Pushrods/Followers/Cam - Shindaiwa T2510 Service Manual

5 Servicing Pushrods/Followers/Cam
Section
A. Remove Pushrods
Removing &
Installing
STEP 1. Remove rocker arm cover.
Pushrods,
STEP 2. Rotate crankshaft so that piston is at
Rocker Arms
& Followers
NOTE:
To identify TDC-compression vs. TDC-exhaust
without opening cam cover, turn crankshaft
until piston reaches top of stroke. Now rotate
crankshaft back and forth. If pushrods and
rocker arms move, piston is at top of exhaust
stroke and lobe is facing up. Make full rotation
of crankshaft, again locating piston at top of
stroke. Now cam lobe should be in correct
position for valve train assembly and
adjustments.
STEP 3. Push valve-contact side of rocker arm
B. Install Pushrods
Reverse steps above to install pushrods.
move upper end of pushrod into position.
When installing pushrods, verify that they are
properly seated in cupped receivers in follower
and rocker arm adjustment screw.
C. Remove Rocker Arms
STEP 1. Remove pushrods.
STEP 2. Slide rocker arm pivot pin out of
STEP 3. Remove rocker arms.
D. Install Rocker Arms
Reverse steps above to install rocker arms.
E. Remove Cam Followers
STEP 1. Remove pushrods.
STEP 2. Remove recoil housing, starter pulley,
STEP 3. Remove follower axle pin and
11
top-dead-center (TDC) of compression
stroke (cam lobe facing down).
against valve spring to lift opposite end off
pushrod. Pop pushrod out of cupped
adjustment screw retainer and lift out.
Repeat process for other pushrod.
Use needle nose pliers or hemostat to
IMPORTANT!
journals in casting.
and cam cover
followers.
Remove rocker arm cover to expose rocker
arms and upper ends of pushrods.
Push rocker arm against valve spring to release
tension on pushrod. Use needle nose pliers or
hemostat to position end of pushrod in cupped
receiver in valve clearance adjustment screw.
Make sure pushrods are seated in retainer cups
in followers and rocker arms upon reassembly.
Left (intake) follower should be installed first.
Edition 2 • 09/2007