engine torque

[Brabbs]

Hi

just in the process of rebuilding my 2.2 turbo 1989 (carb) esprit. what I am unable to find is the head torque, big end torque and valve clearance

can any one be so kind to throw some light on this and advise me

kind regards

[davevr6car]

Hi Brabbs,

According to the service notes for the S4 & S4s,

Big end bearings, 104 - 107 nm

Inlet valve clearance 0.13mm to 0.18mm

Exhaust valve clearance 0.25mm to 0.31mm

hope this helps.

cheers

Dave

[troutrou]

According the the workshop manual for turbo and SE, torque for the head bolts is as follows:

Each end pair: 95 Nm

3 middle pairs 100 Nm

Tightening sequence is clockwise working from the center pair towards the outside.

8---6--1--3--9

10--4--2--5--7

[davevr6car]

Hi again,

forgot about the head bolts,

again from the service notes of the S4, S4s and sport 300,

Tighten nuts progressively in a diagonal sequence working outwards from the centre, in five stages.

i) 20Nm,

ii) + 75 angular degrees,

ii) + 40 angular degrees,

iv) wait 5 minutes,

v) + 20 angular degrees

Tightening sequence

8 6 1 3 9

x x x x x

Front-->

x x x x x

10 4 2 5 7

x's represent the head nuts.

cheers

Dave