Table 4-52. Exhaust Valves and Guides Wear Limits

TM 9-2815-210-34-2-2

FRAME

NOTE

Readings must be within limits given in table 4-52. The

letter L shows a loose fit. I f readings are not within

given limits, throw away part and get a new one.

I n t a k e valves (1) and exhaust valves (2) were tagged

so fit of each valve stem can be measured in valve guide

it was taken from.

M e a s u r e and note outside diameter of stem of three exhaust valves (2).

M e a s u r e and note inside diameter of three exhaust valve guides (3) 1/8 to 1/4

i n c h from each end of guide. I f diameter is different at each end of guide,

n o t e biggest diameter.

M e a s u r e fit of stem of each exhaust valve (2) in its exhaust valve guide (3).

D o this for all three exhaust valves and exhaust valve guides.

END OF TASK

Table 4-52. Exhaust Valves and Guides Wear Limits

Size and Fit

Index

of New Parts

Wear Limit

Number

Item /Point of Measurement

(inches)

E x h a u s t valve stem outside

diameter

0.4363 to 0.4368

0.4358

E x h a u s t valve guide inside

diameter

0.4388 to 0.4394

0.4420

2 and 3

Fit of exhaust valve stem in

e x h a u s t valve guide

0.0020L

0.0031L

0.0070L