SERVICE MANUAL NUMBER 25
262 CID (4.3L) ENGINES
Camshaft
Measuring Lobe Lift
NOTE: Procedure is similar to checking valve timing. If improper valve operation is
indicated, measure lift of each push rod in consecutive order and record readings.
1.
2.
Remove valve mechanism.
Position indicator with ball socket adaptor tool on push rod. Ensuer that push rod is in
lifter socket.
a
72907
a - Ball Socket Adaptor Tool (J-8520-1)
3.
4.
Rotate crankshaft torsional damper slowly in direction of engine rotation until lifter is on
heel of cam lobe. At this point, push rod will be in its lowest position.
Set dial indicator on zero, then rotate balancer slowly (or attach an auxiliary starter
switch and “bump” engine over) until push rod is in fully raised position.
5.
6.
Compare total lift, recorded from dial indicator, with “Specifications.”
Continue to rotate engine until indicator reads zero. This will be a check on accuracy of
original indicator reading.
7.
8.
If camshaft readings for all lobes are within specifications, remove dial indicator
assembly.
Install rocker arm and push rod. Torque nuts to 20 lb-ft (27 Nm).
Index
90-861328--1
NOVEMBER 1999
Page 3A-95
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 1262 CID, Mercury MerCruiser 262 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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