D50/Power Ram 50 L4-2555cc 2.6L SOHC (1987)
FIGURE 2
This condition may result from a jet valve failure. The jet valve failure is characterized by one of the causes outlined below (refer to Figure 2 for
description):
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Oil leaking past the oil seal and valve stem.
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Oil leaking past the valve body and oil seal.
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Oil leaking past the O-ring seal between the valve body and cylinder head which may be caused by a torn or cut Oring.
FIGURE 1
DIAGNOSIS
Remove and inspect all spark plugs. If a spark plug is found to be heavily oil fouled and/or appears to have the electrodes eroded or overheated, proceed
to jet valve removal procedure below (Figure 1).
PARTS REQUIRED
Jet Valve Assembly (as required)
PN MD009440
O-Ring (as required)
PN MD009786
INSTALLATION PROCEDURE
1.
Remove only the jet valve of the cylinder showing the spark plug oiling or overheating. Follow the jet valve removal procedures outlined in the
respective model year service manual using Miller Special Tool #MB-998310.