Table 6-34. Camshafts and Drives Overhaul Standards

Table 6-34. Camshafts and Drives Overhaul Standards

Sizes and fits

Ref.

Fig

of new Parts

letter

Component

No.

Point of measurement

Wear limits

Outside diameter of journal on camshaft

B-5

1.3085

Camshafts

1.3090

1.3100

B-4

1.3135

Inside diameter of camshaft bearing in cylinder

1.3120

1.3130

Fit of journal in bearing

B-4

0.0050L

0.0020L 0.0040L

X-L

B-5

0.0010

0.0020

M a x i m u m out-of-round of camshaft journal

B-5

(full indicator reading)

0.0020

0.0150

B-5

Maximum runout of center journal when

s u p p o r t e d on end bearing (full indicator

reading)

1.3090

Outside diameter of camshaft pilot bearing at

B-5

1.3100

end plate

Inside diameter of split bushing-type bearing in

1.3120 1.3130

B-5

camshaft end plate

Fit of camshaft pilot in end plate bushing-type

B-5

0.0020L 0.0040L

Q-N

bearing

0.4030

B-5

0.4000

0.4090

Camshaft lobe lift

2.4965

Camshafts

2.4960

Outside diameter of large journal on end of

B-5

2.4975

camshaft

2.5000

2.5020

Inside diameter of bearing surface in camshaft

B-5

2.5010

gear housing

cam-

Upper

0.0025L 0.0045L

Fit of journal in bearing

B-5

0.0065L

G-K

1.6220

shaft drive quill

Outside diameter of hub on gearshaft

B-5

1.6230

1.6210

1.6250

bevel

gear-

Inside diameter of bore in upper adapter

B-5

1.6260

1.6270

shafts

0.0020L 0.0040L

B-5

Fit of hub in adapter bore

F-B

1.2710

1.2720

B-5

Inside diameter of hub on gearshaft

1.2700

1.2705

B-5

Outside diameter of upper oil transfer plug

0.0005L 0.0020L

Fit of plug in hub

B-5

E-C

Camshaft drive

0.6295 0.6305

Inside diameter of quill (both ends)

B-5

0.6320

0.6275

quills

0.6280

Spherical outside diameter of upper oil transfer

B-5

0.6265

plug

0.0015L 0.0030L

Fit of upper quill plug in quill bore

0.0060L

B-5

D-A

0.6275

Spherical outside diameter of lower oil transfer

0.6280

0.6265

B-26

plug

Camshaft drive

Fit of lower quill plug in quill bore

0.0060L

B-26

0.0015L 0.0030L

UU-A

quills

B-5

Camshaft end

Outside diameter of oil seal

1.5010

B-5

1.5050

plate

Inside diameter of camshaft end plate

1.4990

B-5

1.5000

Fit of oil seal in end plate bore

B-5

H-J

0.0010T 0.0060T

Note. Refer to paragraph 6-3b for explanation

of symbols.

Table 6-35. Camshaft Drive Housing and Cover Plate Standard and Oversize

Stud Identification

Ref.

No.

Fig.

Stud size

Setting

No.

req'd

No.

height

Length

B-5

3 / 8-16 (15 / 16) x 3 / 8-24 (13 / 16) x 1-15 / 16 (STD)

1-5 / 32

(0.003 in. OS)

(0.007 in. OS)

(0.012 in. OS)

B-5

1 / 4-20 (19 / 32) x 1 / 4-28 (21 / 32) x 1-5 / 16 (STD)

3/4

(0.003 in. OS)

(0.007 in. OS)

(0.012 in. OS)

d. Assembly. Refer to figures 6-213 through 6-

Note. Refer to figure 6-1 for oversize stud

207.

identification.

6-180