caliper bleed nipple
Thread Starter
Instructor
Joined: Feb 2009
Posts: 178
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From: York UK
caliper bleed nipple
I've just fitted a new Delco rear brake caliper for my '69 350 manual coupe. The old one has 3 bleed nipples but the new one only has two with the third blanked off with a stop screw. Does this mean I only need to bleed two nipples or do I have to replace the stop screw with another nipple and bleed that too? Thanks.
Le Mans Master
Joined: Jul 2000
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From: North Dallas 40 TX
I've just fitted a new Delco rear brake caliper for my '69 350 manual coupe. The old one has 3 bleed nipples but the new one only has two with the third blanked off with a stop screw. Does this mean I only need to bleed two nipples or do I have to replace the stop screw with another nipple and bleed that too? Thanks.
Safety Car
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Just the two in the rear and one in front.
Blanking stud is in all of them. Do the inside one then the outside when bleeding.
Marshal
Blanking stud is in all of them. Do the inside one then the outside when bleeding.
Marshal
Melting Slicks
Joined: Sep 2006
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From: Wichita Kansas
On the rears, there should be two bleeders at the top, one inside, and one outside. Those are what you bleed in the rears. Conversely, on the fronts, there is only one bleeder. Hope this helps
Thread Starter
Instructor
Joined: Feb 2009
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From: York UK
Thanks for your replies. Unbelievable that the caliper would come with a blanking stud instead of a bleed screw. I assumed that the new caliper only needed two bleed screws so I would have only bled two.
Drifting
Joined: Nov 2016
Posts: 1,958
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From: Pittsburgh PA
on the rear- the 2 bleeder screws face the front of the car. Rear side of the caliper is the brake line and a plug. Even if you have a 3rd bleeder here you should not use it.
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you are misunderstanding the responses. There is nothing wrong with your calipers setup.
Thread Starter
Instructor
Joined: Feb 2009
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From: York UK
I had written to Corvette Central before the forum but I got a reply today about the purpose of the plug screw. When the outer calipers are cast they can be either left or right so the opening for the bleed screw which is downward on the other side, is not required and is blanked off.
Le Mans Master
Joined: Aug 2017
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From: Cool Northern Michigan
I had written to Corvette Central before the forum but I got a reply today about the purpose of the plug screw. When the outer calipers are cast they can be either left or right so the opening for the bleed screw which is downward on the other side, is not required and is blanked off.
But, it doesn't matter.
Just a guess. Those plugs in the rear calipers might have aided bleeding the rear sytem as the car was coming down the assembly-line. Something tells me they didn't bother with the four bleeder screws.
Last edited by HeadsU.P.; Jan 15, 2021 at 05:10 PM.
Thread Starter
Instructor
Joined: Feb 2009
Posts: 178
Likes: 2
From: York UK
I think the downward bleed screw was fitted at some time in the past to serve as a stop screw and not used as a bleeder. I waited about six months to get the calipers from Corvette Central due to Covid, but I've the bled front and rear calipers and all went well, so thanks to everyone for your help.