Front brakes
Thread Starter
Burning Brakes
Joined: Feb 2022
Posts: 988
Likes: 183
From: South Carolina
Front brakes
This is on 1981,I’m putting new pads on fronts,and putting O rings in calipers,as they still have seals in them,guestion is working on passenger side and I only took two springs off,in other words just half caliper,shouldn’t their be four springs,or the springs are just on the one half. Thanks
Le Mans Master
Joined: Jun 2019
Posts: 7,653
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From: Indiana
4 springs
someone probably forgot to put in.
A nice write up
https://www.corvettemagazine.com/196...d-replacement/
someone probably forgot to put in.
A nice write up
https://www.corvettemagazine.com/196...d-replacement/
Is my vette stock?? HAHA
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From: Im not allowed to tell you
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No directions from the supplier? My CSSBINC kit came with new everything, all i reused was the caliper shells themselves
Race Director
Joined: Mar 2017
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From: Virginia
The CSSB Inc. kit may cost a bit more, but it comes with new pistons, and springs, Buy the high-heat version if you go that route.
https://www.cssbinc.com/corvette-bra...rsion-kit.aspx
https://www.cssbinc.com/corvette-bra...rsion-kit.aspx
Last edited by Bikespace; Jan 15, 2024 at 07:30 PM.
Racer
Joined: Sep 2010
Posts: 274
Likes: 154
From: Alexandria VA
[QUOTE=Bikespace;1607430408]The CSSB Inc. kit may cost a bit more, but it comes with new pistons, and springs, Buy the high-heat version if you go that route.
https://www.cssbinc.com/corvette-bra...rsion-kit.aspx[/QUOTE
Don’t buy the red silicone o-ring ( high temp) kit if you want to use silicone fluid. It will fail quickly. The regular kit will probably be ok with silicone fluid despite the warrantee warnings.
https://www.cssbinc.com/corvette-bra...rsion-kit.aspx[/QUOTE
Don’t buy the red silicone o-ring ( high temp) kit if you want to use silicone fluid. It will fail quickly. The regular kit will probably be ok with silicone fluid despite the warrantee warnings.
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[/QUOTE
Don’t buy the red silicone o-ring ( high temp) kit if you want to use silicone fluid. It will fail quickly. The regular kit will probably be ok with silicone fluid despite the warrantee warnings.[/QUOTE]
Nope, it's not. I went down to the bearing and seal shop and purchased new O rings that are compatible with Dot 5. (Viton, which doesn't like Dot3 or4) I used their pistons, just purchased different O rings. I ran a thread on this , I think less than a year ago. I like my DOT 5.
Don’t buy the red silicone o-ring ( high temp) kit if you want to use silicone fluid. It will fail quickly. The regular kit will probably be ok with silicone fluid despite the warrantee warnings.[/QUOTE]
Nope, it's not. I went down to the bearing and seal shop and purchased new O rings that are compatible with Dot 5. (Viton, which doesn't like Dot3 or4) I used their pistons, just purchased different O rings. I ran a thread on this , I think less than a year ago. I like my DOT 5.
Last edited by 4-vettes; Jan 15, 2024 at 08:16 PM.
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Thread Starter
Burning Brakes
Joined: Feb 2022
Posts: 988
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From: South Carolina
Yea,according to the assembly manual,it says use a little silicone at bottom of piston in groove,which I guess why at the bottom of the calipers looked like jell after all these years.
Melting Slicks
Joined: Feb 2001
Posts: 3,330
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From: Europe , Luxembourg
[/QUOTE
I went down to the bearing and seal shop and purchased new O rings that are compatible with Dot 5. (Viton, which doesn't like Dot3 or4) I used their pistons, just purchased different O rings. I ran a thread on this , I think less than a year ago. I like my DOT 5.
I went down to the bearing and seal shop and purchased new O rings that are compatible with Dot 5. (Viton, which doesn't like Dot3 or4) I used their pistons, just purchased different O rings. I ran a thread on this , I think less than a year ago. I like my DOT 5.
Hi.
Did you also replace the seals in the master cylinder for the conversion to DOT5 ? Unfortunately, I can't find your thread.
Brgds
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Try this link.
https://www.corvetteforum.com/forums...conundrum.html
The master cylinder, and most brake parts on most every car out there have no trouble with DOT 3,4 Or 5.
most all rubber brake parts are made of EPDM type rubber. The makers of these O ring caliper kits wanted O rings that didn't have the seam on the outer edge. Look at the ones in your O ring kit. The moulding seam is about 20 - 25 degrees off the outer and inner edge. In order to have these O rings made this way. They obviously went offshore. And the rubber is a compromise. It is fine for use with Dot 3. But not tolerant of silicone.
https://www.corvetteforum.com/forums...conundrum.html
The master cylinder, and most brake parts on most every car out there have no trouble with DOT 3,4 Or 5.
most all rubber brake parts are made of EPDM type rubber. The makers of these O ring caliper kits wanted O rings that didn't have the seam on the outer edge. Look at the ones in your O ring kit. The moulding seam is about 20 - 25 degrees off the outer and inner edge. In order to have these O rings made this way. They obviously went offshore. And the rubber is a compromise. It is fine for use with Dot 3. But not tolerant of silicone.
Last edited by 4-vettes; Jan 16, 2024 at 02:39 AM.
Race Director
Joined: Mar 2017
Posts: 11,947
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From: Virginia
Try this link.
https://www.corvetteforum.com/forums...conundrum.html
The master cylinder, and most brake parts on most every car out there have no trouble with DOT 3,4 Or 5.
most all rubber brake parts are made of EPDM type rubber. The makers of these O ring caliper kits wanted O rings that didn't have the seam on the outer edge. Look at the ones in your O ring kit. The moulding seam is about 20 - 25 degrees off the outer and inner edge. In order to have these O rings made this way. They obviously went offshore. And the rubber is a compromise. It is fine for use with Dot 3. But not tolerant of silicone.
https://www.corvetteforum.com/forums...conundrum.html
The master cylinder, and most brake parts on most every car out there have no trouble with DOT 3,4 Or 5.
most all rubber brake parts are made of EPDM type rubber. The makers of these O ring caliper kits wanted O rings that didn't have the seam on the outer edge. Look at the ones in your O ring kit. The moulding seam is about 20 - 25 degrees off the outer and inner edge. In order to have these O rings made this way. They obviously went offshore. And the rubber is a compromise. It is fine for use with Dot 3. But not tolerant of silicone.
If your O-ring kit manufacturer tells you not to use DOT 5, don't. If you then source alternate O-rings to try to find something that is DOT 5 compatible, you are doing so at your own risk, but that thread has some information to get you started. I'll keep using the new O-rings, DOT 4 fluid, and doing periodic fluid changes.
Racer
Joined: Sep 2010
Posts: 274
Likes: 154
From: Alexandria VA
Buying your own o-rings to replace the ones in the kits is a good idea. The best o-rings for DOT5 silicone fluid are peroxide cured EPDM. You can buy them from theoringstore.com for $1.67 each for the larger front pistons. The alternative is regular sulfur cured EPDM. They are half the price but have a lower temperature resistance. I think reputable master cylinder kits use regular EPDM seals which will be OK with silicone fluid since the master cylinder has no heat issues.
Last edited by Pboyd; Jan 17, 2024 at 09:43 AM. Reason: Typo