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View Full Version : I have a problem.. no emergency brakes...



Steve1968LS2
06-22-2006, 07:24 PM
Wasn't a problem with the TH400.. with the T56 it is.

My rear PBR brakes don't have an e-brake system. So, besides wheel chocks, I need to find an answer.

How about a pinion e-brake system like this to mount to my 3rd member?

http://www.tperformance.com/street_rod_store/emergency_brakes/pinion-mounted_emergency_brake_kit/

I know they are not as good but I only need it for a parking brake.

Thoughts?

Madspeed
06-22-2006, 10:42 PM
I would worrie about the rotational mass on the front pinnion bearing.
If its at all out of balance you will eat pinnion bearings up and the first to go will be the pinnion seal.

We have a truck at work we put a disk on the output of the Tcase , it causes the output shaft nut to come loose and causes a Horrid vibration upon decell.
Needless to say its coming off
Not good to go flogging across the whoops at 100 + and have the dshaft leave you.
I guess in short, I would not use it =) JMO

Ken F

ProdigyCustoms
06-23-2006, 02:52 AM
Put a fluid lock on it .

Jimmy Sean
06-23-2006, 05:20 AM
Frank, Do you mean a line lock or something similar to it?

Stupidnewbie
06-23-2006, 05:50 AM
I've thought about using a line-lock for a parking brake, as well. I'm going to a Ford 9" floater with 2-piece rotors, so a spot caliper is the only real option (an expensive one at that). However, I'm worried about how long a line-lock will hold for at one time and if it could develop a slow leak over a lot of usage. Are some systems better or worse for longevity and reliability?

Edit: It seems like there'd be a lot of stress on your caliper piston seals and such....maybe it's not such a good idea. :(

Steve1968LS2
06-23-2006, 07:53 AM
Good info here.. let's keep it going.

After all, most of us need a parking brake.

I though of a line lock but was concerned about the long term problems. I can park the car in gear but would like something additional to keep any rolling from happening.

The wheel chock idea might be what I go with. At least till I can afford a set of rear Wilwoods.

Madspeed
06-23-2006, 09:37 AM
OMG I totally forgot you can use a fluid lock lever
Steve thaat is the answer we have one on a rear disc setup on a 14 blt chev rear end in an F250 4x4
it goes in the rear brake line you just run the rear brake line into the car somewhere and through the fluid lock and back out to rear brake, when u need parking braake you step on the brakes and flip the lever.
I will try to find out where we got it
EDIT: this is not an electrical line lock
Ken F

Madspeed
06-23-2006, 09:40 AM
FOUND it Here ya go Steve
http://www.mico.com/litpdf/80-950-152.pdf#search='fluid%20lock'

ProdigyCustoms
06-23-2006, 09:41 AM
JaMar makes a fluid parking brake button goes in the rear line or front. You push the brake pedal and push the button. Its $30 or so.

corrected

70 LS1
06-23-2006, 10:48 AM
Are there any problems with leaving the lines pressurized for long periods of time?

Stupidnewbie
06-23-2006, 11:47 AM
That's my fear, wouldn't constant pressure on the pistons add up and possibly cause the seals to leak? Especially against HOT rotors... Also, if for some reason you lose brake pressure, you won't have a 2nd option to stop. I know that my e-brake saved my ass once in my Firebird. The c-clip fell off my brake pedal pin and the pin worked its way out and I had no brakes approaching a red light. :scared:

EastCoast
06-23-2006, 11:57 AM
You're headed down a path that I know very well....

I looked at a hydraulic means of locking the rear brake to act as a parking brake. I didn't want to go with a line lock since I understand that they draw power while activated (thus leaving the car with the park brake on results in a dead battery). So I went to a local cirlce track supplier and found a manual valve in his catalog. My thought was to run the brake line into the car some how, so I could depress the brake pedal, flip the lever locking the rears and thus having a park brake....

I'm not sure about the type of vechical inspections that your state may have, but here in New Brunswick Canada we have annual safety inspections. I went to a local shop, sat down and read their guidlines pertaining to valid parking brakes. It still wasn't clear if this would be considered valid. Finally I spoke with the head engineer for the entire province and he said that it absolutely DID NOT constitue a valid emergency brake! I returned the manual valve....:crying:

So I bought rear calipers (88 Camaro) with built in e-brake. Lets just say I never got them to work. :machine:

I now have a set of small Wilwood spot calipers mounted under my rear 81 Malibu single piston caliper. The spot calipers were about 60 bucks each. Their not the greatest thing since sliced bread, but at least I now have a working AND VALID park brake. :woot:

I've promised some pics to a few people doing the CBB thing. I will have some by Monday, I PROMISE!

Robb

nancejd
06-23-2006, 03:30 PM
I thought that someone made a separate parking brake caliper kit, that added a mechanical brake alongside the existing caliper, but I can't remember who now.

Steve1968LS2
06-23-2006, 07:06 PM
That's my fear, wouldn't constant pressure on the pistons add up and possibly cause the seals to leak? Especially against HOT rotors... Also, if for some reason you lose brake pressure, you won't have a 2nd option to stop. I know that my e-brake saved my ass once in my Firebird. The c-clip fell off my brake pedal pin and the pin worked its way out and I had no brakes approaching a red light. :scared:

You never set a park brake on very hot rotors (like at the track).. just park on level ground and leave in gear :)

Steve1968LS2
06-25-2006, 11:59 AM
J Mar makes a fluid parking brake button goes in the rear line or front. You push the brake pedal and push the button. Its $30 or so.

I'm not finding anything online.. anyone have a link?

I envision something simple.. a box with a valve lever.

anyone?

zero g
06-25-2006, 04:21 PM
Look at the Lever Lock on page 3. I know a guy that uses it on a Dart with good results.

http://www.mico.com/litpdf/80-950-152.pdf

zero g
06-25-2006, 04:54 PM
I know a guy using this set-up also.

http://www.tsmmfg.com/Pinion_Mounted_Parking_Brakes.htm

zero g
06-25-2006, 05:06 PM
Here is a pic of the lever lock on the bottom left under the dash.

EastCoast
06-25-2006, 05:09 PM
Although I don't have a link, the manual valve that I found was apparently used by dirt track cars. They install it on the right front line to only apply the brakes to the left front. Not sure about that, since there's no form of dirt track racing in this part of the world.... That may give you something to ask your supplier about.

Robb

ProdigyCustoms
06-25-2006, 05:30 PM
I appoligize Steve, Here it is, click brake products, then about half down the page, Hydraulic park lock

http://jamarperformance.com/product_main.asp

EastCoast
06-28-2006, 03:42 AM
Although I don't necessarily think this is the best option, it is one option for a park brake. I've done this to simplyify finding a caliper (front) to use as rear brakes. It could be done with any caliper as long as you can make the brackets, etc

Here's the bracket:
https://static1.pt-content.com/images/noimg.gif

Rotor and calipers installed:
https://static1.pt-content.com/images/noimg.gif

As you may notice, this is the drivers side and I am no longer staggering the calipers. In this case the caliper clears the shock.

Sorry for the crappy pics :dunno:

Robb

bobbaganoosh
06-28-2006, 10:01 AM
What caliper are you using for the parking brake? I have no provision for a p.b. on my car either, I was going to go with a pinion mounted setup but after I put the exhaust on I don't have the room.

Aaron

EastCoast
06-28-2006, 11:28 AM
Here's the spot caliper that I'm using.

http://www.jegs.com/webapp/wcs/stores/servlet/CategoryDisplay?storeId=10001&catalogId=10002&catalogIdentifier=Jegs_Direct&categoryId=28315&parentCategoryId=11755

Like I mentioned, it's pretty low tech and non self adjusting. I simply mounted & shimmed mine so the outside pad is just slightly off the surface of the rotor. It seems to be an acceptable solution.

Robb