Shindaiwa T2510 Service Manual page 11

Servicing Pushrods/Followers/Cam Servicing Pushrods/Followers/Cam
F. Install Cam Followers
Reverse steps above to in stall followers.
Install left-hand (intake valve) follower first.
G. Remove Cam Gear
Removing &
Installing
STEP 1. Remove pushrods and followers.
Cam Gear
STEP 2. Remove cam axle pin.
STEP 3. Lift cam gear out of cam
H. Install Cam Gear
STEP 1. Rotate crankshaft so that piston is
STEP 2. Place cam gear in cam compartment,
STEP 3. Align cam center hole with journal in
STEP 4. Replace cam followers and pushrods.
STEP 5. Replace cam cover and rocker arm
NOTE:
Locking Cam
Timing screw on right side of cam compartment
Position With
can be used to maintain proper cam alignment
Timing Screw
during reassembly. To use, (1) remove muffler
to gain access. (2) Back out timing screw and
remove spacer washer. (3) Set cam in proper
alignment and reinstall screw. Tip of screw
should mesh with marked notch on cam gear.
(4) Complete engine assembly. (5) Remove
timing screw, install original washer and
reinstall with thread-locking compound. Always
use the correct washer (P/N 15401-10028) or
damage to cam gear may result!
Edition 2• 09/2007
IMPORTANT!
compartment.
situated at top-dead-center (TDC).
with narrow, lobe-end pointing down. Make
sure that lobe's center rib aligns with ridge
on cylinder casting and that horizontal marks
on face of cam align with tip of timing screw
on right side of cam compartment.
cylinder casting and insert axle pin.
CAUTION!
!
Be certain that the cam gear is
installed correctly, with piston
at TDC and cam timing marks aligned
exactly. Failure to do so will result in
incorrect valve timing and an engine that
either will not run or that runs erratically.
cover. Be sure to use new gaskets.
When installing cam gear, place piston at TDC,
and insert cam with lobe down using timing
marks to assure proper alignment. Insert pin.
Timing screw can be used to preserve cam
position during reassembly. To use, remove
screw and reinstall without spacer washer
(arrow). Screw tip should mesh with marked
notch on cam gear.
Tip of timing screw should engage cam gear at
marked notch. It prevents changes in cam
position during reassembly. DON'T FORGET
TO REMOVE SCREW, REPLACE SPACER
WASHER AND ADD SEALANT AFTER
REASSEMBLY!
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Section Section
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