50
th
Anniversary
Ford Mustang Cobra Jet
Official Owners Manual
Techline 1-800-367-3788
Page 19
6.1 Maintenance
Drag racing puts extreme loads on engine components that will require unique
maintenance performed on a regular basis. Ford Performance recommends the
following:
1.
Fill oil to the bottom of crosshatch on the dipstick. Capacity: 7.0-7.5 qt. w/ filter
change.
2.
Change engine oil and filter after every two events, cut open filter and inspect for
foreign material.
3.
Monitor engine oil pressure over time to understand engine bearing wear by
picking a consistent RPM and temperature to look for deviations.
4.
Check cylinder compression and leakage after every two events to monitor
engine condition.
5.
Full engine teardown, check, and rebuild is recommended after 50 runs.
6.
FPP highly recommends the replacement of the following parts:
-
Pistons and rings
-
Main and rod bearings
-
Valves, valve springs, valve seals, spring retainers, and lash caps
-
Supercharger belt
In addition, the following parts should be checked for excess wear and/or
cracks:
- Block
- Crank
- Heads
- Supercharger
- Chain guides (primary and secondary)
After 1 season of usage, the cylinder block should be evaluated for
replacement.
7.
O2 sensors are recommended to be replaced after 50 runs.
8.
Spark plugs have a limited life expectancy and should be checked every 10
passes. Upon any misfire, plugs should be changed immediately. Look for missing
platinum pucks on the ground strap. It is recommended to replace all spark plugs
after every 20 runs.
