240 General: - Brake bleeding & Spider valve

johnny diamond · Jul 16th, 2023, 08:22

fitted new front caliper's and a master cyl what is the correct way to reset the spider valve,? or can I remove the shuttle from inside to prevent it activating,?

loki_the_glt · Jul 16th, 2023, 09:18

Supposedly you can disconnect the sender wire, slacken off the sender then re-tighten the sender and re-connect the sender wire.

According to the Haynes book of Myths, if you remove it completely you need to use a new copper washer when re-inserting/replacing the sender.

johnny diamond · Jul 16th, 2023, 09:27

It's not the brake failure light that's bothering me, it's bleeding the brake's if it's moved and only allowing secondary/emergency brake's to operate.

Bob 1967 · Jul 16th, 2023, 16:51

I changed all 4 callipers(rear hard lines too) and master cylinder.
Didn't touch the spider valve.
I did use the easy bleed system and went through a fair amount of brake fluid to flush it all through.
I had tried a Vacuum pump first but didn't achieve the results I was expecting.

johnny diamond · Jul 16th, 2023, 17:42

Since I posted I have removed spider and dismantled the shuttle was siezed in the middle position and filthy.!! so I have ordered a new one,we will see if that cure's it

Big 240 · Jul 20th, 2023, 14:32

Quote:

Originally Posted by johnny diamond

Since I posted I have removed spider and dismantled the shuttle was siezed in the middle position and filthy.!! so I have ordered a new one,we will see if that cure's it

Can I ask where you purchased it from please?

johnny diamond · Jul 21st, 2023, 21:18

Quote:

Originally Posted by Big 240

Can I ask where you purchased it from please?

purchased from Brookhouse and it cured my problem

Stephen Edwin · Aug 4th, 2023, 15:43

This is interesting, but beyond my little experience. I remember a thread by Nick Lewin about brake difficulties. He achieved some improvement by having the new master cylinder fitment corrected. There were posts about the sequence in which brake nipples should be bled, and about bleeding with the rear of the car jacked up to bleed the spider valve effectively. A very interesting thread if you can find it.

Regards.

Jul 16th, 2023, 08:22	#1
johnny diamond New Member Last Online: Nov 17th, 2023 12:10 Join Date: May 2023 Location: doncaster	Brake bleeding & Spider valve fitted new front caliper's and a master cyl what is the correct way to reset the spider valve,? or can I remove the shuttle from inside to prevent it activating,?

Jul 16th, 2023, 09:18	#2
loki_the_glt Torquemeister Last Online: May 19th, 2024 17:26 Join Date: Dec 2004 Location: Asgard, Cheshire	Supposedly you can disconnect the sender wire, slacken off the sender then re-tighten the sender and re-connect the sender wire. According to the Haynes book of Myths, if you remove it completely you need to use a new copper washer when re-inserting/replacing the sender. __________________ loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4.

Jul 16th, 2023, 16:51	#4
Bob 1967 Master Member Last Online: May 22nd, 2024 09:17 Join Date: Aug 2017 Location: Dublin View Photos By: Bob 1967	I changed all 4 callipers(rear hard lines too) and master cylinder. Didn't touch the spider valve. I did use the easy bleed system and went through a fair amount of brake fluid to flush it all through. I had tried a Vacuum pump first but didn't achieve the results I was expecting. __________________ Cowboy used to be a trade , now it means lack of one. Last edited by Bob 1967; Jul 16th, 2023 at 16:53.

Aug 4th, 2023, 15:43	#8
Stephen Edwin Premier Member Last Online: Oct 26th, 2023 20:42 Join Date: Jun 2010 Location: Thurrock	This is interesting, but beyond my little experience. I remember a thread by Nick Lewin about brake difficulties. He achieved some improvement by having the new master cylinder fitment corrected. There were posts about the sequence in which brake nipples should be bled, and about bleeding with the rear of the car jacked up to bleed the spider valve effectively. A very interesting thread if you can find it. Regards. __________________ *The most savage controversies are those about matters as to which there is no good evidence either way.* —Bertrand Russell

Jul 16th, 2023, 09:27	#3
johnny diamond New Member Last Online: Nov 17th, 2023 12:10 Join Date: May 2023 Location: doncaster	It's not the brake failure light that's bothering me, it's bleeding the brake's if it's moved and only allowing secondary/emergency brake's to operate.

Jul 16th, 2023, 17:42	#5
johnny diamond New Member Last Online: Nov 17th, 2023 12:10 Join Date: May 2023 Location: doncaster	Since I posted I have removed spider and dismantled the shuttle was siezed in the middle position and filthy.!! so I have ordered a new one,we will see if that cure's it

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