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Bleed nipples
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Southernscouse



Joined: 30 May 2024
Posts: 26
Location: Havant Hampshire
PostPosted: Tue Mar 25, 2025 7:16 pm    Post subject: Bleed nipples Reply with quote
1954 Austin Devon van can anyone tell me the thread tpi of both front and back brake bleed nipples have put the same question on the accc site thanks
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Ray White



Joined: 02 Dec 2014
Posts: 7128
Location: Derby
PostPosted: Tue Mar 25, 2025 9:38 pm    Post subject: Re: Bleed nipples Reply with quote
Southernscouse wrote:
1954 Austin Devon van can anyone tell me the thread tpi of both front and back brake bleed nipples have put the same question on the accc site thanks


I think they are 3/8" x 24 TPi UNF.

Please don't just take my word for it.
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bjacko



Joined: 28 Oct 2013
Posts: 523
Location: Melbourne Australia
PostPosted: Wed Mar 26, 2025 5:54 am    Post subject: Wheel Cylinder Bleed Nipple Reply with quote
The wheel cylinders do not appear in the Lockheed Parts catalogue so I assume must be some other make. 1959 and on do appear.
Classicbrakeandelectric8 in Lincolnshire have a set of wheel cylinders for sale, maybe they can advise you the make and or part number/thread type for the bleeders.
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1938 Morris 8 Ser II Coupe Utility (Pickup)
1985 Rover SD1 VDP
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ukdave2002



Joined: 23 Nov 2007
Posts: 4240
Location: South Cheshire
PostPosted: Wed Mar 26, 2025 9:14 am    Post subject: Reply with quote
I'd advise checking the actual threads on the cylinders, reason being that pattern parts may well have a different thread to original.
They are almost certainly going to be UNF threads, probably either 1/4 " or 3/8". You may have different brands of cylinders on the same axle, so check each cylinder.
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