Inspection Of Valve Spring - TOHATSU MFS 60A Service Manual

Compress valve spring 7 by using compressor 8, remove
10.
cotter 9, and then, spring and valve 0.
Valves, springs and other related parts should be
arranged in the order they are removed.
Valve Spring Compressor 8 :
Commercially available item

9) Inspection of Valve Spring

Measure valve spring free length a. Replace if the length is
1.
less than specified value.
Valve Spring Free Length a : Standard Value
38.7 mm (1.52 in)
Functional Limit :
37.1 mm ( 1.46 in)
Measure valve spring inclination b. Replace if the angle is
2.
over specified value.
Valve Spring Inclination Limit b :
2.0 mm (0.08 in)
4st 60 2019
8
a
b
9
7
0
5
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