Engine - Piston Cooling Valve Replacement

S70/V70/C70
2000

Section
2

Group
22

No.
0006

Year
00

Month
11

Reference:
This Service Bulletin replaces the previous Service Bulletin 220006 from December 1999, which should be discarded.

Purpose:
New time allowance

Piston cooling valve, replacement

Background
Oil cooling of the pistons has been introduced for all Volvo manufactured gasoline engines This Service Bulletin describes how to replace the piston cooling valve.





Materials

Replacement of the piston cooling valve

Replacing piston cooling valves

1
Removing the timing belt and mechanical timing belt tensioner

Remove the timing belt, see VADIS: Function group 2, Repair/Removal, replacement and installation, Section 21 Engine, Replacing the timing belt/idler pulley/belt tensioner

Remove the timing belt tensioner Remove the idler pulley. Remove the screw securing the inner timing cover to the cylinder head.

Raise the car. Continue with VADIS method: Replacing the timing belt/idler pulley/belt tensioner.

Remove the vibration damper.

2
Removing components





Remove:

- the two screws (1) securing the inner timing cover to the cylinder block

- the lower belt guard at the oil pump housing.

Press the inner timing cover off the flange around the coolant pump. Start at the lower edge of the pump.

Hold the cover out of the way. Remove the piston cooling valve (2) and the seal washer.

3
Installing components





Install:

- a new piston cooling valve (2) with a new seal washer. Tighten to 35 Nm.

- the inner timing cover. First press the cover into place over the flange at the top of the coolant pump. Then press the remaining section of the cover into place over the flange around the pump. Check that the cover is correctly positioned.

- the we screws (1) securing the inner timing cover to the cylinder block.

- the lower belt guard.

4
Installing the timing belt

Install:

- the screw securing the inner timing cover to the cylinder head.

- idler pulley. Tighten to 25 Nm.

- the timing belt tensioner. Screw in the center screw by hand. Ensure that the fork on the tensioner centers above the cylinder block rib. Check that the Allen hole on the eccentric is at "10 O'CLOCK".

Continue with the method in VADIS: Replacing the timing belt/idler pulley/belt tensioner from the section installing the timing belt inclusive.





WARRANTY STATEMENT: Claims may be submitted under the New Car Warranty when there is a documented customer complaint, using claim type 01.