ar0140d912901ad

Processing and repairing the crankcase sealing surface

Type ar · emne 01.40 · version 0100 · 2008-07-23

Gælder for: ENGINE 900.917 /918 /919 in MODEL 668, 670

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 1 Motor › 01 Motor komplet, motorudluftning, topstykke, motorblok › 01.40 Motorblok, takthusdæksel, endedæksel — Serie 668 · Serie 670 · Serie 900 (modeller 917, 918, 919)

EinPAS 15 Motor › 15.15 forbrændingsmotor komplet/motorblok/krumtapdrev › 15.15.31 motorblok/olieudskiller/udluftning — Serie 668 · Serie 670 · Serie 900 (modeller 917, 918, 919)

AR01.40-D-9129-01AD

Processing and repairing the crankcase sealing surface

Repair materials

Number

Designation

Order number

BR00.45-Z-1014-08A

Repair kit for crankcase sealing surface (Titanium Putty H. P) 2-component material with acetone universal quick-cleaner
Order no.: 10765

ITW Devcon Industrial Products GmbH
Liebigstr. 21
24145 Kiel
Germany
Tel: +49 431 71883-0
Fax: +49 431 71883-25
www.devconeurope.com

Processing and repairing the crankcase sealing surface

W01.40-1079-11

1 Close off coolant holes (1) which lie in the area of the sealing surfaces to be machined using the prepared stop plugs (2).

2 Cover sealing surface and all openings of the cylinder crankcase which are not machined with adhesive tape.

Leave area around the sealing surfaces to be machined over a large area.

3 Clean sealing surface with corrosion grains or pitting (arrow) over a large area with a wire brush until this is metallic bright.

Processing and repairing the crankcase sealing surface

W01.40-1080-12

4 Mill out corrosion scars or pits (arrow) using a 5 mm diameter ball cutter to a depth of about 0.7 to 1.0 mm.

Use a hand drill.
Hand drill, ball cutter 5 mm dia.
http://gotis.aftersales.mercedes-benz.com

5 Clean and degrease sealing surface and milled out locations.

Acetone universal rapid cleaner is contained in the repair kit.

Processing and repairing the crankcase sealing surface

W01.40-1081-11

The repair mass may only be applied for an ambient temperature between 15°C and 32°C. The processing time is about 21 minutes for an ambient temperature of 21°C.

6 Thoroughly mix together the basic material and hardener in the correct proportions.

The correct mixing ratio of the basis material and hardener is 3:1 by volume or 4.3:1 by weight. The repair mass should not contain any air pockets from mixing. It must be like putty and lump-free and have a constant color.
Spatula
http://gotis.aftersales.mercedes-benz.com

7 Apply repair mass over the cleaned sealing surfaces (arrow) thinly and evenly using a spatula.

A number of layers may have to be applied in order to achieve the required thickness of the repair mass.

8 Wet spatula with water and wipe smooth the repair mass.

Allow the repair mass to harden at an ambient temperature of
about 21°C for about 4 hours.
The hardening time will be longer at a low interior temperature. Never warm using an open flame.

9 Remove excess repair mass. Smoothen the repair points as required.

10 Remove adhesive tape from the sealing surface of the cylinder crankcase and thoroughly clean the adhesive locations.

11 Pull out stop plug from the coolant holes in the cylinder crankcase.

No dirt should enter the coolant bores.