Note

Lubricate seals with oil only immediately before installation; never keep lubricated seals in storage for a long time.

2. Place insulators on bols.

3. Guide round seals over the threaded zone with the tapered adapter of Special Tool

P 9511, and slide on to the reduced shaft head end of the bolts.

Prepare left and right crankcase sections for assembling. Coat mating surfaces and bearing seats of the left section lightly with Loctite No. 574.

Assemble the sections and tighten the outer crankcase M 8 nuts until there is contact between both mating surfaces.

4. Insert the prepared bolts into the right crankcase section from underneath against the metal stop.

Important

O-ring must not be pushed on to the bolt collar (10 mm dia.)!

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Important

O-ring must not be pushed on to the bolt collar (10 mm dia.)!

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Crankcase Mounting Bolts/Studs and Nuts

Printed in Germany - III, 1989

Carrera 4 Table Of Contents Carrera 2 Addendum

13 Engine, Crankshaft, Pistons

6. Push round seal carefully off the tapered Assembly sleeve 9511

sleeve, using the A side (thin wall) of the cylinder sleeve.

6. Push round seal carefully off the tapered Assembly sleeve 9511

sleeve, using the A side (thin wall) of the cylinder sleeve.

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7. Remove tapered sleeve and use B side (thick wall) of cylinder sleeve to push round seal carefully into end position, locking at the bolt head to keep it from rotating.

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8. Fit sealing washers (dry) and use B-side of cylinder sleeve to press somewhat more.

9. Lightly tighten the multiple-tooth nuts (with threads oiled) manually.

10. Proceed accordingly for the two studs on the right-hand crankcase section (bearing 1 area).

11. Fit M 10 x 1.25 hexagon nut and A 10.5 washer to stud, with rounded side facing the hexagon nut.

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12. Tighten tie bolts or studs with 50 Nm. Pay attention to tightening sequence.

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13. Tighten outer case screw connection with 25 Nm.

Note

After fitting the right crankcase half, a tube should be pushed on to connecting rod cylinders 1 and 4 as damage protection. If this is not done, the sealing surface may be damaged when the crankcase is turned.

Note

When tightening the bolts, a second person should counter-hold under all circumstances so that the O-rings are not damaged when the tie bolts are turned. Use M 14 sockets from Messrs. Snap on.

Crankcase screw connection

Printed in Germany - VI, 1990

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