D+0
.
17mm
(0.0067 in)
Valve
guides
mm
(in)
Length
...................
.
Inner diameter
...
Group
27
Reconditioning
eng
ine
Specifications
When replacing valve seats the interference between the seat and ils bare
should
be
0.
17
mm (0.0067 in) i.e. valve sea! diameter should be 0.
17
mm
(0
.0067 in) greater than diameter
01
bore
in
cylinder head.
....
rnrn
(in)
......
lTVT1
(in)
Inlet
valve
52
Exhaust valve
52
Height above
upper
face
of
cylinder head . . . . .
......
lTVT1
(2
.0488)
8.000- 8.022
(0
.3152- 0.3161)
15.4- 15.6
(0.6068- 0.6146)
0.030- 0.060
0.030- 0.060
(0.0012- 0.0021)
0.15
(2.0488)
8.000- 8.022
(0.3152- 0.3161)
17.9-
18.1
(0.
7053-0
.7131 )
0.060- 0.090
0.060- 0.090
(0.0024- 0.0035)
0.15
(in)
Clearance, valve stem - guide (measured
with
new
valve)
new
............
.
max ..
..................
mm
(in)
.
mm
(in)
10
.0059)
(0
.0059)
Valve
guides
are
available
in
three oversizes,
marked
with
Valve
springs
mm
(in)
Typa 1 Type 2
1
15013
Tappets
mm
(in)
grooves.
M.rklng
Reamer
for
seat
Standard
No
groove
Qversize 1
1
groov
e
5161
2 2 groove
5162
3
3
groove
5163
Note
. The force used when pressing
in
valve guides
must
be at
least
9000 N (900 kp). If the pressing force used
is
lower
, then the
recess
for
the guide
must
be
rea
med
out
to the nearest oversize
and a
guide
of
the corresponding size pressed in.
Type 2 springs
are
fltted
on
following
engine types:
-
821
F
lH
-Jetronic, late types (from 1983-
-
823F
-
819
ET,
B
21
ET
&
821
FT
late
type
(
from
1984- ).
Type 1 springs are f
itted
on all
other
angines typas.
Typel
Type2
Length
L.oad
N
(Ob)
Length Load N (Ib)
45.0
(1.n)
O
45.5
(1
.79)
O
38
.0 (1.50)
280-320
3.00
(1
.50)
280-320
(62-70) (62-70)
27.0 (1.06) 710-790 27.5 (1.08)
702-782
(156-174) (154-172)
Diameter. . .
...........
_
...
.
..
.
36.975- 36.995
/1
.4568- 1.4576)
30-
31
(1.182- 1.221)
0.009- 0.064 (0.0004- 0.0025)
0.030- 0.075 (0.00.
12
- 0.0030)
-~
.........
.
..
.
.......
.
Clearance, adjusting
sh
im
to
cylinder head
........
. •.
adjusting
sh
im
totappet
......
..
..
..•
Adjusting
shims
mm
(in)
Thickness .
Diameter
..
3.
30-4
.50 (in increments of 0.05)
(0.
1300-0
.1773) (in increments of 0.0020)
32
.
980-33
.0
(1
.2994-1.3002)
5
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