1998 Mitsubishi Montero Crankshaft Pulley

Tiny
ROBERSON1221
  • MEMBER
  • 1998 MITSUBISHI MONTERO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
The serpentine belt keeps poping off due to the crankshaft pulley keeps coming loose for some reason. I can put the pulley back on tight but sometimes when you crank it the pulley goe loose and then the belt pops off. What could this be and what can I do?
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Friday, March 6th, 2009 AT 8:19 AM

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Tiny
MERLIN2021
  • EXPERT
If you have the 3.0 engine, check to see if the saftey recall has been done, it will be free of charge at the dealer.
SAFETY RECALL CAMPAIGN- LOOSE CRANKSHAFT PULLEY BOLT TECHNICAL SERVICE BULLETIN Reference Number(s): SR-01-002, Date of Issue: January, 2001 Related Ref Number(s): SR-01-002 ARTICLE BEGINNING LOOSE CRANKSHAFT PULLEY BOLT SAFETY RECALL CAMPAIGN Model(s): 1991-99 Mitsubishi Montero Sport W/3.0L Engine Group: Safety Recall Bulletin No: SR-01-002 Date: January, 2001 AFFECTED VEHICLES 1997-1999 Montero Sport models equipped with 3.0L engine produced 8/96 - 3/99 1992-1996 Montero models equipped with 3.0L engine produced 1/91 - 1/96 PURPOSE Mitsubishi Motor Sales of America, Inc. Is voluntarily recalling certain affected vehicles for a possible loose crankshaft pulley bolt. The bolt must be removed and reinstalled as described in this bulletin. See Fig. 1. BACKGROUND INFORMATION If the crankshaft pulley bolt was not properly tightened during vehicle production, it could break and cause the crankshaft pulley to fall out of the vehicle, resulting in loss of power steering assist. CUSTOMER NOTIFICATION A letter will be sent to all owners of affected vehicles telling them to bring their vehicle to their Mitsubishi Motors dealer to have the crankshaft pulley bolt inspected. A copy of the customer notification letter appears later in this bulletin. REQUIRED OPERATIONS Before starting the PROCEDURE section of this bulletin, CHECK ON THE WARRANTY SUPERSCREEN to verify that the vehicle is an affected VIN for this campaign and that this campaign procedure has not already been completed. Page 1 of 3 SAFETY RECALL CAMPAIGN- LOOSE CRANKSHAFT PULLEY BOLT -1998 Mits. Remove the crankshaft pulley bolt as follows: 1. On Montero Sport models, remove the undercover skid plate. See Fig. 2. On Montero models, remove the undercover only. 2. Remove the cooling fan lower shroud. See Fig. 3. 3. Use special tool MB991367-01 spanner wrench (use with MIT217213 pins for Montero Sport; use with MIT217212 pins for Montero) and a 22 mm socket to hold the crankshaft pulley in place. Remove the crankshaft pulley bolt. 4. Inspect the crankshaft pulley bolt. A. If the bolt is damaged, replace it (see PARTS INFORMATION section of this bulletin). Then continue with step 5 below. B. If the bolt is NOT damaged, go to step 5. 5. Clean the crankshaft pulley bolt hole, the bolt, and washer with compressed air. 6. Apply engine oil to the bolt threads and between the washer and the bolt head faces shown. See Fig. 4. 7. Reinstall the crankshaft pulley bolt. Torque to 182 + 4 Nm (134 + 3 ft lbs). 8. Reinstall the lower shroud. 9. Reinstall the undercover and skid plate.
CAUTION: USE CARE TO PREVENT DAMAGING THE FAN.
Page 2 of 3 SAFETY RECALL CAMPAIGN- LOOSE CRANKSHAFT PULLEY BOLT -1998 Mits.
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Friday, March 6th, 2009 AT 8:37 AM

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