Author Topic: brake master cylinder advice/help please  (Read 792 times)

Offline edwardgt350

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brake master cylinder advice/help please
« on: June 25, 2018, 01:18:14 AM »
bought a new brake master cylinder for a 66 gt350. new one doesnt come with a push rod and we cant remove the old push rod from the housing. we tried placing it in a vice and using a slide hammer but no luck removing it.
any suggestions?

Offline must69

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Re: brake master cylinder advice/help please
« Reply #1 on: June 25, 2018, 04:40:51 AM »
Did you try soaking it in some sort of lubricant or "nut cracker"?  May just need to soak awhile.

Offline NEFaurora

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Re: brake master cylinder advice/help please
« Reply #2 on: June 25, 2018, 10:11:07 AM »

Hang the rod from a bar on the vise and just bang it off... It will go...You have to break the internal clip to get it off..

:o)

Tony K.



Tony Kovar (NEFaurora@aol.com)
1965 Mustang Convertible 200 cid 3spd manual
1966 Mustang Convertible Sprint 200 C4 Auto
2007 Mustang Convertible V6 Auto with "Pony Package".
1966 Mustang Sprint 200 Registry Owner/Moderator
MCA#70001

Offline Hipo giddyup

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Re: brake master cylinder advice/help please
« Reply #3 on: June 25, 2018, 01:50:03 PM »
I had the same problem a little while ago. Since the internal piston should be replaced, I used a cut-off wheel to cut it almost in half. Then I used a screwdriver and twisted between the two halves to split them apart. In my case the clip was retained on the push rod and I could use it again in the new piston.
1967 Springtime Yellow Coupe, 289 2v 3spd, Metuchen built, Nov. 17th 66'
1966 Sahara Beige Coupe, 289 2v 3spd, Dearborn built, July 21st 66'
1964 1/2 Pagoda Green Coupe, 260 2v 3spd, Dearborn built, June 30th 64'
1966 GT350 Fastback clone, 289 HiPo, 725cfm Holley, 4spd, SanJose built, Nov 25th 65'

Offline 67gtasanjose

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Re: brake master cylinder advice/help please
« Reply #4 on: June 25, 2018, 01:52:10 PM »
I had the same problem a little while ago. Since the internal piston should be replaced, I used a cut-off wheel to cut it almost in half. Then I used a screwdriver and twisted between the two halves to split them apart. In my case the clip was retained on the push rod and I could use it again in the new piston.

^^^
What HE said! You'll want to re-use the clip.
Richard Urch

1967 (11/2/66, S.J.) GTA Luxury Coupe, 289-4V w/Thermactor Emissions, C-4, Int./Ext. Decor +many options

2005 (04/05) GT Premium Convertible, Windveil Blue, Parchment Top w/Med. Parchment interior,  Roush Body Appointments

Offline 67350#1242

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Re: brake master cylinder advice/help please
« Reply #5 on: June 25, 2018, 03:22:52 PM »
I came across a clip for 65-73 manual brake push rod:
http://www.american-mustang.com/index.php?main_page=product_info&products_id=6901

If you break yours looks like they're available.  Maybe you can study the picture and figure a way to unlock it with a fabbed up tool?   
67 Coupe SJ 11/16/66
67 GT350 SJ 2/01/67