For 1990-2009 cars

# SPECIAL POLICY: CYLINDER BLOCK ADJUSTMENT

#### VEHICLES AFFECTED: 1984 'A', 'F', 'X' And 'P' Model Vehicles Equipped With RPO LR8 or LQ9 2.5L Engines (VIN Codes R and 2)

Some 1984 'A', 'F', 'X' and 'P' model vehicles equipped with RPO LR8 or LQ9 2.5L engines (VIN Codes R and 2) may experience cracks in the cylinder block casting between the valve lifter cavity and the water jacket resulting in a loss of engine coolant and subsequent engine failure.

#### VEHICLES INVOLVED

All 1984 'A', 'F', 'X' and 'P' model vehicles equipped with RPO LR8 or LQ9 2.5L engines (VIN Codes R and 2) from the start of production through the applicable breakpoints.

Celebrity Framingham SOP - EG156453

Oshawa SOP - E1142142

Oklahoma City SOP - E6931001

Camaro Norwood SOP - EN167527

Van Nuys SOP - EL198365

Citation Tarrytown SOP - ET163406

Willow Run - EW106783

6000 Oshawa SOP - E1304298

Firebird Van Nuys SOP - EL246513

Norwood SOP - EN234584

Phoenix Tarrytown SOP - ET214754

Fiero Pontiac SOP - EP266839

Century Doraville SOP - ED499703

Oklahoma City SOP - E6502755

Skylark Willow Run SOP - EW486389

Ciera Doraville SOP - ED455232

Framingham SOP - EG335744

Omega Willow Run SOP - EW342272

SPECIAL POLICY ADJUSTMENT

Should the engine block crack, due to the conditions identified in this Special Policy bulletin, General Motors will replace the partial engine PIN 10030773 and the following associated parts:

Cam shaft TransmiSsion insert Pilot bushing

Cam gear Oil filter

Crank gear Engine oil Lifters Engine Coolant

Gaskets

This Special Policy covers both parts and labour for a period of five (5) years or 160,OOOKM (100,000 miles), whichever occurs first, from the date the vehicle was originally placed in service.

This 'Special Policy Adjustment Bulletin,' should be filed in the 3 ring binder furnished to the Dealer by General Motors.

#### SERVICE PROCEDURE

1. Pressure test for evidence of coolant loss. 2. If pressure test shows no visible evidence of coolant loss, remove cover from valve lifter area and inspect casting above lifter cavity (See illustration). 3. With engine warm and pressure applied, coolant should be visible using a 'black light'. 4. If condition is evident, cylinder block and those associated parts identified in this bulletin must be replaced using applicable replacement procedures referenced in Section 6A of the appropriate 1984 Service Manual.

#### NOTE: IT IS GOOD PRACTICE TO COAT THE CAMSHAFT AND LIFTERS WITH E.O.S. DURING RE-ASSEMBLY (PT NO. 992869) TO PREVENT POSSIBLE CAMSHAFT LOBE AND VALVE LIFTER SCUFFING.

#### PARTS INFORMATION

Parts are to be obtained from the General Motors Parts Department.

Part Number Quantity Description ----------- -------- ----------- 10030773 1 Partial engine

#### IMPORTANT

P/N 10030773 consists of block, pistons and rod assemblies, crankshaft, crankshaft bearings, rod bearings and rear seals.

* 10029616 1 Cam shaft 10005942 1 Cam gear 10028052 1 Crank gear * 5234200 8 Lifters 10026805 1 Gasket kit 10037280 1 Gasket kit 10009785 1 Manual transmission insert pilot bushing ('A', 'X', 'P') 10007202 1 Manual transmissio insert pilot bushing (F) 10018699 1 Automatic transmission insert pilot bushign ('A', 'F', 'X','P') 25010792 1 Oil filter 993082 1 RTV 993203 3L Oil 992869 1 GM EOS 993089 6L Engine coolant

#### WARRANTY CLAIM INFORMATION

A. PARITAL ENGINE REPLACEMENT ---------------------------- When performing the repairs outlined in the Service Procedure of this bulletin and appropriate shop manual instructions, submit a warranty claim for credit as follows: Labour Parts Failed Part Parts Operation Labour Count Number Amount Number Hours ----- ------------ ------ ------ ----- * 10030773 ** T1146 ***

* - Enter the total count of the parts used in completing the repair.

** - The parts amount should be the total dollar amount (Dealer Net Price In Effect At The Time Of Repair Plus 30%) for all parts required for the repair.

*** - Enter the applicable time allowance from the chart published later in this bulletin.

Zone Authorization is required for claims meeting the criteria outlined in this bulletin.

B. OWNER REIMBURSEMENT ------------------- Claims for customer reimbursement of previously paid repairs are to be submitted as a Net Item Dollar Amount on a warranty claim as follows:

Labour Operation Net Item Number Dollar Amount ------ ------------- T4088 $ xxx.xx

The reimbursement to owners who have incurred repair expense for the conditions identified in the special Policy must be claimed on a single Net Item basis.

Prior Zone Authorization is required on all claim submissions which fall into the Owner Reimbursement category.

#### NOTE: IN BOTH INSTANCES OF PARTIAL ENGINE REPLACEMENT AND OWNER REIMBURSEMENT, THE $100.00 DEDUCTIBLE FOR THE POWER PROTECTION PLUS SECOND YEAR WARRANTY IS WAIVED.

LABOUR OPERATION NUMBER 'T1146' TIME ALLOWANCES

Celebrity Camaro Citation Hours Hours Hours ----- ----- ----- Replace partial engine 8.2 5.9 8.2 Add: A - With A/C .3 .4 .3 B - With P/s - .3 .3 C - With Cruise Control .2 - .2 D - With Auto Trans .4 - .4 E - To Recondition all Valves 1.1 1.1 1.1

6000 Firebird Fiero Phoenix Hours Hours Hours Hours Replace ----- ----- ----- ----- Partial Engine 8.3 6.7 7.7 8.3 Add: A - With A/C .4 - .9 .4 B - With Cruise Control .1 - .1 .1 C - To Recondition All Valves 1.1 1.1 1.1 1.1

Ciera Omega Hours Hours ----- ----- Replace Partial Engine 8.9 8.5 Add: A - With A/C .5 .5 B - With Cruise Control .2 .2 C - With Auto Trans - .4 D - To Recondition All Valves 1.1 1.1

* Century Skylark Hours Hours ----- ----- Replace Partial Engine 8.9 8.5 Add: A - With A/C .4 .4 B - With Cruise Control .2 .2 C - With Auto Trans - .4 D - To Recondition All Valves 1.1 1.1

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.