MT Accumulator Delete Mod (ADM) and BS Thread

So I just fucked up. While trying to do this job, I rounded off the nut going to the accumulator from the master cylinder . I can’t get the damn thing off.

any ideas on how I can get it out without causing any major damage.

 

Were you using a line wrench? If not, maybe you can still sneak one on the screwed up tube nut….if not, vise grips….

 

Vice grips. The bigger the better.

Whatever you do, do not use heat.

 

Open end 10mm wrench

thank you for this. I will not use heat!


For now I’m putting it back together until i have more time to mess with it. Vice grips are noted, though idk if I can get them in there.

 

Pulling the cat support is easier than getting to the top heat shield bolt and gives a lot more room to work.

If you rounded the flare nut, I would not proceed unless you have everything needed to replace the line just in case. If it is boogered up and cannot be tightened well enough, that is where you will be stuck.

Note that the line support on the trans is bolted on to the trans.

Good luck.

 

In the future, line wrench. Not vise grips or open end wrench for a good condition tube nut. Vise grips might be the only option at this point, though I’d try a line wrench first myself.

 

This is better lol

 

Yeah I got it back together and I’m waiting on my buddy to help me bleed the clutch in the morning. I got two bolts to hold the accumulator. I feel so dumb by rounding that off because I didn’t use a line wrench.

I wanna say that I’ll try a like wrench, and maybe if it works. That will do. If not, I’ll have to put this mod on hold indefinitely.


One question for you all. I called a mechanic that maybe out here in a week or two. He’s telling me that I can’t bypass that accumulator because it’s a shock absorber for the clutch fluid and if taken off, the clutch would be “extremely hard to press”.

Is this something yall experience? Because i don’t need to be working out my leg when rowing my gears.

I always thought the clutch would feel much lighter, almost like a Honda clutch.

 

Nah, he’s not speaking from first hand experience.

The only real reason the accumulator is there is so beginners don’t shock load the driveline as much when they dump the clutch. That comes at the cost of a more vague engagement for those who know how to drive a stick.

 

I see, that’s what I’m thinking but I don’t want to make him think I’m trying to tell him he don’t know what he’s doing. I’m not.

I remember I got the clutch assembly replaced for a squeak a while back, first couple days after the clutch felt light and quick to respond. im thinking this is what it will be with the accumulator off.

Is this an accurate assessment would yall say?

since I rounded off the nut at the top of the accumulator. I don’t think I loosened it any. Is it normal for a bit of thread to be showing? Like in the pic I posted.
I’m afraid of it leaking once I start filling it up again.

 

When the pedal was replaced, they had to disconnect the master cylinder. They very likely had some air left in the system when they gave it back to you. Thankfully, this clutch system basically self bleeds if there’s any air. I even bled mine normally when did the accumulator delete using my brother to work the pedal and mine was super light when done - after a few drives around it was back to normal feeling. You will probably have that happen no matter how well you do the job. I personally replaced my pedal and not doing anything but gravity bleeding by myself and pumping the pedal a bunch got it back to normal bled status.

Highly doubt you caused any issues, other than it now being more difficult to remove. I don’t think there will be any operational problems driving it right now. If it didn’t budge, it didn’t let any air in.

 

So it was actually the air that made it feel light? Man, here I was thinking the accumulator needed to “accumulate” fluid and that’s why it was lighter. Thanks for that great insight.

Yeah I’m thinking I just rounded it off and nothing more. Just wanted a second opinion on the bit of thread showing.

 

You have enough leverage against the accumulator with the pedal that you don’t really feel the accumulator at all when pressing the clutch. It’s just on the release where the accumulator dampens the engagement of the clutch so that it doesn’t (can’t) fully shock load the driveline.

Thread showing is normal, you should be perfectly fine. Make sure you are spinning the nut right direction also. Since it’s up above and facing downwards, it’s easy to get confused. With you laying underneath, it’s clockwise, aka righty loosy. Easy to screw it up if you’re trying to break it loose but actually going in the tightening direction.

 

Flare nut crowfoot might be just the trick, not sure if you have room there for a conventional wrench (I’ve been getting them from Tekton lately and they fit tight, almost too tight…but better than the alternative). Good news is since you rounded it over with a conventional open end, you only knocked off 2 of your 6 corners!

 

The clutch feels great, not hard at all

 

This is great info. I thought the “spongy” clutch feel was because of the accumulator. But is just the release that’s dampened? So the actual feel won’t change once removed.

I was spinning right, I just didn’t get enough engagement with the open end. Should have done more research on the type of fitting I was working on. It was only that one too. I’m getting a set of flare wrenches tomorrow

I hope it was only 2 lol thanks man

with out the accumulator? I would hope so lol

 

Ended up getting around to installing the @Firn disk! Much thanks!

 

Sounds like he's reading the book. Few techs at my last job had similar reactions when I talked to them about mods to my truck. Turns out I was the only guy in the shop who ever had to deal with 3rd gen taco clutches. Lol

Those flare nut wrenches are dynamite. Double duty as brake line wrenches for when you eventually have to replace the hard lines from your calipers (not complicated)

 

latest posts on VFtuner facebook seem to indicate EROM 1.2 may be released soon? Anyone have any info on this?

 

I got around to installing the Clutch Accumulator Delete Disk from @Firn yesterday. The shifting is so much better now! No more granny shifting the Taco. I really wish I had done this mod sooner. Also thanks to @ZColorado for his suggestion to use a vacuum bleeder.

As others have noted, use a hose clamp on the supply hose from the brake fluid reservoir. I used these clamps from Lisle. You probably don't need to use both but they're sold in pairs so that's what I did. I had minimal fluid loss this way and after using the vacuum bleeder no issues with the clutch pedal not wanting to return.