Rover K Series 1.8 VVC, Workbook

Page: 18 / 30

ENGINE K SERIES 1.8 VVC
Technical Academy
Page 16 of 28 01-34-RG-W-Ver:1
Hydraulic Tappets
Check the tappets for signs of wear, scoring and overheating, and ensure oil drilling in
each tappet is free of restrictions.
Figure 15
CAUTION: The hydraulic tappets fitted to the VVC engine are lighter than those fitted to
non-VVC engines, and are similar in appearance to the earlier type tappets, (A), as
shown.
It is essential that these early tappets are not fitted to VVC engines, and to ensure that the
correct replace tappet is fitted, measure the overall length of the tappet.
Tappet outside dia. - (All Engines) = 32.959 to 32.975 mm
Early tappet - (Length) Non-VVC engines = 26.0 mm
Later tappet - (Length) VVC engines = 24.5 mm
Camshafts (Inlet)
Inspection of the inlet camshafts on the VVC engine is the same as other ‘K’ series
engines except that the clamps, 18G 1770
MUST-NOT be removed from the VVC
assembly .
Inlet camshafts and VVC mechanisms are supplied as complete assemblies.
The inlet and exhaust camshaft bearing radial clearances can be checked using
Plastigage.
•
Clean camshaft carrier and cylinder head bearing surfaces using a suitable solvent to
soften the old sealant, and then remove it with the plastic scraper supplied in the
sealant kit.
•
Fit exhaust camshaft into cylinder head and place a piece of Plastigage across each
bearing journal.
•
Install both VVC assemblies, with special tools fitted to the camshaft carrier and retain
in position as shown in figure 17 with a slave M6 bolt, then remove the clamps 18G
1770.