Taurus V6-3.0L VIN 2 Flex Fuel (1997)
PURPOSE
Check the lift of each lobe in consecutive order and make a note of the readings.
PROCEDURE
1. Remove valve covers (6582).
2. Remove rocker arm seat bolts, rocker arm seat (6A528) and rocker arm (6564).
3. Remove spark plugs.
4. Make sure valve tappet (6500) is seated against camshaft (6250) by pushing down on push rod.
5. Install Dial Indicator with Bracketry TOOL-4201-C or equivalent so the ball socket adapter of indicator is on top of pushrod. The Cup Shaped
Adapter TOOL-6565-AB or equivalent will be on top of push rod (6565) and in same plane as valve tappet or push rod movement.
NOTE: Crank engine with ignition switch in OFF position.
6. Connect an auxiliary starter switch in starting circuit. Bump crankshaft (6303) over until valve tappet is on base circle of camshaft lobe. At this
point, valve tappet will be in its lowest position. If checking during engine assembly, turn crankshaft using a socket wrench and/or ratchet.
7. Zero the dial indicator.
8. Continue to rotate crankshaft slowly until valve tappet is in fully-raised position (highest indicator reading). Record reading.
9. To check accuracy of original indicator reading, continue to rotate crankshaft until indicator reads zero.
NOTE: If lift on any lobe is below specified service limits, camshaft and valve tappet operating on worn lobes must be replaced, as well as any
flat valve tappet showing pitting or a worn or concave contact face. Roller valve tappets showing wear on roller or having damaged bearings must
be replaced.
10. Compare total lift recorded with specifications.
11. Repeat procedure for each lobe.
12. Remove dial indicator, adapter and auxiliary starter switch.
CAUTION: After installing rocker arms, do not rotate crankshaft until hydraulic valve tappets have had sufficient time to bleed down. Otherwise
serious valve damage may result. Manually bleeding down will reduce waiting time.
13. Install rocker arm seats (if equipped), rocker arms and rocker arm seat bolts (if equipped).
14. Install valve covers.
15. Install spark plugs.
OFF VEHICLE
