Driftmotion clutch line

[Sawbladz]

I am thinking I will have to do just that. I spent some time today and this is what I happened.

Took the line off the car again. Checked the threads on the master and the line. Master threads look fine as far as I can see. The threads on this line look the same as the first Driftmotion line that I installed. All of them are pefect except the one closest to the flare. It looks like the thread was flattened but not cross threaded. It still threads in easily by hand. This leads me to believe that the hole may not be tapped deep enough.

I then took the line off and threaded it into the old master. It threaded all the way in by hand and then stopped and came tight. It felt exactly the way you would expect it to feel in a perfect world. My theory is that on this master the rubber where the line flare meets the master cylinder has been compressed and hardened in this shape over time. With the new master the rubber is fresh and larger. This explains why it feels different when tightening the new line into the new master. It is compressing the rubber making it more difficult to turn but not coming tight because the flare has not fully seated.

Does this make any sense or did I fall down over the weekend and hit my head kinda hard? lol

EDIT: took a pic of the first Driftmotion line. Looks the same as the second one now. Guess I am buying two of them at least. lol I would get pics of the master but from what I can see it looks fine and I don't feel like pulling it out unless I have to. I don't fit well under my dash.

 

[RedGT]

I remember now what I had to do. When I installed I realized that the nut would bottom out and the line would still be loose. This line is a compression fitting so there needs to be a tight fit. There should not be any rubber that your describing... Anyway, What I did was grind off the first one or two threads on the nut so that it would not bottom out. after that it fit perfect. just be careful threading it in with the ground off threads. it will crossthread much easier.

 

[MarkIII4Me]

I got around to putting fluid in the master and bled it. No leaks whatsoever from the driftmotion line. The master cylinder is a new non-aisin one from Napa btw.

 

[Sawbladz]

I remember now what I had to do. When I installed I realized that the nut would bottom out and the line would still be loose. This line is a compression fitting so there needs to be a tight fit. There should not be any rubber that your describing... Anyway, What I did was grind off the first one or two threads on the nut so that it would not bottom out. after that it fit perfect. just be careful threading it in with the ground off threads. it will crossthread much easier.

You're right. I just went and checked and it looks like that's all it needs. This may be very tricky with the grinder. I guess I will clean up the thread after with a die.

 

[Bri7man]

I have a new aisin master and after gridning off 2 threads it is still very loose, keep going or what??

 

[YoungGunSupra]

i used the DM line. works perfect

 

[Bri7man]

Aaron said 5% of master cyls do this and to dremel off 2 threads, should I keep going or what? It's really loose still.

 

[Moy]

I installed mine with no problems what so ever. Doesn't leak one bit

 

[Bri7man]

Alright guys enough with your awesome stories of it working perfectly, I is getting jealous.

Need some input from someone whose been through this.

and again,


I have a new aisin master and after grinding off 2 threads it is still very loose, keep going or what??

 

[ben1984j]

I had to do this with mine and if I remember right I ground off about 2 or 3 threads. You should be getting close...

 

[Bri7man]

I had to do this with mine and if I remember right I ground off about 2 or 3 threads. You should be getting close...

Thanks!

 

[Bri7man]

I'm like 31/2 - 4 thrads in now what's going on? This isn't right I doubt that last bit will snug it up there were like 3 threads of slack with the stock one. Look at all that play!



Cheapo harbor freight dremel is fried(don't care) and all the bits/accessorries wasted(don't care)

Spending 5+ hours on a 5 min job(priceless)

 

[mkiiichip]

i see your about out off threads, so you feel the nut is tight, and it still has play like that? i have found that with brake lines (and clutch lines) that if it leaks it needs to be tighter.

I think the threads are bottoming out. Try removing threads to make it look like this, but i dont think you have room with the one in the video. you have another line right?

 

[iwannadie]

If it were me, I would replace the MC and return the one you have. Driftmotion sells them fairly cheap.

With my full SS line and MC(from driftmotion) I had to really tighten it much more than I felt comfortable with doing as well but it eventually sealed and hasn't leaked a drop since. It was on there dam tight, I felt like I was cranking on lug nuts or something. Worst case, tighten it more and see what happens.

You should be able to measure the MC and see if it is actually bottoming out also.

 

[Bri7man]

I feel if i tighten it anymore something will break/strip. I already had it tightened more than what i was comfortable with int he vid above. Aaron says to tighten it more but i really feel this line I got has a defect..

 

[Bri7man]

Alright so I tightened it all the way till it the nut was jammed against the MC and the nut rounded a corner on the hex. It's still loose and leaky.

Did I dremel it right? Was I supposed to dremel all the way through as I did or just the threads so the metal is flush the first 2 threads?

 

[mkiiichip]

You need to dremil the fitting like the nut i pictured in my last post. The short one is junk now.

The line seals by smashing the two cone shapes together, you no longer have enough threads to seal.

 

[Bri7man]

yep, I fucked up.

Aaron is really nice, even through I interpreted his instructions wrong he is sending me a new one and modifying it himself so it will fit.

The proper way to mod the hose if you are of the 5% Aaron says of MC's that don't fit is simply grind the first 2 threads down about 1/32 of an inch, takes about 10 seconds. Reason being I was having so much trouble is I completely misinterpreted Aaron's instructions and ground the whole thing down..

So this is a very good mod, highly recommend it after realizing what I did wrong. Don't let my misinterpretations above change your mind!

 

[fonz87]

i had the DM clutch installed last year on the supra, i think it was one of the greatest investment well spent!