Broken bleed valve

Mike Arnold · Aug 30th, 2014, 17:04

Drats. Just replaced the discs on my Amazon (removed the calipers). Whilst bleeding the brakes I was starting on the last corner when the bleed valve in the front nearside sheared off! Rusted in solid. I guess I can drill it out, carefully run a tap into the thread to clean it out and put in a new valve. Very annoying.

Does anyone know what thread it is? Single circuit with Girling calipers. I have a full set of UNF taps.

volvogv · Aug 30th, 2014, 23:17

I hope you have better luck than I did. I tried all of the usual tricks and nothing worked. I ended up having to buy a new caliper.

Mike

Bigbunt · Aug 31st, 2014, 13:28

How about just ordering a bleed valve and determining from that? Just go to the hardware store and try to find a nut that fits...You may as well order a spare or two while you're at it. They're cheap and you'll probably need one again anyway.

Mike Arnold · Aug 31st, 2014, 17:43

Done it. Found an old bleed valve in the bottom of my junk box. The thread is 3/8in UNF.

Managed to carefully drill out the old valve, cleaned up the thread and put in the new(ish) bleed valve. Bingo!

Volvorama · Aug 31st, 2014, 22:40

Well done!

pookie · Aug 31st, 2014, 23:37

Proper motor engineering that!
Nice one.

Salut!

Pookie

Aug 30th, 2014, 17:04	#1
Mike Arnold Master Member Last Online: Jun 11th, 2024 16:54 Join Date: Dec 2001 Location: Stockport, Gtr Manchester View Photos By: Mike Arnold	Broken bleed valve Drats. Just replaced the discs on my Amazon (removed the calipers). Whilst bleeding the brakes I was starting on the last corner when the bleed valve in the front nearside sheared off! Rusted in solid. I guess I can drill it out, carefully run a tap into the thread to clean it out and put in a new valve. Very annoying. Does anyone know what thread it is? Single circuit with Girling calipers. I have a full set of UNF taps. __________________ Mike Arnold. 1966 122S

Aug 31st, 2014, 17:43	#4
Mike Arnold Master Member Last Online: Jun 11th, 2024 16:54 Join Date: Dec 2001 Location: Stockport, Gtr Manchester View Photos By: Mike Arnold	Done it. Found an old bleed valve in the bottom of my junk box. The thread is 3/8in UNF. Managed to carefully drill out the old valve, cleaned up the thread and put in the new(ish) bleed valve. Bingo! __________________ Mike Arnold. 1966 122S

Aug 31st, 2014, 22:40	#5
Volvorama Too many cats Last Online: Aug 24th, 2023 09:02 Join Date: Aug 2011 Location: Birmingham	Well done! __________________ Mark

Aug 31st, 2014, 23:37	#6
pookie Premier Member Last Online: Apr 2nd, 2021 21:13 Join Date: May 2006 Location: Stockport	Proper motor engineering that! Nice one. Salut! Pookie __________________ Growing old disgracefully

Aug 30th, 2014, 23:17	#2
volvogv Master Member Last Online: Aug 29th, 2016 19:28 Join Date: Oct 2013 Location: Seattle	I hope you have better luck than I did. I tried all of the usual tricks and nothing worked. I ended up having to buy a new caliper. Mike

Aug 31st, 2014, 13:28	#3
Bigbunt Bigbunt Last Online: Today 13:52 Join Date: Apr 2014 Location: Guilford, Connecticut	How about just ordering a bleed valve and determining from that? Just go to the hardware store and try to find a nut that fits...You may as well order a spare or two while you're at it. They're cheap and you'll probably need one again anyway.

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