Rover 214 & 414 Service and Repair Manual - Rover club

11.9 Secure partly-removed timing belt
upper left-hand (inner) cover clear of
cylinder head - K16 engine
time to refill with oil on restarting the engine,
resulting in incorrect valve clearances.
K16 engines
9 Remove both camshaft sprockets, then
unscrew the inner cover’s upper retaining
bolts so that the cover can be pulled away
from the cylinder head just far enough for
adequate working clearance. Take care not to
distort or damage the cover or the timing belt
(see illustration).
10 Remove the cylinder head cover (see
illustration 11.0b).
11 Remove the distributor.
12 Unclip the air temperature control valve
vacuum pipe from the air intake duct support
bracket, then unbolt the bracket from the
cylinder head.
13 Working in the reverse of the tightening
sequence (see illustration 11.36), evenly and
progressively slacken the camshaft carrier
bolts by one turn at a time. Once all valve
spring pressure has been relieved, remove the
bolts.
14 Withdraw the camshaft carrier, noting the
presence of the locating dowels, then remove
the camshafts and slide off the oil seals. The
inlet camshaft can be identified by the
distributor rotor arm drive spindle (or its
location), therefore there is no need to mark
the camshafts.
15 Obtain sixteen small, clean plastic
containers, number them 1 to 16, and then fill
them with clean engine oil. Using a rubber
11.26 Lubricate hydraulic tappets
thoroughly and refit correct way up -
K8 engine
sucker, withdraw each hydraulic tappet in turn
(see illustration 11.8), and place it in its
respective container, to prevent oil loss. Do
not interchange the hydraulic tappets or the
rate of wear will be much increased and do
not allow them to lose oil or they will take a
long time to refill with oil on restarting the
engine, resulting in incorrect valve clearances.
Inspection
16 Check each hydraulic tappet for signs of
obvious wear (scoring, pitting, etc) and for
ovality. Renew if necessary.
17 If the engine’s valve clearances have
sounded noisy, particularly if the noise
persists after initial start-up from cold, then
there is reason to suspect a faulty hydraulic
tappet. Only a good mechanic experienced in
these engines can tell whether the noise level
is typical, or if renewal is warranted of one or
more of the tappets.
18 If any tappet’s operation is faulty, then it
must be renewed.
19 Carefully remove all traces of old sealant
from the mating surfaces of the bearing caps
or camshaft carrier and cylinder head by using
a plastic scraper. Examine the camshaft
bearing journals and the cylinder head bearing
surfaces for signs of obvious wear or pitting. If
any such signs are evident, renew the
component concerned.
20 To check the bearing journal running
clearance, remove the hydraulic tappets,
carefully clean the bearing surfaces and refit
the camshaft(s) and carrier/bearing caps with a
strand of Plastigauge across each journal.
Tighten the carrier/bearing cap bolts to the
specified torque wrench setting whilst taking
great care not to rotate the camshaft(s), then
remove the carrier/bearing caps and use the
scale provided with the Plastigauge kit to
measure the width of each compressed strand.
21 If the running clearance of any bearing is
found to be worn to the specified service limit
or beyond, fit a new camshaft and repeat the
check. If the clearance is still excessive, then
the cylinder head must be renewed.
22 To check camshaft endfloat, remove the
hydraulic tappets, carefully clean the bearing
surfaces and refit the camshaft(s) and
carrier/bearing caps. Tighten to the specified
11.27 Camshaft roll pin location at TDC
position (for refitting camshaft bearing
caps) - K8 engine
1689 Rover 214 & 414 Updated Version 09/97
Engine in-car repair procedures 2A•15
torque wrench setting the carrier/bearing cap
bolts, then measure the endfloat using a Dial
Test Indicator (DTI) or dial gauge mounted on
the cylinder head so that its tip bears on the
camshaft right-hand end.
23 Tap the camshaft fully towards the gauge,
zero the gauge, then tap the camshaft fully
away from the gauge and note the gauge
reading. If the endfloat measured is found to
be worn to the specified service limit or
beyond, fit a new camshaft and repeat the
check. If the clearance is still excessive, then
the cylinder head must be renewed.
24 The camshaft itself should show no signs of
marks, pitting or scoring on the lobe surfaces. If
such marks are evident, renew the camshaft.
25 If a camshaft is renewed, extract the roll
pin from the old one and fit the pin to the new
camshaft with its split towards the camshaft’s
centre.
Refitting
K8 engines
26 Liberally oil the cylinder head hydraulic
tappet bores and the tappets (see
illustration). Note that if new tappets are
being fitted, they must be charged with clean
engine oil before installation. Carefully refit the
tappets to the cylinder head, ensuring that
each tappet is refitted to its original bore and is
the correct way up. Some care will be required
to enter the tappets squarely into their bores.
27 Liberally oil the camshaft bearings and
lobes then refit the camshaft. Position the
shaft so that its No 1 cylinder lobes are
pointing away from their valves and the roll
pin in the camshaft’s right-hand end is in the
4 o’clock position when viewed from the righthand
end of the engine (see illustration).
28 Ensure that the locating dowels are
pressed firmly into their recesses. Check that
the mating surfaces are completely clean,
unmarked and free from oil, then apply a thin
bead of special Rover sealant to the mating
surfaces of the front and rear bearing caps as
shown (see illustration 11.29). Carefully
follow the instructions supplied with the
sealant kit. Refit the bearing caps, using the
notes made on removal, to ensure that each is
installed correctly and in its original location
(see illustration).
11.28 Apply sealant (arrowed) and fit
camshaft bearing caps - K8 engine
2A