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

main. bearing caps

Discussion in 'A3/S3 Forum (8L Chassis)' started by sandwich1987, Apr 10, 2013.

  1. sandwich1987

    sandwich1987 Member

    Joined:
    Sep 2, 2011
    Messages:
    247
    Likes Received:
    14
    Managed to source amother agu block for my eventual striker engine...but the seller hasn't included the main bearing caps, I've sent him a msg but if he dmeant have them can I use The ones I had from my other block or are they all individually line bored?
    Chee're
     
  2. Google AdSense Guest Advertisement



    to hide this advert.
  3. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp?

    Joined:
    Jun 19, 2009
    Messages:
    3,706
    Likes Received:
    469
    If you uses different caps on another block it will need line hone
     
  4. sandwich1987

    sandwich1987 Member

    Joined:
    Sep 2, 2011
    Messages:
    247
    Likes Received:
    14
    Will that mean I have to use oversize bearings? Think it will probably be better to source a complete engine! Oh well another block for the scrappy :(
     
  5. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp?

    Joined:
    Jun 19, 2009
    Messages:
    3,706
    Likes Received:
    469
    No mate

    The cap are machined at the mating face bring the the cap closer to the block if you know what i mean then they are torque down to the block then line honed to the standard size
     
  6. sandwich1987

    sandwich1987 Member

    Joined:
    Sep 2, 2011
    Messages:
    247
    Likes Received:
    14
    Yeah I get what you mean, the height of the cap is reduced slightly.
     
  7. sandwich1987

    sandwich1987 Member

    Joined:
    Sep 2, 2011
    Messages:
    247
    Likes Received:
    14
    i have managed to get in contact with the original seller of the block so i think im going to be ok and match the original caps....phewwwww. now i just need to wait for an agu/aeb head and then order all my stuff from IE. Andrew do you know if going for the 83mm bore, is it 83mm exactly that the machine shop bore it to? Or is the boring size/tolerance sent along the stroker kit? cheers
     
  8. Andrew@A.L.D

    Andrew@A.L.D May add NOS to 600+bhp?

    Joined:
    Jun 19, 2009
    Messages:
    3,706
    Likes Received:
    469
    No if you get a 83mm bore piston doesn't alway mean you get a 83mm piston

    A machine shop will measure all the pistons and bore the block accordingly to each pistons to get the right piston to wall clearance.
     
  9. superkarl

    superkarl MAN OF STEEL

    Joined:
    Mar 28, 2010
    Messages:
    8,401
    Likes Received:
    1,596
    pistons are usually .05mm smaller than the bore they are designed for
     
  10. lloydie1

    lloydie1 Member

    Joined:
    Feb 8, 2012
    Messages:
    68
    Likes Received:
    2
    I have JE pistons and they are 0.1 undersize which is apparently normal for JE, so '83mm' pistons in my case are 82.90
     

Share This Page