1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Best way to remove the block? What piston size?

Discussion in 'A3/S3 Forum (8L Chassis)' started by StaceyS3, Aug 21, 2011.

  1. StaceyS3
    Offline

    StaceyS3 Active Member

    Joined:
    Dec 17, 2010
    Messages:
    2,108
    Likes Received:
    4
    After having a spark plug and head fail have stripped the engine do it is at the point with the head, turbo, sump, pistons and rods removed, have already got a largeport head and rods winging its way to me at some point curtasy of Bill. But measured the pistons yesterday and the worst one measured 80.88 across the skirt and the spec on elsa states 80.95 nominal size with 0.04 tolerance for wear.

    So am looking at a new set of pistons and might as well rebore it as although the bores were within spec but they are worn so think it would make sense to make it as new and fresh as possible while its in bits

    I'm unsure what size pistons to go for obviously might as well go to the biggest within reason? Am looking at possibly 83mm but am unsure if you get any issues with going that large as it needs to be as reliable as possible as its also my daily driver?

    And last but not least opinions on best way to remove the block would be appriciated as elsa says to drop it out of the bottom but i had to drop the subframe to get the box off when i done the clutch which was an a**e but nothing is mentioned on there that you have to do this, or the only other method that i have heard of is to take the rads and cross member out and take the engine out of the front?

    The only other thing is i have access to a hoist and plenty of tools but i am doing this on stands outside my flat although its in a fairly good area and tucked away i have to have it fairly secure and have been putting most of the bits in the back of the car, although can get bits dumped in mates sheds temporally.

    Any advice would be much appriciated

    Cheers
    #1
  2. <tuffty/>
    Offline

    <tuffty/> Badger 5 Edition Staff Member Moderator

    Joined:
    Sep 14, 2008
    Messages:
    15,727
    Likes Received:
    20
    82.5mm pistons is a safe maximum on a road car... take the engine out through the front....

    <tuffty/>
    #2
  3. ci-ryder
    Offline

    ci-ryder Member

    Joined:
    May 15, 2011
    Messages:
    191
    Likes Received:
    0
    As tufty says take the front end off to get the lump out.

    [​IMG]
    #3
  4. badger5
    Offline

    badger5 RIP S3dave Site Sponsor

    Joined:
    May 28, 2004
    Messages:
    7,260
    Likes Received:
    7
    82.5mm to use std head gasket
    83mm will need to use a different gasket

    JE's are available in reasonsable package ££ currently
    #4
  5. StaceyS3
    Offline

    StaceyS3 Active Member

    Joined:
    Dec 17, 2010
    Messages:
    2,108
    Likes Received:
    4
    Thanks for the infor guys all is under way ;)
    #5
  6. Westy
    Offline

    Westy Double Dark Side! Diesel & 8P

    Joined:
    Dec 2, 2008
    Messages:
    17,295
    Likes Received:
    17
    Chop chop mate you only have 10 days to get it ready for the ring ;)
    #6
  7. StaceyS3
    Offline

    StaceyS3 Active Member

    Joined:
    Dec 17, 2010
    Messages:
    2,108
    Likes Received:
    4
    No chance mate still waiting on bits that were suppose to arrive quite some time ago and hadn't originally planned on completely removing the block but s**t happens lol

    Already looking forward to the next trip as will definately be driving on that one ;)
    #7

Share This Page