Remove the access plug in the block, on the left side, and install the holding tool, MOT 861 in the hole. Rotate the crankshaft slowly, clockwise, until the tool drops into the TDC locating slot in the crankshaft counterweight.
Fig. 2: TDC locating tool
Don't use this tool as a crankshaft holding tool. When tightening or loosening geartrain fasteners, use a flywheel holding tool, such as tool MOT 582.
Install sprocket holding tool, MOT 854 to retain the camshaft and injection pump sprockets. Make sure that the timing marks are positioned as shown.
Fig. 3: Camshaft and injection pump timing marks aligned
Install the timing belt. There should be a total of 19 belt teeth between the camshaft and injection pump timing marks.
Fig. 4: Indexing the timing cover slots with the sprockets
Temporarily position the timing cover over the sprockets. The camshaft and injection pump timing marks must index with the pointers in the cover's timing slots.
Remove the cover.
Remove the holding tool, MOT 854.
Make sure that the timing belt tensioner bolts are 1/2 turn loose, maximum.
The tensioner should, automatically, bear against the belt giving the proper belt tension. Tighten the tensioner bolts.
Remove the TDC locating tool and install the plug.
Rotate the crankshaft, slowly, CLOCKWISE, two complete revolutions.
NEVER rotate the crankshaft counterclockwise while adjusting belt tension.
Loosen the tensioner bolts 1/8 turn, maximum, then tighten them again.
Check the belt deflection at a point midway between the camshaft and injection pump sprockets. The belt should deflect 1.37 inches (35mm).
Install the timing belt cover.
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