Autotech 10.109.01.109 270 Sport Hydraulic Lifter Camshaft, Mk1, Mk2, Mk3 8V & Corrado G60 User Manual
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8. Apply oil to the bearing surfaces, and a small amount of assembly lube to the lobes of
the new camshaft. Lay the camshaft in the head with the lobes for the number one cylin-
der facing up. Install bearing caps two and four and tighten down gradually and crosswise
until the camshaft is pushed completely into the bearing saddles. Install the remaining
bearing caps and torque all nuts to 15 ft/lb.
9. Check to see if the arrow on the drive belt cover is pointing directly to the dot between
the "O" and the "T" on the camshaft sprocket (Fig 1). If not, rotate cam slightly until it does.
10.
Re-install the valve cover and reinforcing strips, tightening the nuts to 7 ft/lb.
11.
Slide camshaft drive belt over cam sprocket.
12.
Using a special spanner wrench (AST P/N 10.012.86400 or equiv.), tighten the drive
belt by rotating the tension pulley in the direction of the arrow (fig. 4). The belt should feel
tight when twisted 90 degrees with the thumb and forefinger, halfway between the cam-
shaft and intermediate shaft pulleys. Tighten the pulley retaining nut to 33 ft/lb.
13.
Caution! Turn crankshaft two complete revolutions and check belt tension, camshaft
alignment, crankshaft alignment, and distributor alignment. If everything checks out, re-
install distributor cap and timing belt cover.
14.
Re-install the upper intake manifold and tighten the five manifold bolts to 15 ft/lb. Re-
install all the vacuum and electrical connections that were disconnected earlier.
15.
Start engine and run it at around 2000 RPM for twenty minutes. This is the crucial
break-in period for a new cam. It is important that the cam has good oil pressure at this
time! Once twenty minutes are up, you're ready to run.
fig. 1
fig. 2
fig. 3
fig. 4