i-350 L5-3.5L (2006)
Paint: All Technical Service Bulletins
Body - Bumps Or Rust Colored Spots In Paint
TSB # SB07-11-S004
Issue Date: MAY 2007
Bumps Or Rust Colored Spots In Paint Due To rail Or Iron Dust
(This Bulletin Supercedes SB97-11-L007)
Vehicles Affected:
2003-2007 Isuzu Ascender
2007 Isuzu i-290/i-370 (TI)
2006 Isuzu 1-280/1-350 (TI)
Service Information
This bulletin is being revised to add additional model years and repair information
Condition:
Some affected vehicles may experience damage to the exterior paint surface due to industrial fallout or acid rain.
Possible Cause:
Industrial Fallout
Refers to minute particles of iron produced from the friction between train wheels and the tracks or from a facility producing iron dust (e.g. a steel yard
etc.). It can appear as either bumps or rust-colored spots on the paint surface. Paint damage of this type occurs most often when the vehicle remains
parked in one location for an extended period of time.
Acid Rain
Refers to rainwater made acidic or alkaline by impurities in the air. It appears as water spots and/or discolored spots on the paint surface. Damage from
acid rain can vary from slight to severe depending upon how long the impurities have remained on the paint surface.
Correction:
This Service Bulletin addresses three repair levels based on the cause and extent of the damage:
^
Repair No. 1: Surface Level Contamination (to repair damage from industrial fallout).
^
Repair No. 2: Clearcoat Etching (to repair damage from acid rain in which the clearcoat has been damaged or penetrated).
^
Repair No. 3: Basecoat Etching (to repair damage from acid rain in which basecoat penetration has occurred).
Since the extent of the damage can vary significantly from one affected area to another proper diagnosis of the damage extent is critical to the success of
the repairs. Diagnosis should be done on properly cleaned vehicle horizontal surfaces (e.g. hood roof box etc.) and under fluorescent lighting strong
enough to light the vehicle surface without shadows yet not so strong that it washes out the outlines of the imperfections.
Repair No. 1: Surface Level Contamination
1.
Move vehicle to cool shaded area and ensure vehicle surfaces are cool during removal process.
IMPORTANT:
Do Not perform this removal process in direct sunlight or on a vehicle with either hot or warm body panels.
2.
Wash vehicle with high-quality automotive detergent. Rinse thoroughly.
3.
Lightly mist Auto Magic # 49 Body Shine to a 3-foot-square section of affected panel.
IMPORTANT:
Use ONLY Auto Magic # 49 Body Shine, or plain water, to lubricate the clay. Do Not use soap or solvent as a clay lubricant.
4.
Knead bar of Clay Magic(R) CM 2200 (Blue) into flat pancake shape.
