven one of those. Only ever the T56 in the SS Crapmaro I had. Beautiful drivetrain, crappy package.

 

[Dylan JZ]

OP: syncros? my original R154 was sort of like that with 2nd gear, only worse.. perhaps try Redline MT-90 trans fluid if you haven't already.

Ahh, I've never driven one of those. Only ever the T56 in the SS Crapmaro I had. Beautiful drivetrain, crappy package.

you wouldn't have had that problem with a nice Toyota/Lexus with a Japanese v8 under the hood...

trololol :icon_mrgr

 

[te72]

OP: syncros? my original R154 was sort of like that with 2nd gear, only worse.. perhaps try Redline MT-90 trans fluid if you haven't already.

you wouldn't have had that problem with a nice Toyota/Lexus with a Japanese v8 under the hood...

trololol :icon_mrgr

Could be a syncro issue...

As for the other bit, I meant the whole drivetrain, the engine being part of the beauty. Just everything bolted to said engine (other than the trans) was crap.

 

[Dylan JZ]

Could be a syncro issue...

As for the other bit, I meant the whole drivetrain, the engine being part of the beauty. Just everything bolted to said engine (other than the trans) was crap.

:: badger ::