Apply a coat of Lubriplate 105 to the front camshaft bore. Lubricate the camshaft lobes, journals and thrust washer with LubriplateTM 105. Install the camshaft. While pushing in slightly, rotate the camshaft and carefully work the camshaft through the camshaft bushings. As each camshaft journal passes through a bushing, the camshaft will drop slightly and… Read More »
Insert the plastic trough the full length of the cam bore. Lower the tappet installation tool down the push tube hole, through the tappet bore, and into the trough. Feed the installation tool through the cam bores by carefully pulling the plastic trough/installation tool out the front. The barrier at the rear of the trough… Read More »
Remove the camshaft bushing from the No. 1 bore. Mark the camshaft bushing and cylinder block so you can align the lubricating oil hole in the cylinder block with the lubricating oil hole in the bushing. Install the camshaft bushing so that it is even with the front face of the cylinder block. Be sure… Read More »
Measure the camshaft bore.
The area of edge deterioration should not be greater than the equivalent area of a 2 mm [0.079 in] circle within + or -20 degrees of the nose of the cam lobe. Outside of the + or -20 degrees of the nose of the camlobe, the areas of edge deterioration should not be greater than… Read More »
A single pit should not be greater than the area of a 2 mm [.079 in] diameter circle. Interconnection of pits is not allowable and is treated as one pit. The total pits, when added together, should not exceed a circle of 6 mm [0.236 in]. Only one pit is allowed within + or -20… Read More »
Inspect the fuel transfer pump lobe, valve lobes and bearing journals for cracking, pitting or scoring. Measure the fuel transfer pump and valve lobes. Measure the bearing journals.
Inspect the socket, stem and face for excessive wear, cracks and other damage. Pit marks on the tappet face are acceptable. The following criteria defines the size of the pits allowed. 1. A single pit cannot be greater than 2 mm [0.078 in]. 2. Interconnection of pits is not allowed. 3. Total pits when added… Read More »
Insert the trough to the full length of the cam bore. Make sure the trough is positioned so it will catch the tappet when the wooden dowel is removed. Only remove one tappet at a time. Remove the rubber band from the two companion tappets, securing the tappet not to be removed with the rubber… Read More »