Piston Weight; Metal Snap Rings - End Gaps; Metal Snap Rings - Piston Grooves; Metal Snap Rings - Fitting Sequence - Kohler KD 625/3 Workshop Manual

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KD Workshop Manual_cod. ED0053029350_1° ed_ rev. 00
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Piston weight

Weigh pistons when replacing them in order to avoid unbalance.
The difference in weight should not exceed 6 g.

Metal snap rings - End gaps

Insert the snap rings in the lower part of the cylinder, then measure
the distance between the tips.
Compression snap ring
1°
(chrome-plated)
Snap ring
2°
(conical internal
torsional)
3°
Ring (oil scraper)

Metal snap rings - Piston grooves

Ref. Dimensions (mm)
A 0,07 ÷ 0,11
B 0,05 ÷ 0,09
C 0,04 ÷ 0,08

Metal snap rings - Fitting sequence

A = Compression snap ring (chrome-plated)
B = Snap ring (conical internal torsional)
C = Ring (oil scraper)
Note: before inserting the piston in the cylinder, rotate snap rings so
that cuts are misaligned by 120° from one to the next.
Important
Assemble the segments with TOP facing the piston crown.
Disassembly / Reassembly
KD 625/3-626/3
A
0.40 ÷ 0.65
A
A 0.25 ÷ 0.50
Limit value (mm)
0,20
0,16
0,15
4
Limit value
1 mm
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