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09-13-2022, 03:45 PM
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CC Member
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Join Date: Jul 2021
Cobra Make, Engine: Era #634
Posts: 25
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Not Ranked
Speed Bleeders
Guys I am going to be changing the brake fluid out in 634. It has Sierra fronts and the Jag inboards. Does anyone happen to know what speed bleeders I need to order! There is a ton of them to choose from. Any help would be appreciated. Thanks.
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09-13-2022, 06:29 PM
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CC Member
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Join Date: May 2002
Location: SF, Bay Area,
CA
Cobra Make, Engine: SPF832, 466cid
Posts: 506
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Not Ranked
Motive Power Bleeder. The adapter is something you'll need to research based on ERA's master cylinder.
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09-14-2022, 06:41 AM
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CC Member
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Join Date: Aug 2006
Cobra Make, Engine: ERA FIA 2045, FFR 4068 Coupe sold, FFR 1816 roadster sold, FFR 3218 Roadster sold
Posts: 105
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Not Ranked
Quote:
Originally Posted by NROTOXIN
Motive Power Bleeder. The adapter is something you'll need to research based on ERA's master cylinder.
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I 2nd the Motive bleeder. If you have Girling reservoirs power bleeder won’t work. Cans can’t handle being pressurized. Even just a pound or two and they blow up. |
09-14-2022, 07:48 AM
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CC Member
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Join Date: Apr 2009
Location: Little Rock area,
AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,533
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Not Ranked
Go to post 30 in this old thread of mine. I believe the 3/8-24 are correct for the rear girdling. I have no idea for the Sierras.
Best approach to bleeding the brakes |
09-14-2022, 10:51 AM
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CC Member
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Join Date: Mar 2017
Cobra Make, Engine: Contemporary Classic Cobra CCX-3-3967
Posts: 78
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Not Ranked
I have a Contemporary with the Girling calipers. I used this kit:
https://mossmotors.com/remote-bleeder-hoses |
09-14-2022, 02:38 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
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Not Ranked
Quote:
Originally Posted by Lalmeida617
Guys I am going to be changing the brake fluid out in 634. It has Sierra fronts and the Jag inboards. Does anyone happen to know what speed bleeders I need to order! There is a ton of them to choose from. Any help would be appreciated. Thanks.
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According to this page the speed bleeders for GMC Sierra front calipers are M10-1.5 X 33mm:
https://shop.advanceautoparts.com/fi...crew,484-152.1)
__________________
Brian
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09-14-2022, 02:56 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by cycleguy55
According to this page the speed bleeders for GMC Sierra front calipers are M10-1.5 X 33mm:
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No, the "Sierras" are really big front brakes that were made by the Sierra company. I have them on my car but I still bleed the brakes the same way I have for 50 years. It is not the GMC Sierra.  |
09-14-2022, 04:12 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
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09-14-2022, 04:19 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
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Not Ranked
Quote:
Originally Posted by patrickt
No, the "Sierras" are really big front brakes that were made by the Sierra company. I have them on my car but I still bleed the brakes the same way I have for 50 years. It is not the GMC Sierra. |
Dayamn. And Ford U.K. made a Sierra. Details matter. E.R.A., of course, uses GM calipers - but apparently not the ones from pickup trucks?
I can't find any listings for Sierra, other than brake pads. Are they no longer in business?
__________________
Brian
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09-14-2022, 04:23 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by cycleguy55
I can't find any listings for Sierra, other than brake pads. Are they no longer in business?
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They are no longer in business. I think they started out as JFZ, which got eaten up by Sierra, which then went out of business. But, the Wilwood Rebuild Kit #130-2655 fits them, just in case anybody cares.  |
09-14-2022, 04:25 PM
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CC Member
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Join Date: Feb 2014
Location: White City,
SK
Cobra Make, Engine: West Coast, 460 CID
Posts: 2,916
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Not Ranked
Quote:
Originally Posted by patrickt
They are no longer in business. I think they started out as JFZ, which got eaten up by Sierra, which then went out of business. But, the Wilwood Rebuild Kit #130-2655 fits them, just in case anybody cares. |
Got it.
As far as the speed bleeders are concerned, I guess the OP will have to pull the bleeders, measure the thread size and pitch and go from there.
__________________
Brian
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09-14-2022, 04:29 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
I'm going to just shoot from the hip and bet that the speed bleeders that fit the Wilwood #120-11136 also fit the Sierras.
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09-14-2022, 05:34 PM
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CC Member
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Join Date: Jul 2021
Cobra Make, Engine: Era #634
Posts: 25
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Not Ranked
I do not have Girling cans. So the pressure should not be an issue. Maybe Peter P. can get me the thread size. Btw is thread size all I need? Does the length matter much?
Last edited by Lalmeida617; 09-14-2022 at 05:46 PM..
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09-14-2022, 06:57 PM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,025
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Not Ranked
Quote:
Originally Posted by Lalmeida617
I do not have Girling cans. So the pressure should not be an issue. Maybe Peter P. can get me the thread size. Btw is thread size all I need? Does the length matter much?
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Well you know you use a 1/4" bleeder wrench on them, so I don't see how it could be anything other than the SB1428. Here's a pic and chart of all your choices: Speed Bleeder Main Page |
09-15-2022, 11:59 AM
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Senior Club Cobra Member
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Join Date: Mar 2005
Location: Manchester,
NH
Cobra Make, Engine: AK1085 (302 Street), HTM111 (427 Comp), CSX2375R (289 Comp) and COB5999 (427 S/C)
Posts: 19,111
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Not Ranked
I prefer Speed-Pad-Change......... SPC
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