Help from anyone who has done the qd32 gearbox swap

[bochoda]

Hi all, I am wanting to talk to someone who has done the gearbox swap from the td27 gearbox to the qd32 gearbox.

I have just done the swap and need to clarify a few things
Thanks in advance
David

[lax2wlg]

Talk to sibainmud (if hes still around here)

He has done exactly this mod if I recall correctly.

Something about dual mass flywheel difficulties but it does work.

Otherwise this thread has info on the swap: viewtopic.php?f=25&t=37329

The late model TD27 gearbox from a caR50 Terrano is the same unit, bellhousing differences etc aside. Thats pretty much a direct swap in.

[bochoda]

Thanks for that I will try an send him a pm, just need to know if I was suppose to swap bell housings or will it work with the qd32 bell housing, and will I need a qd32 slave cylinder.
As I said I have put the qd32 gearbox and bell housing in all bolted up sweet but when I pushed the clutch in pedal went to floor then when i pulled it back up and tried again pedal went hard then blew the slave cylinder out.

[Crash bandicoot]

Thanks for that I will try an send him a pm, just need to know if I was suppose to swap bell housings or will it work with the qd32 bell housing, and will I need a qd32 slave cylinder.
As I said I have put the qd32 gearbox and bell housing in all bolted up sweet but when I pushed the clutch in pedal went to floor then when i pulled it back up and tried again pedal went hard then blew the slave cylinder out.

slave is too short for the amount of fork travel.

[bochoda]

Thanks for that I will try an send him a pm, just need to know if I was suppose to swap bell housings or will it work with the qd32 bell housing, and will I need a qd32 slave cylinder.
As I said I have put the qd32 gearbox and bell housing in all bolted up sweet but when I pushed the clutch in pedal went to floor then when i pulled it back up and tried again pedal went hard then blew the slave cylinder out.

slave is too short for the amount of fork travel.

So if I get a qd32 slave, will that solve the issue???

[Crash bandicoot]

Thanks for that I will try an send him a pm, just need to know if I was suppose to swap bell housings or will it work with the qd32 bell housing, and will I need a qd32 slave cylinder.
As I said I have put the qd32 gearbox and bell housing in all bolted up sweet but when I pushed the clutch in pedal went to floor then when i pulled it back up and tried again pedal went hard then blew the slave cylinder out.

slave is too short for the amount of fork travel.

So if I get a qd32 slave, will that solve the issue???

it could or it could compound the issue. by being bigger, but then the master not having the stroke to fill the qd32 slave....ideally you want to preload the clutch fork so when the slave pin is right back inside the cylinder the fork is about ready to engage the thrust bearing onto the pressure plate.

[ChurchurDan]

Check the distance between the mounting points and the clutch fork, you may find it is mounted further away. If so you could try putting a longer push rod into the slave cylinder.

[bochoda]

Well I needed a new slave anyway so I bought a QD32 one and it looks exactly the same as my TD27 one. The only drama it didn't come with the pin so I'm guessing its of to the wreckers and get a QD32 pin and see what the length difference is

[kiwinoz]

Something about using the pivot pin from a manual R20 Terrano II R30a, the Mistral looking Terrano, but think only the Auto Mistrals are in NZ, Jap imports.
Or making one???

Did you use the V6 crossmember?
Which Drive shaft fits?

[Crash bandicoot]

you can always just get a 110mm M8 or M10 bolt and grind it down to suit. it is just a pin after all.

[bochoda]

Something about using the pivot pin from a manual R20 Terrano II R30a, the Mistral looking Terrano, but think only the Auto Mistrals are in NZ, Jap imports.
Or making one???

Did you use the V6 crossmember?
Which Drive shaft fits?

Shoot, I knew it was going to be something like that......guess I'm gonna have to drop the box out again.

Not sure what crossmember it was as I asked the wreckers for a v6 on but I still had to drill new holes.
Drive shafts aren't in yet as I wanted to sort out the clutch first. Going to see if my TD27 driveshafts fit will let you know once I put them in.

[bochoda]

you can always just get a 110mm M8 or M10 bolt and grind it down to suit. it is just a pin after all.

Yeah making one sounds easier then finding one, would that work or be suitable to us a bolt. Don't want to do anything that would stuff it up

[Crash bandicoot]

you can always just get a 110mm M8 or M10 bolt and grind it down to suit. it is just a pin after all.

Yeah making one sounds easier then finding one, would that work or be suitable to us a bolt. Don't want to do anything that would stuff it up

I had to do this when we put the nissan box and skyline engine in my hilux as the hilux master didn't have enough stroke to push the nissan slave far enough.

basically i took a 110mm long bolt with a full thread shank, drilled a hole through the seat on the clutch fork where the pin usually resides and then wound on a nut right up to the head,

put a washer on then put the bolt through the clutch fork,

followed by another washer,

wound another nut on then did it up until the bolt reach the bottom of the cup/piston inside the slave cylinder. took it for a drive still a little stiff so wound the bolt in some more to preload the clutch fork....

The beauty of this is when ever i cooked the clutch(which was a few times when turning 33 inch mud tyres on 4.2 diffs), i'd adjust the bolt out a little and it would have enough bite to get my truck home.

Made the hole in the clutch fork slight bigger so the bolt could pivot a little.

[bochoda]

So is it the clutch slave cylinder pin that is too short?? Or is it the clutch pivot pin that is too short??

[ChurchurDan]

The rod between the slave cylinder and clutch fork. The fork pivots on a ball so you cant change that. On nissan the rod is normally about 8mm diameter with rounded ends, they are really easy to make out of some rod or an old bolt or even an old screw driver.

[bochoda]

Ok so I know the one your talking about, thankfully it's not the pivot one as that's inside the box and I didn't want to change that one lol, I still have my old slave cylinder so I will make a new pin that's about 10mm longer and try that.
Thanks

[slide]

The rod between the slave cylinder and clutch fork. The fork pivots on a ball so you cant change that.

The fork pivots come in a variety of lengths, so don't rule that out yet.
Also the release bearings can be different lengths, and clutch forks can be straight, or have a slight curve.

Start with the basics, don't make any assumptions and it'll be an easy fix

[bochoda]

Ok, I put the old and the new slave cylinder up and using the pin that I had and it's about 10-15mm short, so I will make a new pin from a screwdriver I broke the handle from and will see what happens.

[kiwinoz]

Hmm...... it's the fork pivot pin inside the bellhousing I was talking about. Has a ball end, needs to be about 20mm longer, then the standard slave cylinder and push rod will work with the same travel. The longer pivot pin has the other end of the fork already close to the clutch.

Good luck, have fun.

[bochoda]

Well here's another update, made a longer slave clutch pin, ended up being about 40mm longer. I think it should have been the clutch pivot pin that needs to be longer but this is working so will stay with this for now.

I used my TD27 driveshafts as the difference was only 20mm, Not too sure whether this is going to cause any dramas or not if anyone's got some advice on this and if it's going to cause dramas can you please let me know.

Have given up on the idea of doing the power steering box as idler arm mod as it was too hard to find the right pitman arm, maybe I will have to try again further down the track lol

Anyway my build is nearly over and it will be back on the road again soon, can't wait to get out on the tracks and test it all out

[lax2wlg]

Good update

I used my TD27 driveshafts as the difference was only 20mm, Not too sure whether this is going to cause any dramas or not

Seems like there were about a million different lengths sizes of d/shaft.

Initially I put the original TD27 non-turbo C200 shaft back in (970mm). When cycling the rear susp. (2" Extended shocks) you could hear it binding and trying to ram itself into the stern of the transfer case. Now with the 950mm shaft its all good.

Sibainmud did this with the same gbox and 970mm shaft.

However there would have been other contributing factors, such as 20+ psi, launch control and probably a hard landing.

Front d/shaft seems to be okay (almost full extension), though I carry a spare front d/shaft which probably helps.