V-10 Engine
- Turn the crankshaft until the No. 6 exhaust valve is closing and No.6 intake
valve is opening.
- Insert a 1/4" spacer between rocker arm pad and stem tip of No. 1 intake
valve. Allow spring load to bleed tappet down giving in effect a solid tappet.
- Install a dial indicator so plunger contacts valve spring retainer (on No.
1 intake) as nearly perpendicular as possible. Zero the indicator.
- Rotate the crankshaft clockwise (normal running direction) until the valve
has lifted 0.034". The timing of the crankshaft should now read from
10° before TDC to 2° after TDC. Use a protractor to read the timing
because there are no timimng marks on the engine.
- Caution: DO NOT turn crankshaft any further clockwise as valve
spring might bottom and result in serious engine damage.
- If reading is not within specification limits:
- Check sprocket index marks.
- Inspect timing chain for wear.
- Check accuracy of TDC mark on timing indicator.
This page would not have been possible without the help
of Hank LaViers,
who graciously loaned me his extensive Mopar engine library
Last Update: June 19, 2001
