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Old Sep 21, 2007 | 04:25 PM
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Default Brake bleeding question

replacing the front calipers this weekend, so will i need to bleed the entire brake system or just the fronts? thanks..don
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Old Sep 21, 2007 | 05:01 PM
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If you don't remove anything from the rear circuit, you will only need to bleed the fronts. BUT, you might as well bleed the rears using fresh fluid in the MC.
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Old Sep 21, 2007 | 05:08 PM
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Originally Posted by Duke94
If you don't remove anything from the rear circuit, you will only need to bleed the fronts. BUT, you might as well bleed the rears using fresh fluid in the MC.




better safe than ...
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Old Sep 21, 2007 | 07:06 PM
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Flush the entire system. Don't use a vacuum pump for the final bleed. It will suck in air past the caliper pistons.
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Old Sep 25, 2007 | 11:37 AM
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just an FYI.... My car has been pulling to the left real bad for awhile now. I bought a pressure bleeder and have to say that is the only way to go. Not only is it super fast but showed me in minutes that my front hoses were bad. After replacing them it took about 10 minutes to bleed all 4. Just a thought. $69.00 for the pressure bleeder.
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Old Sep 25, 2007 | 12:17 PM
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Originally Posted by 7t6vette
just an FYI.... My car has been pulling to the left real bad for awhile now. I bought a pressure bleeder and have to say that is the only way to go. Not only is it super fast but showed me in minutes that my front hoses were bad. After replacing them it took about 10 minutes to bleed all 4. Just a thought. $69.00 for the pressure bleeder.
I sure have to agree with the pressure bleeder. Saved me from getting a divorce or worse yet locked up for murder trying to bleed brakes with my wife operating the pedal..............Don't go down that road, trust me!!
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Old Sep 25, 2007 | 01:38 PM
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What make of pressure bleeders are you guys using? If you can post a link then it would be very helpfull.
Thanks and best regards, DK.
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Old Sep 25, 2007 | 01:48 PM
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http://www.trackhaus.com/document_ge...roducts_id=519

C3 uses adapter 1105. No need to have someone pumping the brakes. In my opinion it is the only way to go. I'm no brake guy but this sure won my vote on "brake bleeding 101".
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Old Sep 25, 2007 | 02:28 PM
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I just ordered mine this morning from Zip for 64.99. will give it a go this weekend. thanks again from a beginner for everyones help. don
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Old Sep 25, 2007 | 03:43 PM
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The hardest part was getting it to seat properly (not leak) when mounted to the master cylinder. Mine uses 2 chains that wrap around the cyclinder then tighten with J hooks. Once tightened properly it was a piece of cake. You won't regret buying it.
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Old Sep 25, 2007 | 03:48 PM
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A couple of large "C" clamps work better than those darn chains.
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Old Sep 25, 2007 | 04:39 PM
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Originally Posted by 7t6vette
http://www.trackhaus.com/document_ge...roducts_id=519

C3 uses adapter 1105. No need to have someone pumping the brakes. In my opinion it is the only way to go. I'm no brake guy but this sure won my vote on "brake bleeding 101".
I bled the brakes this past week-end and it was light years better than the pump the peddle method. But one warning, make sure the adaptor has a good, tight seal on the master cylinder. Otherwise, you'll have brake fluid spewing out all over the place! You can guess how I know this!

This experience did inspire me to plan on trying something to make this easier and get rid of what I think are the Mickey Mouse "J" hooks for securing the adaptor. I'm going to try and add the connection fitting to the Master Cylinder cap of my old MC. This should give me factory tight seal and make things a whole lot easier. I'm sure I'm not the only one who has thought of this. But, has anyone actually build a pup like this?
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Old Sep 25, 2007 | 06:11 PM
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Originally Posted by dk-corvette
What make of pressure bleeders are you guys using? If you can post a link then it would be very helpfull.
Thanks and best regards, DK.
This is the brand I have and it works excellent.

http://www.motiveproducts.com/02bleeders.html
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Old Sep 25, 2007 | 07:09 PM
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Originally Posted by Scott Marzahl
A couple of large "C" clamps work better than those darn chains.
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Old Sep 25, 2007 | 11:05 PM
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Perfect timing as I just purchased a pressure bleeder from Motive. I will be removing my wheels as I bleed the brakes as I want to inspect the calipers but, is it possible to leave the tires on as well? One book I have shows the bleeder screw on the front but, I have also seen them on the side. Is there more than one bleeder screw?
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Old Sep 26, 2007 | 12:34 AM
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Originally Posted by Code Blu
Is there more than one bleeder screw?
The rears have inside and outside bleeders.

Forget all those expensive bleeding systems - get a few speed bleeders and be done with it. It takes about 1 minute per wheel to bleed them - singlehandedly.



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Old Sep 26, 2007 | 03:10 AM
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The 1105c adapter is a POS and leaks all over the place. Nothing like nice caustic brake fluid all over the rag joint and rubber steering componants. What Motive used to sell, before the plastic POS, was a steel plate with hardish rubber gasket, like the one in the 1105, but harder, glued to it. I borrowed a friend of mines and I was able to bleed at 20 psi with no leakage the FIRST time. Ditch the 1105 and complain to Motive. Make your own adapter or your going swimming. I tried 2 brand new 1105s before I knew better.



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Old Sep 27, 2007 | 08:40 AM
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Z-man, I heard a rumor that the spring loader pressure bleeder valves get stuck after 1st use. Fact or Fiction? Plus don't you have to keep adding break fluid to the MS and pump the breaks to keep pressure built up? As for the pressure bleeder I agree that cap that mounts to the MS could be a better design. I like the thought of using the original MS cover (modified).

Last edited by 7t6vette; Sep 27, 2007 at 08:42 AM. Reason: update
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Old Sep 27, 2007 | 02:22 PM
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Originally Posted by 7t6vette
Z-man, I heard a rumor that the spring loader pressure bleeder valves get stuck after 1st use. Fact or Fiction? Plus don't you have to keep adding break fluid to the MS and pump the breaks to keep pressure built up? As for the pressure bleeder I agree that cap that mounts to the MS could be a better design. I like the thought of using the original MS cover (modified).
Never heard of it. Mine are fine after 10 years. If you just keep pumping the brakes, and pump enough fluid out of the system to lower the MC, then of course you'd have to add fluid to the MC. During the bleeding process using speed bleeders there isn't any pressure in the system (except for the tiny amount the spring would exert). There isn't any pressure during normal bleeding either. When no air comes out of the caliper, you tighten the bleeder and move on to the next wheel. It literally takes less than a minute or so and you can do it without someone else pumping the brakes for you.

All these other systems just seem like such a waste of time and energy hooking them up, etc., when there is such a simple solution.
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Old Sep 27, 2007 | 02:42 PM
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I'm a cheap bastard.

If you're so inclined, you can construct a homemade pressure bleeder from a garden sprayer and a junkyard donor MC cap. I know several guys have done this with success.

Personally I've had good luck with the hose-in-jar method. You just get a length of clear tubing small enough to make a seal with the bleeder nipple, stick the open end into a jar of clean brake fluid, and then pump away until you don't see any bubbles/air in the tube. It works because on the backstroke, you'll suck in fluid from the tube instead of air.

The gravity method also works but is slow.
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