Skoda Workshop Service and Repair Manuals

Valve gear - Summary of components

1 -

100 Nm

q	to release and tighten use the counterholder -T30004 (3415)-

2 -	Camshaft sprocket

q	with sensor rotor for the Hall sensor -G163-

q	Installation position fixed by woodruff key -Pos. 4-

q	for removal and installation, remove toothed belt → Chapter

3 -	Sealing ring

q	replace → Chapter

4 -	Woodruff key

q	pay attention to correct position

5 -

20 Nm

6 -	Bearing caps

q	Fitting position → Fig.

q	Mounting sequence → Chapter

q	Lightly coat contact surface for bearing cap 1 with sealant -AMV 174 004 01-

7 -

Camshaft

q	Inspecting axial play → Fig.

q	removing and installing → Chapter

q	Slack: max. 0.01 mm

q	Identification → Fig.

8 -	Bucket tappets

q	do not interchange

q	with hydraulic valve clearance compensation

q	check → Chapter

q	lay aside with contact surface facing down

q	before installing check axial play of the camshaft → Fig.

q	oil contact surface

9 -

Collets

10 -	Valve spring retainer

11 -	Valve spring

q	removing and installing:

t	with cylinder head removed with -MP1-211 (VW 541/1a,/5)- and -MP1-213 (2036)- with valve supporting plate -MP1-218-

t	(with cylinder head installed) → Chapter

12 -	Valve stem seal

q	replace → Chapter

13 -	Valve guide

q	Repair of the guide with a collar

q	check → Chapter

q	replace → Chapter

14 -	Cylinder head

q	removing and installing → Chapter

q	inspecting valve guides → Chapter

q	reworking valve seats → Chapter

15 -

Valve

q	do not rework, only grinding in is permissible

q	Valve dimensions → Fig.

inspect camshaft, axial play Special tools and workshop equipment required t  Universal dial gauge holder -MP3-447 (VW 387)- t  Dial gauge Wear limit: max. 0.15 mm Perform measurement with the bucket tappets removed and the first and last bearing cap fitted.

Fitting position of the camshaft bearing cap Pay attention to centre displacement. Numbers on the bearing caps must be legible from the front.

Valve dimensions   Note Valves must not be reworked. Only grinding in is permissible.

Dimension		Inlet valve	Exhaust valve
Ø a	mm	39,5 ± 0,15	32,9 ± 0,15
Ø b	mm	6,92 ± 0,02	6,92 ± 0,02
c	mm	91,85	91,15
α	∠°	45	45

Camshaft identification t  Base circle of the cam: a = Ø 34 mm t  Identification with digits and characters stamped in between the inlet and outlet cams:

Cylinder 1 -arrow I-	E, or A
Cylinder 3 -arrow II-	050