900 Turbo Convertible L4-1985cc 2.0L DOHC Turbo EFI (1994)
Timing Chain: Customer Interest
Timing Chain - Rattles/Chatters
CATEGORY
Engine
SECTION
2
PAGE
30
ISSUE
05/93-0330
CODE
215
Subject:
Changing the Timing Chain: Engine In Vehicle
Application:
900, 9000 1985-
A worn timing chain can result in a customer complaint of chain rattle and/or chatter. Fluctuations in timing may also occur on cars with an EZK (TZ59)
ignition system, which can cause driveability or detonation complaints. When the chain wears and stretches, the chain tensioner compensates for this at
the ratcheting mechanism allows movement in this manner. Should you have a customer complain of chain noise, the chain can be replaced with a
service chain developed for this purpose. Follow the Action outlined below.
In order to replace the chain with the engine installed in the vehicle, the chain guides and camshaft sprockets must be in good condition. Inspect both
items with the chain tensioner and camshaft cover removed prior to performing any additional work.
Cars Affected:
900 1985-
9000 1986-
Parts (Figure 1):
Timing Chain Replacement Kit
83 94 678
(Consists of:
Holder for chain (Fig. 1-1) 83 94 652 (over camshaft sprocket) Assembly tool for chain riveting (Fig.1-2)83 94 645 Chain breaker (Fig.
1-3) 83 94 637 Chain link (Fig. 1-4) 83 94 660)
Chain (2.0L)
75 00 697
Alternative chain, open with link
93 21 837
Chain (2.3L)
74 83 761
Alternative chain, open with link 1993-
93 21 845