Page 1 of 2 12 LastLast
Results 1 to 10 of 16
  1. #1
    Join Date
    Aug 2007
    Location
    Bournemouth
    Posts
    185

    Clutch slave cylinder

    Hi.
    My clutch slave cylinder is leaking badly. It's on a Chevy 350 powered Dax. The slave cylinder is mounted on a bracket by an aluminium billet clamp with two nuts and bolts. The assembly is then fitted on two gearbox bellhousing bolts. The slave cylinder has no markings on it saying where it came from or who the manufacturer is. The hydraulic pipe is connected by a banjo fitting. The bleed screw is 11mm.
    The dust cover has a girdling part number in it.
    The slave cylinder looks like a sealed unit and doesn't look as if it can be taken apart.
    From my description is this a standard part that is fitted to the Dax and can anyone point me in the direction to where I can buy a replacement?
    The car build was completed in 2004.

    Thanks in advance.

    David.
    Life is driving the Cobra. The rest of the time is just waiting.

  2. #2
    Join Date
    Jan 2006
    Location
    Chelmsford Essex
    Posts
    814
    It should be a Girling part Brake Clutch Master Cylinder .500 .625 .700 .750 .813 Bore OEM Girling Wilwood.

    There should be a size marked .625 or .750. The size is the bore size usually .750 also known as 3/4 inch. A photo would help if it is different from the link below.

    https://www.ebay.co.uk/itm/Brake-Clu...EAAOSwuJdZdph1

  3. #3
    Join Date
    Aug 2007
    Location
    Bournemouth
    Posts
    185
    Hi Jon. No, it's not that one.
    I believe it's a 7/8" bore and it has no mounting lugs. It is kept in place by a bolted aluminium clamp. The cylinder body has a recess in it to accommodate the clamp. The rear of the body where it accommodates the pressure line and bleed screw is hexagonal.
    I don't yet know how to upload photos on here that can be seen.
    Life is driving the Cobra. The rest of the time is just waiting.

  4. #4
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,861
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  5. #5
    Join Date
    Aug 2007
    Location
    Bournemouth
    Posts
    185
    Hi Aaron. That's the very one! Blimey, with that bore, no wonder my pedal took two feet to operate the clutch!
    Thank you for that. Now to do a little more research to see if they do a bigger bore or if an alternative is available. 😊
    Life is driving the Cobra. The rest of the time is just waiting.

  6. #6
    Join Date
    May 2004
    Location
    STOKE ON TRENT, U.K.
    Age
    54
    Posts
    10,140
    I'm pretty sure that is the only size available.
    If you use a larger bore slave you will usually find that there is not enough travel to fully dissengage the clutch.
    The overly heavy pedal is most likely down to having some sort of Drag Racing clutch fitted (which is not needed in these cars)


    You can use Girling Master Cylinder piston seals to sort out your leak.
    Last edited by dave; 14-10-19 at 07:29 AM.
    ​Pro Cobra Builder
    DB427SC

    DB REPLICAS
    Find us on Facebook
    db427.com
    Low Volume manufacturer of
    ALUMINIUM BODY, ROUND TUBE CHASSIS.
    ORIGINAL SPEC. SUSPENSION COBRAS.
    OEM style stainless SIDEPIPES


  7. #7
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,861
    Quote Originally Posted by Darnpistonbroke View Post
    Hi Aaron. That's the very one!
    Your description of the mounting bracket gave it away .. and I thought "I'm sure I've seen that somewhere.." - I've stared at their page of driveline stuff a lot trying to figure out what clutch bits to buy (in the end I bought a complete drivetrain from MDL in the states to make it simple! )
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  8. #8
    Join Date
    Aug 2007
    Location
    Bournemouth
    Posts
    185
    The clutch I have fitted is a McLeod which is a cut above the norm.
    The usual arrangement is 3/4” master with a 7/8” slave or so I thought?
    What concerns me is the amount of force I need to deliver to a plastic bulkhead!
    What do others have on their cars?

    David.

  9. #9
    Join Date
    Apr 2004
    Location
    East Leake, Nottinghamshire, England.
    Age
    55
    Posts
    9,494
    Quote Originally Posted by Darnpistonbroke View Post
    The clutch I have fitted is a McLeod which is a cut above the norm.
    The usual arrangement is 3/4” master with a 7/8” slave or so I thought?
    What concerns me is the amount of force I need to deliver to a plastic bulkhead!
    What do others have on their cars?

    David.
    That's what I run in mine although the clutch pedal in mine is very heavy I'm used to it now so I don't even notice it most of the time.
    Martin

    351W 416.7 HP and 466.8 ft-lbs

    Running Mega Squirt and Edis 8


  10. #10
    Join Date
    Aug 2007
    Location
    Bournemouth
    Posts
    185
    By the looks of it I'm I have a 3/4" master serving a 5/8" slave. Very heavy pedal and as said earlier, the bulkhead is only fibreglass which in time will not take too much bending and stress.
    Life is driving the Cobra. The rest of the time is just waiting.

Page 1 of 2 12 LastLast

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •