Jeep Engine >> VALVE SEAT INSTALLATION CAUTION
Auto Parts Search |  |
| : | : | : |  |
Jeep Engine >> VALVE SEAT INSTALLATION CAUTION
Valve Seat Installation Caution On
Chrysler 4.0L Engines
AERA members have reported coolant loss on Chrysler 4.0L engines used in the Jeep vehicles. This loss occurs shortly after cylinder head remanufacture and can vary in amounts.
If exhaust valve seats are installed during cylinder head rebuild process, the counterbore tool may break into the coolant passages of the head. A valve seat counterbore as small as 1.500 outside diameter by .218 deep may create a through passage. Although each individual head casting may vary in casting thickness in this area, caution should be used in seat selection. Pressure
checking the head after seat installation is advised.
If a seat is installed into the number one cylinder, you may be able to see the newly created passage by looking through the thermostat housing opening at the very front of the head (see illustration).
The AERA Technical Committee
Looking for replacement Jeep engines? Visit our online Rebuilt Engines Store. Need to fix your Jeep engine? Access here the comprehensive online repair guide for your Jeep engine. Click Here to find a used Jeep engine.
Shop online for auto body parts, engines, wheels, lights...
 | 1996 Jeep Grand Cherokee Hood, Without louver holes; A high quality, direct fit OE replacement hood.. | $128.94 |
 | 1997 Jeep Cherokee Fan Shroud, Single type; Made from tough material for maximum strength and durability; Guides and facilitates airflow created by radiator fan; Increases cooling potential of your vehicle; Backed by 1-year, unlimited-mileage warranty.. | $15.43 |
 | 2007 Jeep Patriot Park Lamp Lens, Driver Side, 1 Year Warranty, . | $15.45 |
 | 1983 Jeep Cherokee L6, 4.2 L, 258 CID Rebuilt Engine, Block #444, Head #000. 5 Bolts around outside of valve cover & 2 thru center, Warranty: 7-Year/70,000 Mile, . | $1,290.00 |
 | 1981 Jeep Cherokee Used Door Vent Glass, Front, Passenger Side, Very Good. | $76.00 |
| 2000 Jeep Grand Cherokee Used Heater and A/C controls, man temp cont, Very Good. | $59.90 |
| More parts | ||
Auto Repair Quick Search
Help me find
Search DIY repair manuals by VIN...
| Get the Complete Technical Service Bulletins! |
 Access diagrams and repair information such as wiring diagrams,
diagnosis and repair charts, manufacturer
service bulletins, and OEM Part
numbers of your Jeep vehicle.
|
| Access the Complete guide! |
Need To Fix Your Car or Truck?
Try Our Repair Service Finder
Auto Repair Quick Search
Help me find
