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

Exhaust System: Testing and Inspection

Leak Testing

1. Let engine run.
2. Temporarily plug tailpipes, e.g. with cloths or plugs.
3. Check for leaks by listening at connection points.
Examples:
- Cylinder head to exhaust manifold
- Manifold to exhaust pipe
4. Repair any leaks found.