:::RHMT::: Real Home Made Turbo

General Category => Hybrid/Tech => Topic started by: jdmhatchracer94 on January 10, 2010, 03:03:41 PM

Title: -4an to big for clutchline?
Post by: jdmhatchracer94 on January 10, 2010, 03:03:41 PM
okay didnt have the stock line but I had about 3ft on -4 ss line i picked up a couople fitting put it all on and nothin. I have pressure to the pedal at all brand new clutch set? My question is with the volume of the -4 line is it to big for the master to acualy put pressure to the clutch?
Title: Re: -4an to big for clutchline?
Post by: gooseman on January 10, 2010, 03:25:36 PM
Gravity bleed.
Title: Re: -4an to big for clutchline?
Post by: 92CXyD on January 10, 2010, 03:27:42 PM
does not matter too much about the size of the clutch line as it does the piston are in master cylinder and the piston area in the slave cylinder.
Title: Re: -4an to big for clutchline?
Post by: snm95ls on January 10, 2010, 03:33:25 PM
-16 would be better.
Title: Re: -4an to big for clutchline?
Post by: gooseman on January 10, 2010, 03:36:03 PM
-16 would be better.

For a radiator hose.

Rebuild kit for clutch master and slave, with a brake cylinder hone cost me $30 at Auto Zone.
Title: Re: -4an to big for clutchline?
Post by: jdmhatchracer94 on January 10, 2010, 03:36:38 PM
I have blead the shit out of it it nothin. I had to hone slave cause that bitch was stickin. might be the master I dunno

-16 smart ass

I have another master I will try
Title: Re: -4an to big for clutchline?
Post by: gooseman on January 10, 2010, 03:55:03 PM
I have blead the shit out of it it nothin. I had to hone slave cause that bitch was stickin. might be the master I dunno

-16 smart ass

I have another master I will try

I bet the slave is fucked. If you had to hone it because it was sticking, the seal is prob. worn out.
Title: Re: -4an to big for clutchline?
Post by: patsmx5 on January 10, 2010, 06:23:29 PM
did you bench bleed the master cylinder, then install it, then bleed the system?
Title: Re: -4an to big for clutchline?
Post by: 98vtec on January 10, 2010, 09:48:41 PM
run -3an. 

I had a -4AN line which king motorsports sold me that apparently would work perfect.  After driving around with a low ass engagement regardless of what i did with the clutch, i told them over and over that the line was too large.  They disagreed but allowed me to send it back for a refund.  I got a stainless line made at carquest in -3 and what do you know, my clutch worked as it should again.

basically with the bigger line, it takes more pedal travel to build up enough pressure to move the slave in comparison to a -3AN line which is the size closest to the factory hardlines.
Title: Re: -4an to big for clutchline?
Post by: d112crzy on January 11, 2010, 12:39:50 AM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.
Title: Re: -4an to big for clutchline?
Post by: 92CXyD on January 11, 2010, 09:57:35 AM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.

A no the line size does not matter when dealing with incompressible fluids (i.e. hydraulics).
http://science.howstuffworks.com/hydraulic1.htm (http://science.howstuffworks.com/hydraulic1.htm)

Title: Re: -4an to big for clutchline?
Post by: patsmx5 on January 11, 2010, 10:30:19 AM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.

A no the line size does not matter when dealing with incompressible fluids (i.e. hydraulics).
http://science.howstuffworks.com/hydraulic1.htm (http://science.howstuffworks.com/hydraulic1.htm)



Correct. As long as we assume they're being compressed in rigid bodies.

But even a braided stainless line flexes a little. And the bigger the line, the more it's going to flex. This is why a small line is better. I would make up a hard steel line and just have about 1 foot of flexible line if you're going for maximum pedal feel. This is how most cars are from the factory.
Title: Re: -4an to big for clutchline?
Post by: patsmx5 on January 11, 2010, 03:07:41 PM
Very true. That's why the regular slow way of bleeding brakes sucks cause the air moves down 8", and by the time you get ready to pump the pedal agaiin they floated up 7". That's why I use a vacuum bleeder when doing brakes. Good point.
Title: Re: -4an to big for clutchline?
Post by: 92CXyD on January 11, 2010, 03:14:09 PM
Very true. That's why the regular slow way of bleeding brakes sucks cause the air moves down 8", and by the time you get ready to pump the pedal agaiin they floated up 7". That's why I use a vacuum bleeder when doing brakes. Good point.

I always use a vac. gun I'm usually by myself when bleeding the brakes.  ;D
Title: Re: -4an to big for clutchline?
Post by: patsmx5 on January 11, 2010, 03:15:51 PM
Me too. I found that the little bleed screws still suck air when you crack them though, so it makes it hard to tell when you got all the air out. I now pour some thick engine assembly oil over the threads so they seal up, then it seals and works great.
Title: Re: -4an to big for clutchline?
Post by: Ntrain2k on January 11, 2010, 03:51:48 PM
Speedbleeders FTW
Title: Re: -4an to big for clutchline?
Post by: Joseph Davis on January 11, 2010, 05:19:52 PM
does not matter too much about the size of the clutch line as it does the piston are in master cylinder and the piston area in the slave cylinder.

You can go too small and turn the line into a restriction.  But, aside from that, 100% correct.  If you had a really big line and the fluid got water in it then it'd be super shitty, but if you maintain the system it'll work just as good as stock.
Title: Re: -4an to big for clutchline?
Post by: HiProfile on January 11, 2010, 09:14:08 PM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.

A no the line size does not matter when dealing with incompressible fluids (i.e. hydraulics).
http://science.howstuffworks.com/hydraulic1.htm (http://science.howstuffworks.com/hydraulic1.htm)




The problem is it's not the fuid compressing (basicly impossible), it's the hose that stretches mildly. A bigger house will stretch more, as it has more surface area & material to stretch. Same percentage, but more overall movement. The "amazing" braided stainless will actually allow more stretch than the stock hardlines. Unless you get some crazy double-braided over teflon mil-spec hose, it will stretch more than mild steel.
Title: Re: -4an to big for clutchline?
Post by: patsmx5 on January 11, 2010, 10:07:29 PM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.

A no the line size does not matter when dealing with incompressible fluids (i.e. hydraulics).
http://science.howstuffworks.com/hydraulic1.htm (http://science.howstuffworks.com/hydraulic1.htm)




The problem is it's not the fuid compressing (basicly impossible), it's the hose that stretches mildly. A bigger house will stretch more, as it has more surface area & material to stretch. Same percentage, but more overall movement. The "amazing" braided stainless will actually allow more stretch than the stock hardlines. Unless you get some crazy double-braided over teflon mil-spec hose, it will stretch more than mild steel.
+1
Title: Re: -4an to big for clutchline?
Post by: jdmhatchracer94 on January 11, 2010, 10:36:58 PM
fixed it today went to the local yard and got a stock line done. I was watching the an line while it was being pumped and it had a shit load of flex to it
Title: Re: -4an to big for clutchline?
Post by: 98vtec on January 12, 2010, 02:11:34 AM

basically with the bigger line, it takes more pedal travel to build up enough pressure

no fucking shit.

A no the line size does not matter when dealing with incompressible fluids (i.e. hydraulics).
http://science.howstuffworks.com/hydraulic1.htm (http://science.howstuffworks.com/hydraulic1.htm)




The problem is it's not the fuid compressing (basicly impossible), it's the hose that stretches mildly. A bigger house will stretch more, as it has more surface area & material to stretch. Same percentage, but more overall movement. The "amazing" braided stainless will actually allow more stretch than the stock hardlines. Unless you get some crazy double-braided over teflon mil-spec hose, it will stretch more than mild steel.
+1

well that makes a little more sense to me.
Title: Re: -4an to big for clutchline?
Post by: Joseph Davis on January 12, 2010, 10:12:27 AM
Wood grain shift knob.

I have the same USB powered DVD drive.  It's a piece of shit that's never worked, welcome to $20 on eGay wasted.
Title: Re: -4an to big for clutchline?
Post by: ratcityrex on January 12, 2010, 01:54:28 PM
Wood grain shift knob.

I picked up a stock wood grain shift knob for my uncles 77 cvcc at the wrecking yard a few yeas ago. I put it on my shifter after leaving the wrecking yard and it felt better than any other mad jaydeeem shift knob Ive ever had.