Chrysler laser 1990 Technical Information Manual page 103

(1) The intake camshaft, exhaust camshaft, and the
oil pump are driven by a single timing belt.
(2) Timing belt tension varies at different engine
temperatures and ages of the belt. The auto
AUTO TENSIONER
Piston -1
Check ball -4 ,
Spring
The auto tensioner applies tension to the timing belt
by causing the tensioner arm to move back and
forth in the directions shown by arrow @I.
The bottom figure shows the construction of the
tensioner. The chambers on the right and left
ENGINE
tensioner absorbs these changes in belt ten+n,
not only to prevent the noise problem
getting worse, but to improve durability as weli'l
Tensioner cwllev
of the
Both the tensioner pulley and idler pulley are of the
ball bearing type into which grease has been
packed.
filled with silicone oil.
piston are