BALLSTUD 1236672 - Caterpillar

PARTS NEEDED
Qty
Part Number Description
1 1871315 GASKET AS-HEAD (As Required)
1 2621940 GASKET AS-HEAD (As Required)
12 3844171 SPRING-GUIDE
12 3844172 LIFTER AS-VALVE
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
Refer to the Disassembly and Assembly for C-9 or C9 Engines for Caterpillar Built Machines.
Refer to "Cylinder Head - Remove".
Refer to "Lifter Group - Remove and Install".
Inspect all valve lifters and camshaft lobes for evidence of excessive wear on the spring guide slot in the lifter body, broken spring guides, roller pin damage in the lifter body, damage to the roller pin retaining ears, lifter roller wear or cam lobe wear from the lifters turning in the lifter bore.
Note - Replace any part number 384-4171 Spring Guides that may have the part number stamped on the spring guide. Use only the 384-4171 Spring Guides that do not have the part number stamped on the tang.
Replace all damaged components as required.
On engines manufactured prior to December 15, 2011, refer to Reuse And Salvage Guidelines, SEBF9008 for the procedure to rework the cylinder block. See "Reworking the Cylinder Block for Better Alignment of the Lifter Follower Clip".
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SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-3000 hrs,
0-24 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
3001-6000 hrs,
25-36 mo 33.0% 50.0% 0.0% 0.0% 50.0% 50.0%
This is a 32.0-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.