9000 L4-1985cc 2.0L DOHC (1986)
![background image](/saab/9000/l4-1985cc_2.0l_dohc/Page-343002.png)
pistons.
Classification Of Pistons And Cylinder Bores:
The piston classification code is stamped on the piston crown. The codes for servicing are: AB, B, C.
The cylinder classification code is stamped on the block adjacent to each cylinder.
Cylinders are either class A or class B, both of which may occur in the same block.
NOTES:
Standard piston sizes A are not available as a spare part.
Piston clearance specification is a nominal value.
Hepolite Piston Sizes:
Standard A
89.967 - 89.977 mm (3.5420 - 3.5424 in)
Standard AB
89.977 - 89.985 mm (3.5424 - 3.5427 in)
Standard B
89.985 - 89.993 mm (3.5427 - 3.5430 in)
Standard C
89.993 - 90.009 mm (3.5430 - 3.5437 in)
First oversize (0.5 mm)
90.470 - 90.485 mm (3.5618 - 3.5624 in)
Second oversize (1.0 mm)
90.970 - 90.985 mm (3.5815 - 3.5821 in)
Piston clearance
0.015 - 0.043 mm (0.0006 - 0.0017 in)
Mahle Piston Sizes:
Standard A
89.970 - 89.980 mm (3.5421 - 3.5425 in)
Standard AB
89.980 - 89.988 mm (3.5425 - 3.5428 in)
Standard B
89.988 - 89.996 mm (3.5428 - 3.5431 in)
Standard C
89.996 - 90.012 mm (3.5431 - 3.5438 in)
First oversize (0.5 mm)
90.470 - 90.485 mm (3.5618 - 3.5624 in)
Second oversize (1.0 mm)
90.970 - 90.985 mm (3.5815 - 3.5821 in)
Piston clearance
0.011 - 0.040 mm (0.0004 - 0.0016 in)
Classification, Piston/Cylinder/Clearance:
A/A
0.030 - 0.050 mm
AB/A
0.022 - 0.040 mm
AB/B
0.032 - 0.050 mm
B/A
0.014 - 0.032 mm
B/B
0.024 - 0.042 mm