Exhaust System - Rattle

9217acura01

YEAR
1986 - 91


MODEL
INTEGRA


VIN APPLICATION
ALL


February 3, 1992

BULLETIN NO.
92-005


Exhaust System Rattle

SYMPTOM

The exhaust system rattles audibly at certain engine speeds.


PROBABLE CAUSE

Parts of the exhaust system can resonate in certain engine rpm ranges. This can cause the heat shield pieces to vibrate against each other or against the pipe, or cause the resonator to vibrate.


CORRECTIVE ACTION

Replace the Exhaust Pipe B heat shield or shields (depending on year and model) with the new components listed under PARTS INFORMATION. Modify the resonator housing to reduce vibration.

1. Apply rust penetrant to the nuts holding the Exhaust Pipe B heat shield(s).

2. Remove the nuts and bolts, then remove the heat shield(s).

NOTE: Severely rusted bolts may shear off.








3. Use a C-clamp to dimple the resonator housing at ten points as shown. Make each dimple 3-4 mm deep (6-8 mm total across the diameter).


4. Install the new heat shield, replacing the mounting bolts and nuts as needed.

PARTS INFORMATION

Exhaust Pipe B Heat Shield

Year Front Shield Rear Shield

1986-87 (3-dr) 18020-SD2-670 18021-SD2-670

1986-87 (5-dr) N/A 18021-SE7-670

1988-89 18020-SD2-A30 N/A

1990-91 (3-dr.) 18020-SK7-A20 18021-SK7-A20

1990-91 (4-dr.) 18020-SK7-A20 18021-SK8-A20


WARRANTY CLAIM INFORMATION

In warranty: The normal warranty applies.

Out-of-warranty: Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Service Manager. You must request consideration, and get the DSM's decision, before starting work.

Operation number: 311122

Flat rate time. 0.5 hour

Failed P/N: 18020-SK7-A20

Defect code: 045

Contention code: B07