Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Catalyst Shield: Service and Repair


NOTE: Three Way Catalytic Converters (TWC) may have two cans. If shields on both cans are loose, four clamps (two for each) will be required.

Securing Heat Shields, Typical.:




Securing Heat Shields
1. Attach two band clamps to the TWC or muffler.
2. Align the clamp to secure the heat shield to the muffler or TWC. Tighten the clamp to 7.0 N.m (60 lb in).
3. Trim excess "ear" to approximately 25 mm (1 inch).