Pickup 2WD L4-2366cc 2.4L SOHC Turbo (22R-TE) (1987)
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Piston Ring: Technical Service Bulletins
Engine - Piston Ring Modifications
REFERENCE ENGINE NUMBER 022 REVISED DATE 11-21-86 MODEL RN5#, RN6#, RN7#
To reduce the possibility of oil consumpion on 22R and 22R-E engines, the following modifications have been made:
1.
The piston oil control ring side rail material was changed from chrome plated steel to case hardened stainless.
Production Effective
From Engine No. 22R-1602747 (September, 1985)
2.
The end gap clearance of No. 2 compression ring was increased:
Old
New
0.010-0.014 in (0.25-0.35 mm)
0.024-0.028 in (0.60-0.70 mm)
Production Effective
From Engine No. 22R-1932459 (July, 1986)
3.
The end gap clearance of the oil control ring side rail was decreased:
Old
New
0.008-0.028 in (0.20-0.70 mm)
0.008-0.018 in (0.20-0.45 mm)
Production Effective
From Engine No. 22R-1932459 (July, 1986)
The new part numbers shown below, incorporate all of the above modifications.
PART NUMBER INFORMATION
Previous Part No.
New Part No.
Part Name
Standard
13011-35051
13011-35052
Ring Set, Piston
O/S 0.50
13013-35051
13013-35052
Ring Set, Piston
O/S 1.00
13015-35051
13015-35052
Ring Set, Piston
-
- 11400-35051 11400-35052 Short Block Assy.
Be sure to use the new part numbers when piston ring replacement is necessary.
