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Thread: Just bought an 83, Lots of questions

  1. #81
    Senior Member
    Join Date:  Nov 2013

    Location:  NYS

    Posts:    2,040

    My VIN:    Formerly 10372, currently 4728

    Quote Originally Posted by Fanatic View Post
    Yes, measure the groove
    1/8"
    VIN 4728 is on the road...

  2. #82
    Member
    Join Date:  Sep 2017

    Posts:    34

    I measured the groove in the piston and it is 3.4mm tall. I also included a pic of the original seal with a smaller lip on the inside compared to the Centric seal with a taller lip. If the stock IMG_20170924_083852725[1].jpgand replacement pistons' grooves measure 3.4mm then Centric kit is incorrect and fluid will seep past the seal.

  3. #83
    Member
    Join Date:  Sep 2017

    Posts:    34

    I used a digital calipers to measure the groove height.

  4. #84
    Senior Member
    Join Date:  Nov 2013

    Location:  NYS

    Posts:    2,040

    My VIN:    Formerly 10372, currently 4728

    I don't have a digital caliper, I used a ruler.

    I'll get a metric measurement & post a pic. The pics you posted look like the dust boots....I don't think that has anything to do with sealing the piston against the bore.

    This is what matters for sealing the piston:

    IMG_1120.jpg
    VIN 4728 is on the road...

  5. #85
    Senior Member
    Join Date:  Nov 2013

    Location:  NYS

    Posts:    2,040

    My VIN:    Formerly 10372, currently 4728

    Quote Originally Posted by Rich_NYS View Post
    I don't have a digital caliper, I used a ruler.

    I'll get a metric measurement & post a pic. The pics you posted look like the dust boots....I don't think that has anything to do with sealing the piston against the bore.

    This is what matters for sealing the piston:

    IMG_1120.jpg
    mm

    20170924_163934.jpg
    VIN 4728 is on the road...

  6. #86
    Member
    Join Date:  Sep 2017

    Posts:    34

    Yes, it is the dust boot. The boot is incorrect for the piston. The original seal fits in the groove perfectly. The Centric doesn't.

  7. #87
    Senior Member DMC-81's Avatar
    Join Date:  Apr 2014

    Location:  Florida

    Posts:    1,326

    My VIN:    <2000

    Club(s):   (DCF)

    Quote Originally Posted by Fanatic View Post
    Yes, it is the dust boot. The boot is incorrect for the piston. The original seal fits in the groove perfectly. The Centric doesn't.
    Yeah, I agree. I looked up your Centric part number and for Summit at least, it had 122 European applications including the Lotus Esprit, but no Delorean.
    Dana

    Delorean status: CECF 2017 Platinum Award winner. Still tinkering...

    Pictures and comments of my restoration journey are in the albums section on my profile.

    .

  8. #88
    Member
    Join Date:  Sep 2017

    Posts:    34

    I just received the rebuild kit from DMC Midwest and the dust boots are correct. I found the Centric part # on an older DMCTalk discussion.

  9. #89
    Member
    Join Date:  Sep 2017

    Posts:    34

    Are there a rebuild kits available for the brake master cylinder and the clutch slave cylinder? I purchased new but I would like to rebuild my originals for backups.

  10. #90
    Delorean Guru
    Join Date:  May 2011

    Location:  Northern NJ

    Posts:    6,171

    My VIN:    10757

    Club(s):   (DMA)

    It is getting harder and harder to get kits and the cross-references are getting old and they are drying up. Literally. A lot of the stock is NOS and is getting too old to use. Try Special T, he still had them. if your old cylinders are pitted they can be sleeved. Check with White Post.
    David Teitelbaum

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