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-   -   I give up with brake bleeding (https://www.lateral-g.net/forums/showthread.php?t=54867)

vstol 11-01-2017 03:00 AM

Quote:

Originally Posted by Hydratech (Post 668160)
Hi Kevin - bleed the brakes just like you would with any other car - ENGINE OFF. This means that you can bleed the brakes before you even hook up the power steering line set. If you are going to bleed the brakes before hooking up the PS line set, place a towel under the brake unit as it will weep PS fluid out of the ports (as it has been fully dyno tested and is currently full of PS fluid). Note that the one major difference in a hydroboost system is that the brakes will be about a solid inch lower while the system is powered down versus when it is powered up (engine running). I personally prefer to have the PS system lines connected up and the preliminary fill / steer right and left procedure done before brake bleeding - you can even fire the engine up and check for proper power steering operations, but please DO NOT attempt brake bleeding with the system powered up (engine running).

http://hydratechbraking.com/braketech1.html

Here is the statement located in our instructions:

*IMPORTANT! NEVER APPLY THE BRAKES WHILE THE MASTER CYLINDER IS REMOVED, OR YOU MAY DESTROY THE BRAKE ASSIST UNIT BY POSSIBLY OVEREXTENDING THE POWER BRAKE UNIT’S OUTPUT PISTON OUT OF THE PRECISION BORE THAT IT OPERATES IN!

Having the MC installed is the safety stop / travel limiter to prevent this from happening. Imagine a piston popping to far out of its cylinder bore in an engine block (!)

*Perform brake bleeding procedures with the engine off for best results.

You may also dramatically misunderstand what you are feeling with the system bled and the brakes powered up (engine running) at first. I suggest you place the vehicle on a hoist or jack stands, place the vehicle into gear to get the rear tires spinning, then apply the brakes just enough to overcome engine torque of any kind, as this will give you the best idea as to how (little) you actually have to apply the brakes to stop the vehicle. Some people just blaze down on the brake pedal not understanding what they are feeling while the vehicle is sitting still, building 1600 PSI of line pressure thinking that something is weird / wrong (that is until they actually hit the streets!).

Scroll down to the bottom of this old webpage again for reference with the C3 Vette customer's feedback - he completely misunderstood what he was feeling in his brake response at first:

http://hydratechbraking.com/testimonials_old/


:gitrdun:

Great I will hook it all up first then bleed. Can not wait!!

vstol 11-01-2017 04:19 PM

Looks like I will need to make another fuel line since the new setup is in the pathway of the current set up. :bang: :bang: .

Hydratech® 11-01-2017 06:36 PM

It's always something...
 
Back when I used to own Unlimited Racing in Detroit eons ago, we always had to discuss how one change always required other changes. Just installing a set of headers seemed simple to a customer, but always required further re-engineering to make it actually happen of everything around the headers. Sometimes a mini starter had to be installed, sometimes a double hump cross member, shorter spark plugs with different boot angles... Same with "just" installing a classic Holley carb - different fuel lines, different linkages, different air cleaner, jetting the carb, moving things around to accommodate the fuel bowls, and on and on and on...

Here is an image of a C2 Vette with an LS7 installed by https://www.streetshopinc.com/, showing how they chose to move the fuel line around the front of the hydraulic brake assist unit and master cylinder:

http://www.hydratechbraking.com/images/C2LS7.jpg

Hopefully you won't have to get too involved in re-engineering your fuel line!

vstol 11-02-2017 03:01 AM

Quote:

Originally Posted by Hydratech (Post 668228)
Back when I used to own Unlimited Racing in Detroit eons ago, we always had to discuss how one change always required other changes. Just installing a set of headers seemed simple to a customer, but always required further re-engineering to make it actually happen of everything around the headers. Sometimes a mini starter had to be installed, sometimes a double hump cross member, shorter spark plugs with different boot angles... Same with "just" installing a classic Holley carb - different fuel lines, different linkages, different air cleaner, jetting the carb, moving things around to accommodate the fuel bowls, and on and on and on...

Here is an image of a C2 Vette with an LS7 installed by https://www.streetshopinc.com/, showing how they chose to move the fuel line around the front of the hydraulic brake assist unit and master cylinder:

http://www.hydratechbraking.com/images/C2LS7.jpg

Hopefully you won't have to get too involved in re-engineering your fuel line!

Thanks, I just need to put it together and measure but the C3 box comes out further thus pushing it very close to the Alternator. I think I will need to go under it

Hydratech® 11-02-2017 05:34 PM

You are the artist ;)
 
You are the artist, and therefore the vehicle is your canvas.

Design the changes in the fuel line reconfiguration how you see fit as such. With a factory manual brake car, the brake lines are actually longer than the factory power brake C3's, so at least it ought to be easy for you to elegantly massage the brake lines into accommodating the factory power brake MC location further forward - usually the "big red EASY BUTTON" on that aspect. Have you received your replacement 1 1/8" bore MC yet? I'm hoping you can pound this bad boy down the road this weekend! :drive:

http://www.hydratechbraking.com/images/EASYBUTTON.JPG





BTW - Your sign is AWESOME - JUST LOVE IT! :bigun2: :guns: :rofl:

http://i152.photobucket.com/albums/s...a/IMG_3413.jpg

Semper Fi !

vstol 11-03-2017 02:59 AM

Quote:

Originally Posted by Hydratech (Post 668268)
You are the artist, and therefore the vehicle is your canvas.

Design the changes in the fuel line reconfiguration how you see fit as such. With a factory manual brake car, the brake lines are actually longer than the factory power brake C3's, so at least it ought to be easy for you to elegantly massage the brake lines into accommodating the factory power brake MC location further forward - usually the "big red EASY BUTTON" on that aspect. Have you received your replacement 1 1/8" bore MC yet? I'm hoping you can pound this bad boy down the road this weekend! :drive:

http://www.hydratechbraking.com/images/EASYBUTTON.JPG





BTW - Your sign is AWESOME - JUST LOVE IT! :bigun2: :guns: :rofl:

http://i152.photobucket.com/albums/s...a/IMG_3413.jpg

Semper Fi !

Thanks the MC came yesterday and the sign does get individuals attention. Remember there is nothing stock on this car except the body.

Hydratech® 11-03-2017 05:50 PM

Stock body?
 
The body looks pretty heavily "massaged", so I wouldn't call it stock by any stretch! But is sure does look great - love the paint scheme.

:cheers:

vstol 11-04-2017 04:46 AM

Quote:

Originally Posted by Hydratech (Post 668310)
The body looks pretty heavily "massaged", so I wouldn't call it stock by any stretch! But is sure does look great - love the paint scheme.

:cheers:

true

vstol 11-04-2017 12:39 PM

Paul PM sent

vstol 11-04-2017 04:41 PM

I will say that the Hydratech mounting plate is machined very well and looks great. I hope to have it mounted tomorrow.

vstol 11-05-2017 07:26 AM

Paul I assume the clevis is going into the manual hole (top) in the brake pedal, at least that is where it lines up. Also I was planning on going to the reservoir vice the tee fitting for the low pressure bleed line but it is higher than the fitting on the pump. Does that make a difference?

vstol 11-05-2017 03:03 PM

Working alone I got the unit mounted, and two of the three lines completed. To get the one from the steering pump I need to remove the pulley so next Friday it should be good to go. Just need someone to help me over the weekend to bleed it. I need to order a new fuel line as well.

Hydratech® 11-05-2017 10:07 PM

Making progress - it is now bolted in !
 
Hi Kevin - yes, this particular Hydratech manual to power brake conversion system #3007 / 3507 that you have is indeed designed to connect to the top hole in your brake pedal (the hole that you have been using in your previous manual brake scenario). I sent you a few tech PM's on the low pressure return line fitting connection. You are only returning about 2 tablespoons +/- of PS fluid "back home" to the PS reservoir every time you let off of the brakes, so it can technically be located anywhere you want to put the return line connection, which is why it will even work appropriately using the T fitting method.

It sounds like you're getting closer and closer, but it (sucks) to hear that your arrangement is forcing you to yank the PS pulley off of the pump to make the high pressure PS output line connection, and then having to rework your fuel line for a power brake scenario versus the previous manual brake package. If you get the new MC bench bled out properly, you CAN gravity bleed the brake system yourself by the way... But, maybe, just maybe, you might be able to take your beast out for a healthy pound session this weekend and enjoy some absolutely wicked braking (which makes the brake pedal just as much fun as the gas pedal) (!)

:whenitsdone:

vstol 11-06-2017 02:56 AM

Thanks Paul all is good just a little more time. I used the Tee fitting. Kevin

67_camaroRS 11-12-2017 11:45 PM

update? I've gone through this whole thread LOL.:computer:

vstol 11-13-2017 04:15 PM

BINGO! I have brakes and it is awesome. The feel is progressive at first then WHAM it clamps down. So I got on the "beast" this weekend for another shake down and breaking in the brake pads and it was a great to know I could get on it and not worry about the brakes. I will tell you Paul and his team behind this post was awesome with their technical advise and I fee their customer service, if required will be great as well. Finally this has been a long road, would have been easier if Wilwood and a few other "experts" would have told me earlier that C4 brakes and a manual MC do not work!!. . Many thanks to all that have posted, this was a long painful trip with such an easy part of my build. :y0!:

Hydratech® 11-16-2017 08:15 PM

Downright astounding, isn't it?
 
Quote:

BINGO! I have brakes and it is awesome.

I know you had quite the smile on your face (finally) standing your C3 on its nose when commanded after blasting down your favorite "test areas" (yes officer, I'm just testing and tuning my car with some new safety improvements I've recently installed to make sure all is proper while handing him your license and military ID with a neatly folded $100 bill loosely attached to the backside LOL).

Further back in this discussion we talked about military pilots landing fighter jets on aircraft carriers being "tail hooked", and how you better damn make sure you were buckled in properly. How is your front to rear brake balance seem to be behaving so far? Sometimes the C4 brake systems end up with not enough rear brake activity as compared to the fronts, and this is typically a matter of proper emergency brake adjustment (as the C4 rear calipers have the e-brake built into them). If you are not getting enough rear brake involvement, apply some pressure to the brake pedal, hold it, and then cycle your emergency brake lever about 10-15 times (while holding pressure on the brake pedal) - this will "ratchet up" the rear brake calipers to provide more involvement in overall braking actions - adjust your e-brake cable(s) up as / if needed. They will usually always eventually catch up to the front brakes with further road use (but you've got some serious rubber back there!). With that much rubber back there, you may even have to get some more aggressive pads in the rear to utilize all of that traction you have (but then they will dust like all hell)...

This scenario reminds me of "Casper the white ghost" - an older well to do gentleman with a nitrous big block powered '84 C4 Vette about 17 years ago. It was funny, but the poor guy was bleeding and laughing at the same time. He had tried everything he knew to do to try to get his Vette to stop - performance pads, vacuum canister / pump, later model larger Vette Grand Sport rotors and calipers... All the usual stuff... I installed a Hydratech system in his Vette, road tested it a day to make sure the ABS and everything was happy, then handed him the keys with a warning. He blazed down the industrial drive full bore then whaled down on the brakes. He wasn't buckled in properly and blazed himself against the steering wheel quite hard resulting in a "blunt force trauma" over his eyebrow, but laughing like a little kid while swabbing the blood from his forehead. I warned him before handing him his keys, and watched the whole thing happen. Here he comes at WOT, then stands on the brakes full blast ABS kicking in fiercely and him all folded up inside of the vehicle from not being buckled down - ouch! It sure caught him way off guard (DOH!)

:thumbsup:

If you like your system now, wait until you get a couple hundred miles on it to get everything settled in!

There IS a difference - Thank you for choosing Hydratech!

Hydratech® 11-16-2017 08:22 PM

How about some pics?
 
:ttiwop:

E-mail them to us if needed - we can resize them appropriately and host them on our server.

:cheers:

vstol 11-18-2017 05:06 PM

Quote:

Originally Posted by Hydratech (Post 668894)
:ttiwop:

E-mail them to us if needed - we can resize them appropriately and host them on our server.

:cheers:

I will retry tomorrow.

vstol 11-19-2017 02:25 PM

actually washed and waxed the car for the pics and now my phone will not let me fwd them. Working it

vstol 11-19-2017 04:28 PM

Finally some pics, I went out for a speed limit run and @@(@*&%$& :)

vstol 11-19-2017 04:31 PM

7 Attachment(s)
Here are some pics of the car

Hydratech® 11-19-2017 05:00 PM

Adrenaline Pump Installed and ready :)
 
Quote:

(yes officer, I'm just testing and tuning my car with some new safety improvements I've recently installed to make sure all is proper) (while handing him your license and military ID with a neatly folded $100 bill loosely attached to the backside LOL).
When you say speed limit run I am thinking either "posted speed limit" or "what the car will run speed limit" - of course it was posted speed limit runs, RIGHT? :lol: (but I'll bet you got there incredibly fast)(oh snap, I'm doing 105 in a 70, better get off the fun pedal of my Antique Vehicle) before Johnny Law notices (!)

I wish that animal was parked here with the keys in it!

:flag2:

vstol 11-20-2017 02:48 AM

Quote:

Originally Posted by Hydratech (Post 669003)
When you say speed limit run I am thinking either "posted speed limit" or "what the car will run speed limit" - of course it was posted speed limit runs, RIGHT? :lol: (but I'll bet you got there incredibly fast)(oh snap, I'm doing 105 in a 70, better get off the fun pedal of my Antique Vehicle) before Johnny Law notices (!)

I wish that animal was parked here with the keys in it!

:flag2:

Thanks and I have a picture of the Hydatech setup not sure where it went. I will retake one!

vstol 11-20-2017 02:52 AM

3 Attachment(s)
Here are a few more with the Hydratech setup. The attached image above is the Dyno sheet


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