Check/repair cylinder crankcase sealing surface

AR01.40-B-9129TA

Check/repair cylinder crankcase sealing surface

18.06.2020

Engine

904.9, 906.9 in model 958

Represented in engine 904.9

1

Coolant bores

2

Corrosion or recess marks



Remove

1

Remove the cylinder head

Remove/install cylinder head
Engine 904.96/97 in model 958.0

AR01.30-B-5800TA

2

Clear the seating face of the crankcase gasket

Topical note

Information on working sealing surfaces when carrying out engine repairs

AH01.10-N-0002-01A



Check

3

Verify the sealing surface of the crankcase in the regions around the coolant bores (1)

 Critical parts with leaking include areas around the coolant bores (1) towards the outside or the cylinder bore.

 Possibly work and repair the crankcase sealing surface.

Repair

4

Machine and repair the crankcase sealing surface

Engine 904.9, 906.9

AR01.40-B-9129-01TA



.

WF58.50-B-0100-04A

 Allow the two-component mixture to cure at a room temperature of 20°C for approx. 4 hours.

 Utilize a 5 mm diameter spherical milling tool and hand drill.

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

*BR00.45-Z-1014-08A



Install

5

Install the cylinder head

Engine 904.9, 906.9

AR01.30-B-5800TA

 After a curing time of approx. 4 hours at a room temperature of 20 °C, the cylinder head may be installed. Only after 12 additional hours the engine may be connected, otherwise the repair site may show leaks.

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
http://www.devconeurope.com