ONLY
if rotors are in specs.
Fig. 194: Oil Pressure Relief Valve
Courtesy of CHRYSLER LLC
8. Remove oil pressure relief valve. See
Engine/Lubrication/VALVE, Oil Pressure Relief - Removal
.
9. Inspect oil pressure relief valve and bore. Inspect for scoring, pitting and free valve operation in bore .
Small marks may be removed with 400-grit wet or dry sandpaper.
10. The relief valve spring has a free length of approximately 49.5 mm (1.95 inches) it should test between
19.5 and 20.5 pounds when compressed to 34 mm (1-11/32 inches). Replace spring that fails to meet
specifications.
11. If oil pressure is low and pump is within specifications, inspect for worn engine bearings or other reasons
for oil pressure loss.
Assembly
ASSEMBLY
1. Assemble pump, using new parts as required.
Install the inner rotor with chamfer facing the cast iron
oil pump cover.
2. Prime oil pump before installation by filling rotor cavity with engine oil.
3. Install cover and tighten screws to 12 N.m (105 in. lbs.).
4. If removed, install the oil pressure relief valve. See
Engine/Lubrication/VALVE, Oil Pressure Relief -
Installation
.
Installation
1 - SPRING
2 - RELIEF VALVE
3 - RETAINER CAP
2010 Jeep Wrangler Sport
2010 ENGINE 3.8L - Service Information - Wrangler
viernes, 1 de octubre de 2021 05:18:32 p. m.
Page 158
© 2011 Mitchell Repair Information Company, LLC.
