Shindaiwa 357 Service Manual download pdf (Page 82)

Q Shindaiwa Inc. 1995

82

CRK-59

Section 8 Engine Crankcase

Separate the

Crankcase

Halves

(Two methods)

CRK-53

Figure 8.12 Using a Seal Puller

Figure 8.9 Separating the Case Halves

Method 1 (Figure 8.9)

STEP 1. While holding the crankcase as

shown, separate the crankcase halves by

gently

tapping the crankshaft with a dead-

blow hammer. If necessary, use a heat gun

to pre-heat the clutch-side bearing area to

not more than 210°F.

STEP 2. Using a dead-blow hammer, gently

tap the crankshaft from the remaining

crankcase half.

STEP 3. Remove the piston assembly from the

connecting rod as described in Section 7.

Method 2 (Figure 8.10)

STEP 1. Install a crankcase separator tool

and center it over the saw crankshaft.

STEP 2. Separate the crankcase halves by

tightening the separator’s threaded puller

stud against the crankshaft end.

STEP 3. Using a dead-blow hammer, gently

tap the crankshaft from the remaining

crankcase half.

■ The crankcase separator can also be used

to push the crankshaft from the remaining

crankcase half.

■ Remove the piston assembly from the

connecting rod as described in Section 7.

Crankshaft bearings typically remain in the

crankcase halves. Crankshaft bearings are a

slip-fit on crankshafts, and a press-fit into

crankcase halves.

STEP 1. Use a screwdriver or hook-type seal

remover to pry the seals from the individual

crankcase halves (Figure 8.11)

.

■ To remove the seals from an assembled

crankcase, use a seal puller such as

p/n 22150-96600 (Figure 8.12).

ATTENTION!

Never drill through a seal shell! Chips or

other drilling debris may lodge in crank-

shaft bearings, leading to early bearing

failure.

Never

allow puller tips or other

tools to contact the crankshaft bearings.

Figure 8.10 Using a Case Separator

CRK-63

Crankshaft

Soft-faced

Hammer

Separator

Screwdriver

Seal

Figure 8.11 Seal Removal

CRK-54

p/n 22150-96600

Turn

clockwise to

separate

halves

ENGINE CRANKCASE

Bearing and

Seal Removal

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