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Plasti gauge

Discussion in 'A3/S3 Forum (8L Chassis)' started by hoffmanvp3, Oct 19, 2013.

  1. hoffmanvp3
    Offline

    hoffmanvp3 Active Member

    Joined:
    Sep 10, 2013
    Messages:
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    Does any one know which colour of Plasti gauge to use for measuring your crank main and con rod clearances?
    As im getting conflicting info of Elsawin.

    [TABLE]
    [TR]
    [TD]Measuring radial clearance of conrods
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]Special tools and workshop equipment required
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]t
    [/TD]
    [TD]Plastigage
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]Procedure
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Remove conrod bearing caps.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Clean bearing caps and bearing journals.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Place Plastigage onto bearing journal or into bearing shells corresponding to width of bearing.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Fit conrod bearing cap and tighten to 30 Nm. Do not rotate crankshaft.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Remove conrod bearing caps once more.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Compare width of Plastigage with measurement scale:
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]Radial clearance:
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]l
    [/TD]
    [TD]New: 0.01 ... 0.05 mm.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]l
    [/TD]
    [TD]Wear limit: 0.12 mm.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]–
    [/TD]
    [TD]Renew bolts for conrod bearings.
    [/TD]
    [/TR]
    [/TABLE]


    and

    [TABLE]
    [TR]
    [TD]Pistons and conrods - exploded view
    [/TD]
    [/TR]
    [/TABLE]
    [​IMG] Note
    [TABLE]
    [TR]
    [TD]Oil spray jet and pressure relief valve → Fig.
    [/TD]
    [/TR]
    [/TABLE]
    [​IMG]
    [TABLE]
    [TR]
    [TD]1 -
    [/TD]
    [TD]Piston rings
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Offset gaps by 120°
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Use piston ring pliers to remove and install
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]“TOP” must face towards piston crown
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Checking ring gap → Fig.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Checking ring-to-groove clearance → Fig.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]2 -
    [/TD]
    [TD]Piston
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Checking → Fig.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Mark installation position and cylinder number
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Arrow on piston crown points to pulley end
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Install using piston ring clamp
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Piston and cylinder dimensions → Chapter
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]3 -
    [/TD]
    [TD]Conrod
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Only renew as a complete set
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Mark cylinder number -B-
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Installation position: Markings -A- face towards pulley end
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]With oil drilling for piston pin lubrication
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]4 -
    [/TD]
    [TD]Conrod bearing cap
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Mark cylinder number -B-
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Installation position: Markings -A- face towards pulley end
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]5 -
    [/TD]
    [TD]30 Nm + 90° ([SUP]1[/SUP]/[SUB]4[/SUB] turn) further
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Renew conrod bolt → Item
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Lubricate threads and contact surface
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]To measure radial clearance, tighten to 30 Nm but do not turn further
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]6 -
    [/TD]
    [TD]Bearing shell
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Upper bearing shell with oil hole for piston pin lubrication
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Note installation position
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Do not interchange used bearing shells (mark positions)
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Ensure tight fit in retaining lugs
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Axial clearance (new): 0.10 ... 0.35 mm
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Axial clearance: wear limit: 0.40 mm
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Measuring radial clearance → Chapter
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]7 -
    [/TD]
    [TD]Cylinder block
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Checking cylinder bore → Fig.
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Piston and cylinder dimensions → Chapter
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]8 -
    [/TD]
    [TD]Conrod bolt
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Renew
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]9 -
    [/TD]
    [TD]Circlip
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]10 -
    [/TD]
    [TD]Piston pin
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]If difficult to move, heat piston to approx. 60 °C
    [/TD]
    [/TR]
    [/TABLE]

    [TABLE]
    [TR]
    [TD]q
    [/TD]
    [TD]Remove and install using drift -VW 222 A-
    [/TD]
    [/TR]
    [/TABLE]
    #1
  2. hoffmanvp3
    Offline

    hoffmanvp3 Active Member

    Joined:
    Sep 10, 2013
    Messages:
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    66
    Think i just answered my own question lol
    Plasti gauge PL-X but can some one confirm this please?

    cheers
    Last edited: Oct 19, 2013
    #2

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