TM 5-5420-226-20-2
MANIFOLD HEATER SPARK PLUG REPLACEMENT (Sheet 1 of 1)
3/4 in. combination box and open end wrench
TOOLS:
7/8 in. combination box and open end wrench
Feeler gage
Remove powerplant (page 5-2)
PRELIMINARY PROCEDURE:
1. Using 3/4 inch wrench, disconnect ignition cable (A) from spark plug (B).
2. Using 7/8 inch wrench, remove spark plug (B) with gasket. Throw gasket away.
INSTALLATION:
1. Using feeler gage, set spark plug gap at 0.097 inch (-0.003 or +0.017).
2. Using 7/8 inch wrench, install spark plug (B) and new gasket.
3. Connect ignition cable (A) to spark plug (B). Using 3/4 inch wrench, tighten ignition
cable (A) to spark plug (B).
4. Perform manifold heater operational check (page 7-298).
5. Install powerplant (page 5-14).
TA107904
End of Task