To replace or not to replace?
Hi, have a 1992 Sable Wagon with 70K miles and leaky head gaskets. Engine was stopped before overheating occurred. Heads/valves have been reworked and are ready to be installed. Purchased a new AC compressor and new water pump to be installed. Planning to keep the vehicle until petroleum is not longer available.
Dilemma about preventive work.... this is the typical "since access is now better ... lets replace..."
Although access is better... or more appropriately ... less difficult, it would still be challenging to remove the exhaust system in order to remove the oil pan .....to be able to remove the front cover. Plus resetting timing would be required if chain and/or gears are replaced. Cost for additional parts is not that important compared to additional labor, lack of special tools, and limited working conditions. I'm doing the work on my driveway.
What of the following should get done?
- Replace front cover gasket ? (which I believe would require removing oil pan)
- Replace timing gears and/or chain?
- Replace oil pump?
- Have I missed something?
Thanks in advance for your recommendations.
Abel